|
(relation: domain chemical, range chemical) See metadata for chemicalistypeofchemical 1,897 instances, 1 page |
\"indicates that one chemical is special case of another chemical\ |
| instance | iteration | date learned | confidence |
|---|---|---|---|
| absorbents, carbon | 960 | 23-nov-2015 | 100.0 |
| acetate, carbon | 745 | 27-jun-2013 | 100.0 |
| adrenaline, catecholamines | 406 | 08-sep-2011 | (Seed) 100.0 |
| aerosols, pollutants | 1104 | 23-mar-2018 | 100.0 |
| air_emissions, carbon | 1107 | 30-may-2018 | 100.0 |
| air_emissions, fuels | 1107 | 30-may-2018 | 100.0 |
| air_emissions, sulfur | 1107 | 30-may-2018 | 100.0 |
| alcohol, substances | 1103 | 18-mar-2018 | 100.0 |
| ammonia, compounds | 511 | 15-feb-2012 | 100.0 |
| ammonia, gas | 1103 | 18-mar-2018 | 100.0 |
| ammonia, gases | 1098 | 22-jan-2018 | 100.0 |
| arsenic, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| atmospheric_pollution, fuels | 1103 | 18-mar-2018 | 100.0 |
| atoms, one_carbon | 1046 | 02-apr-2017 | 100.0 |
| benzene, air_pollutants | 599 | 22-jun-2012 | (Seed) 100.0 |
| benzene, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| bromine, carbon | 960 | 23-nov-2015 | 100.0 |
| buildings, carbon | 960 | 23-nov-2015 | 100.0 |
| cadmium, metals | 1094 | 02-jan-2018 | 100.0 |
| cadmium, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| cadmium, toxic_heavy_metals | 1099 | 29-jan-2018 | 100.0 |
| cadmium, toxic_metals | 1107 | 30-may-2018 | 100.0 |
| calcium, water | 1103 | 18-mar-2018 | 100.0 |
| carbon, air_emissions | 1107 | 30-may-2018 | 100.0 |
| carbon, carbon_dioxide | 724 | 12-apr-2013 | 100.0 |
| carbon, chemicals | 655 | 02-nov-2012 | 100.0 |
| carbon, chemical_compounds | 601 | 25-jun-2012 | 100.0 |
| carbon, compounds | 1094 | 02-jan-2018 | 100.0 |
| carbon, exhaust_gases | 1066 | 15-jul-2017 | 100.0 |
| carbon, fossil_fuel | 1094 | 02-jan-2018 | 100.0 |
| carbon, fossil_fuels | 1098 | 22-jan-2018 | 100.0 |
| carbon, free_oxygen | 1104 | 23-mar-2018 | 100.0 |
| carbon, fuel | 1094 | 02-jan-2018 | 100.0 |
| carbon, fuels | 1103 | 18-mar-2018 | 100.0 |
| carbon, fuel_combustion | 1045 | 30-mar-2017 | 100.0 |
| carbon, gasses | 1049 | 16-apr-2017 | 100.0 |
| carbon, gas_production | 1103 | 18-mar-2018 | 100.0 |
| carbon, gas_stream | 1054 | 02-may-2017 | 100.0 |
| carbon, harmful_chemicals | 1052 | 26-apr-2017 | 100.0 |
| carbon, harmful_gases | 1103 | 18-mar-2018 | 100.0 |
| carbon, harmful_greenhouse_gases | 1095 | 18-jan-2018 | 100.0 |
| carbon, harmful_substances | 1107 | 30-may-2018 | 100.0 |
| carbon, hydrocarbons | 655 | 02-nov-2012 | 100.0 |
| carbon, hydrogen_gas | 1103 | 18-mar-2018 | 100.0 |
| carbon, inert_gases | 1107 | 30-may-2018 | 100.0 |
| carbon, ions | 1095 | 18-jan-2018 | 100.0 |
| carbon, lungs | 695 | 10-feb-2013 | 100.0 |
| carbon, nitrogen_oxide_emissions | 1073 | 22-aug-2017 | 100.0 |
| carbon, organic_compounds | 602 | 27-jun-2012 | 100.0 |
| carbon, oxide_levels | 1099 | 29-jan-2018 | 100.0 |
| carbon, pollutants | 655 | 02-nov-2012 | 100.0 |
| carbon, pollutant_emissions | 1090 | 27-dec-2017 | 100.0 |
| carbon, products | 1103 | 18-mar-2018 | 100.0 |
| carbon, sources | 1098 | 22-jan-2018 | 100.0 |
| carbon, substances | 667 | 11-dec-2012 | 100.0 |
| carbon, waste_products | 1100 | 02-feb-2018 | 100.0 |
| carbon, water_vapor | 655 | 02-nov-2012 | 100.0 |
| carbondioxide, greenhouse_gases | 406 | 08-sep-2011 | (Seed) 100.0 |
| carbon_dioxide, atmospheric_concentration | 1098 | 22-jan-2018 | 100.0 |
| carbon_dioxide, atmospheric_gases | 1099 | 29-jan-2018 | 100.0 |
| carbon_dioxide, carbon | 665 | 05-dec-2012 | 100.0 |
| carbon_dioxide, emissions | 1094 | 02-jan-2018 | 100.0 |
| carbon_dioxide, fuel | 1054 | 02-may-2017 | 100.0 |
| carbon_dioxide, fuel_emissions | 1060 | 27-may-2017 | 100.0 |
| carbon_dioxide, gas | 1103 | 18-mar-2018 | 100.0 |
| carbon_dioxide, gases | 1098 | 22-jan-2018 | 100.0 |
| carbon_dioxide, gasses | 1094 | 02-jan-2018 | 100.0 |
| carbon_dioxide, gas_emissions | 851 | 03-jul-2014 | 100.0 |
| carbon_dioxide, house_gases | 1049 | 16-apr-2017 | 100.0 |
| carbon_dioxide, human_emissions | 1076 | 09-sep-2017 | 100.0 |
| carbon_dioxide, production | 718 | 29-mar-2013 | 100.0 |
| carbon_dioxide, substances | 667 | 11-dec-2012 | 100.0 |
| carbon_dioxide_emission, fuels | 1103 | 18-mar-2018 | 100.0 |
| carbon_emissions, fuel | 1099 | 29-jan-2018 | 100.0 |
| carbon_emissions, fuels | 1103 | 18-mar-2018 | 100.0 |
| carbon_monoxide, emissions | 659 | 13-nov-2012 | 100.0 |
| carbon_monoxide, gases | 1098 | 22-jan-2018 | 100.0 |
| carbon_monoxide_levels, carbon | 1066 | 15-jul-2017 | 100.0 |
| carbon_pollution, fuels | 1103 | 18-mar-2018 | 100.0 |
| carbon_tetrachloride, carbon | 960 | 23-nov-2015 | 100.0 |
| chemicals, carbon | 655 | 02-nov-2012 | 100.0 |
| chemicals, dioxide | 655 | 02-nov-2012 | 100.0 |
| chemicals, fuels | 1103 | 18-mar-2018 | 100.0 |
| chemicals, natural_gas | 1103 | 18-mar-2018 | 100.0 |
| chemicals, nitrogen | 559 | 01-may-2012 | 100.0 |
| chemicals, pollutants | 550 | 10-apr-2012 | 100.0 |
| chemical_compounds, carbon | 826 | 29-mar-2014 | 100.0 |
| chlorine, gas | 1103 | 18-mar-2018 | 100.0 |
| chlorine, gases | 1098 | 22-jan-2018 | 100.0 |
| chlorine, molecules | 875 | 04-oct-2014 | 100.0 |
| chlorine, oxidizers | 406 | 08-sep-2011 | (Seed) 100.0 |
| chlorine, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| chlorofluorocarbons, greenhouse_gases | 553 | 20-apr-2012 | (Seed) 100.0 |
| chlorofluorocarbons, pollutants | 553 | 20-apr-2012 | (Seed) 100.0 |
| chromium, metals | 1094 | 02-jan-2018 | 100.0 |
| coal, fuels | 1103 | 18-mar-2018 | 100.0 |
| combustion_byproducts, carbon | 1096 | 19-jan-2018 | 100.0 |
| combustion_by_products, carbon | 1103 | 18-mar-2018 | 100.0 |
| compound, carbon | 667 | 11-dec-2012 | 100.0 |
| compounds, carbon | 655 | 02-nov-2012 | 100.0 |
| compounds, fuels | 1103 | 18-mar-2018 | 100.0 |
| compounds, pollutants | 536 | 23-mar-2012 | 100.0 |
| compressed_air, carbon | 960 | 23-nov-2015 | 100.0 |
| copper, metals | 1094 | 02-jan-2018 | 100.0 |
| crude_oil, raw_materials | 1103 | 18-mar-2018 | 100.0 |
| cyanide, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| diesel, fossil_fuels | 1098 | 22-jan-2018 | 100.0 |
| diesel_exhaust, carbon | 960 | 23-nov-2015 | 100.0 |
| dioxide, acidic_gases | 1051 | 22-apr-2017 | 100.0 |
| dioxide, acids | 655 | 02-nov-2012 | 100.0 |
| dioxide, airborne_pollutants | 1069 | 03-aug-2017 | 100.0 |
| dioxide, air_pollutants | 655 | 02-nov-2012 | 100.0 |
| dioxide, atmospheric_gases | 1099 | 29-jan-2018 | 100.0 |
| dioxide, baking_soda | 1103 | 18-mar-2018 | 100.0 |
| dioxide, biomass | 1046 | 02-apr-2017 | 100.0 |
| dioxide, carbon | 601 | 25-jun-2012 | 100.0 |
| dioxide, carbon_compounds | 655 | 02-nov-2012 | 100.0 |
| dioxide, coal | 1097 | 20-jan-2018 | 100.0 |
| dioxide, compounds | 655 | 02-nov-2012 | 100.0 |
| dioxide, exhaust_gases | 1066 | 15-jul-2017 | 100.0 |
| dioxide, fossil_fuels | 1098 | 22-jan-2018 | 100.0 |
| dioxide, gas | 1103 | 18-mar-2018 | 100.0 |
| dioxide, global_warming_gases | 1046 | 02-apr-2017 | 100.0 |
| dioxide, greenhouse_gas_emissions | 683 | 15-jan-2013 | 100.0 |
| dioxide, harmful_gases | 1103 | 18-mar-2018 | 100.0 |
| dioxide, harmful_greenhouse_gases | 1095 | 18-jan-2018 | 100.0 |
| dioxide, house_gases | 1049 | 16-apr-2017 | 100.0 |
| dioxide, hydrogen | 601 | 25-jun-2012 | 100.0 |
| dioxide, lungs | 695 | 10-feb-2013 | 100.0 |
| dioxide, matter | 689 | 26-jan-2013 | 100.0 |
| dioxide, methane | 601 | 25-jun-2012 | 100.0 |
| dioxide, molecules | 875 | 04-oct-2014 | 100.0 |
| dioxide, natural_gas | 1103 | 18-mar-2018 | 100.0 |
| dioxide, nitrogen | 655 | 02-nov-2012 | 100.0 |
| dioxide, nitrogen_oxides | 602 | 27-jun-2012 | 100.0 |
| dioxide, oil | 670 | 17-dec-2012 | 100.0 |
| dioxide, organic_material | 740 | 13-jun-2013 | 100.0 |
| dioxide, organic_substances | 1045 | 30-mar-2017 | 100.0 |
| dioxide, oxygen_gas | 1046 | 02-apr-2017 | 100.0 |
| dioxide, ozone | 602 | 27-jun-2012 | 100.0 |
| dioxide, poisonous_gases | 1073 | 22-aug-2017 | 100.0 |
| dioxide, pollutants | 601 | 25-jun-2012 | 100.0 |
| dioxide, power_plants | 746 | 30-jun-2013 | 100.0 |
| dioxide, products | 1103 | 18-mar-2018 | 100.0 |
| dioxide, simple_molecules | 1104 | 23-mar-2018 | 100.0 |
| dioxide, sources | 1098 | 22-jan-2018 | 100.0 |
| dioxide, substances | 1094 | 02-jan-2018 | 100.0 |
| dioxide, sugars | 601 | 25-jun-2012 | 100.0 |
| dioxide, sulphur | 1103 | 18-mar-2018 | 100.0 |
| dioxide, toxic_pollutants | 1104 | 23-mar-2018 | 100.0 |
| dioxide, waste | 1098 | 22-jan-2018 | 100.0 |
| dioxide, acid | 655 | 02-nov-2012 | 100.0 |
| dioxides, pollutants | 1099 | 29-jan-2018 | 100.0 |
| dioxin, organochlorines | 406 | 08-sep-2011 | (Seed) 100.0 |
| dioxin, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| dioxins, organochlorines | 406 | 08-sep-2011 | (Seed) 100.0 |
| dioxins, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| dioxygen, carbon | 960 | 23-nov-2015 | 100.0 |
| dopamine, brain_chemicals | 1107 | 30-may-2018 | 100.0 |
| dopamine, catecholamines | 406 | 08-sep-2011 | (Seed) 100.0 |
| dopamine, monoamines | 551 | 19-apr-2012 | (Seed) 100.0 |
| dopamine, neurotransmitter | 406 | 08-sep-2011 | (Seed) 100.0 |
| emissions, fuels | 1103 | 18-mar-2018 | 100.0 |
| emissions, nitrogen | 664 | 01-dec-2012 | 100.0 |
| enough_water, liquid | 1103 | 18-mar-2018 | 100.0 |
| epinephrine, catecholamines | 406 | 08-sep-2011 | (Seed) 100.0 |
| excess_carbon, pollutants | 1099 | 29-jan-2018 | 100.0 |
| excess_carbon_dioxide, fuels | 1103 | 18-mar-2018 | 100.0 |
| exhaust_gas, carbon | 960 | 23-nov-2015 | 100.0 |
| flue_gas, carbon | 960 | 23-nov-2015 | 100.0 |
| flue_gases, carbon | 1064 | 26-jun-2017 | 100.0 |
| fluoride, water | 1104 | 23-mar-2018 | 100.0 |
| fluorides, water | 1103 | 18-mar-2018 | 100.0 |
| formaldehyde, air_pollutants | 599 | 22-jun-2012 | (Seed) 100.0 |
| formaldehyde, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| fossil_fuels, excess_carbon | 1099 | 29-jan-2018 | 100.0 |
| fossil_fuels, gas | 1103 | 18-mar-2018 | 100.0 |
| fossil_fuels, gases | 1098 | 22-jan-2018 | 100.0 |
| fuel, carbon | 1054 | 02-may-2017 | 100.0 |
| fuel, emissions | 1094 | 02-jan-2018 | 100.0 |
| fuel, gas | 1103 | 18-mar-2018 | 100.0 |
| fuels, carbon | 1103 | 18-mar-2018 | 100.0 |
| fuels, carbon_dioxide | 1103 | 18-mar-2018 | 100.0 |
| fuels, compounds | 1103 | 18-mar-2018 | 100.0 |
| fuels, emissions | 1103 | 18-mar-2018 | 100.0 |
| fuels, gas | 1104 | 23-mar-2018 | 100.0 |
| fuels, gases | 1103 | 18-mar-2018 | 100.0 |
| fuels, gas_emissions | 1103 | 18-mar-2018 | 100.0 |
| fuels, greenhouse_emissions | 1108 | 11-jun-2018 | 100.0 |
| fuels, greenhouse_gas | 1103 | 18-mar-2018 | 100.0 |
| fuels, greenhouse_gases | 1103 | 18-mar-2018 | 100.0 |
| fumes, carbon | 1045 | 30-mar-2017 | 100.0 |
| gas, carbon_dioxide | 1103 | 18-mar-2018 | 100.0 |
| gas, cleaner_fuels | 1103 | 18-mar-2018 | 100.0 |
| gas, compressed_natural_gas | 1103 | 18-mar-2018 | 100.0 |
| gas, fossil_fuel | 1103 | 18-mar-2018 | 100.0 |
| gas, fossil_fuels | 1103 | 18-mar-2018 | 100.0 |
| gas, fuel | 1103 | 18-mar-2018 | 100.0 |
| gas, fuels | 1103 | 18-mar-2018 | 100.0 |
| gas, methane | 1103 | 18-mar-2018 | 100.0 |
| gas, nitrogen | 1103 | 18-mar-2018 | 100.0 |
| gas, oil | 1103 | 18-mar-2018 | 100.0 |
| gas, propane | 1103 | 18-mar-2018 | 100.0 |
| gas, sources | 1103 | 18-mar-2018 | 100.0 |
| gas, water | 1104 | 23-mar-2018 | 100.0 |
| gases, anthropogenic_emissions | 1098 | 22-jan-2018 | 100.0 |
| gases, atmospheric_concentration | 1098 | 22-jan-2018 | 100.0 |
| gases, carbon_dioxide | 1098 | 22-jan-2018 | 100.0 |
| gases, carbon_monoxide | 1098 | 22-jan-2018 | 100.0 |
| gases, fossil_fuels | 1098 | 22-jan-2018 | 100.0 |
| gases, fuel | 1098 | 22-jan-2018 | 100.0 |
| gases, fuels | 1103 | 18-mar-2018 | 100.0 |
| gases, methane | 1098 | 22-jan-2018 | 100.0 |
| gases, more_carbon | 1100 | 02-feb-2018 | 100.0 |
| gases, production | 1098 | 22-jan-2018 | 100.0 |
| gases, sources | 1098 | 22-jan-2018 | 100.0 |
| gasoline, fossil_fuels | 1098 | 22-jan-2018 | 100.0 |
| gasoline, gas | 1103 | 18-mar-2018 | 100.0 |
| gasses, carbon | 1049 | 16-apr-2017 | 100.0 |
| gasses, carbon_dioxide | 1049 | 16-apr-2017 | 100.0 |
| gasses, emissions | 1049 | 16-apr-2017 | 100.0 |
| gasses, fossil_fuels | 1098 | 22-jan-2018 | 100.0 |
| gasses, fuels | 1103 | 18-mar-2018 | 100.0 |
| gas_emissions, fuels | 1103 | 18-mar-2018 | 100.0 |
| greenhousegases, air_pollutants | 1096 | 19-jan-2018 | 100.0 |
| greenhouses_gases, carbon | 1046 | 02-apr-2017 | 100.0 |
| greenhouse_gas, fuels | 1103 | 18-mar-2018 | 100.0 |
| greenhouse_gas, pollutants | 553 | 20-apr-2012 | (Seed) 100.0 |
| greenhouse_gases, air_pollutants | 599 | 22-jun-2012 | (Seed) 100.0 |
| greenhouse_gases, emissions | 659 | 13-nov-2012 | 100.0 |
| greenhouse_gases, fuels | 1103 | 18-mar-2018 | 100.0 |
| greenhouse_gases, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| greenhouse_gasses, emissions | 659 | 13-nov-2012 | 100.0 |
| greenhouse_gasses, fuels | 1103 | 18-mar-2018 | 100.0 |
| greenhouse_gasses, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| greenhouse_gas_emissions, air_pollutants | 599 | 22-jun-2012 | (Seed) 100.0 |
| greenhouse_gas_emissions, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| green_house_gas, fuels | 1103 | 18-mar-2018 | 100.0 |
| halocarbons, chlorine | 406 | 08-sep-2011 | (Seed) 100.0 |
| harmful_emissions, fuels | 1103 | 18-mar-2018 | 100.0 |
| harmful_gases, carbon | 1103 | 18-mar-2018 | 100.0 |
| heavy_metals, pollutants | 728 | 29-apr-2013 | 100.0 |
| heavy_metals, substances | 728 | 29-apr-2013 | 100.0 |
| helium, gas | 1103 | 18-mar-2018 | 100.0 |
| hexane, carbon | 960 | 23-nov-2015 | 100.0 |
| histamine, amines | 406 | 08-sep-2011 | (Seed) 100.0 |
| histamine, biogenic_amines | 406 | 08-sep-2011 | (Seed) 100.0 |
| hydrocarbons, carbon | 655 | 02-nov-2012 | 100.0 |
| hydrocarbons, environmental_pollutants | 1049 | 16-apr-2017 | 100.0 |
| hydrocarbons, fuels | 1103 | 18-mar-2018 | 100.0 |
| hydrocarbons, gas | 1103 | 18-mar-2018 | 100.0 |
| hydrocarbons, pollutants | 599 | 22-jun-2012 | 100.0 |
| hydrocarbon_emissions, carbon | 1046 | 02-apr-2017 | 100.0 |
| hydrochloric_acid, carbon | 664 | 01-dec-2012 | 100.0 |
| hydrogen, alternative_fuels | 1095 | 18-jan-2018 | 100.0 |
| hydrogen, atoms | 1094 | 02-jan-2018 | 100.0 |
| hydrogen, carbon_dioxide | 796 | 15-dec-2013 | 100.0 |
| hydrogen, fuels | 1103 | 18-mar-2018 | 100.0 |
| hydrogen, gases | 1098 | 22-jan-2018 | 100.0 |
| hydrogen, molecules | 1094 | 02-jan-2018 | 100.0 |
| hydrogen_chloride, gases | 1098 | 22-jan-2018 | 100.0 |
| hydrogen_cyanide, gases | 1098 | 22-jan-2018 | 100.0 |
| hydrogen_sulfide, gases | 1098 | 22-jan-2018 | 100.0 |
| ions, carbon | 1095 | 18-jan-2018 | 100.0 |
| iron, essential_minerals | 1076 | 09-sep-2017 | 100.0 |
| iron, materials | 1094 | 02-jan-2018 | 100.0 |
| iron, metals | 1094 | 02-jan-2018 | 100.0 |
| iron_ore, raw_materials | 1066 | 15-jul-2017 | 100.0 |
| lead, toxic_heavy_metals | 1099 | 29-jan-2018 | 100.0 |
| lead, toxic_metals | 1107 | 30-may-2018 | 100.0 |
| less_pollution, fuels | 1103 | 18-mar-2018 | 100.0 |
| magnesium, ions | 1095 | 18-jan-2018 | 100.0 |
| magnesium, minerals | 1094 | 02-jan-2018 | 100.0 |
| man_made_emissions, fuels | 1103 | 18-mar-2018 | 100.0 |
| matter, carbon | 709 | 10-mar-2013 | 100.0 |
| matter, emissions | 1094 | 02-jan-2018 | 100.0 |
| matter, gases | 1098 | 22-jan-2018 | 100.0 |
| mercury, heavy_metals | 1094 | 02-jan-2018 | 100.0 |
| mercury, metals | 1094 | 02-jan-2018 | 100.0 |
| mercury, metal_contaminants | 1107 | 30-may-2018 | 100.0 |
| mercury, toxic_heavy_metals | 1099 | 29-jan-2018 | 100.0 |
| metals, compounds | 1094 | 02-jan-2018 | 100.0 |
| metals, pollutants | 728 | 29-apr-2013 | 100.0 |
| metals, substances | 1094 | 02-jan-2018 | 100.0 |
| methane, gas | 1103 | 18-mar-2018 | 100.0 |
| methane, gases | 1098 | 22-jan-2018 | 100.0 |
| methane, much_carbon | 1103 | 18-mar-2018 | 100.0 |
| methane, substances | 667 | 11-dec-2012 | 100.0 |
| methane, toxic_gases | 1070 | 08-aug-2017 | 100.0 |
| methane_gas, carbon | 1107 | 30-may-2018 | 100.0 |
| methane_levels, carbon | 1046 | 02-apr-2017 | 100.0 |
| methylene_chloride, carbon | 960 | 23-nov-2015 | 100.0 |
| moisture, carbon | 602 | 27-jun-2012 | 100.0 |
| moisture, gas | 1103 | 18-mar-2018 | 100.0 |
| moisture, acid | 664 | 01-dec-2012 | 100.0 |
| molecules, hydrogen | 875 | 04-oct-2014 | 100.0 |
| monoxide, byproducts | 1076 | 09-sep-2017 | 100.0 |
| monoxide, carbon | 601 | 25-jun-2012 | 100.0 |
| monoxide, combustion_products | 1107 | 30-may-2018 | 100.0 |
| monoxide, compounds | 210 | 17-feb-2011 | 100.0 |
| monoxide, exhaust_gases | 1066 | 15-jul-2017 | 100.0 |
| monoxide, fossil_fuels | 1098 | 22-jan-2018 | 100.0 |
| monoxide, fuels | 1103 | 18-mar-2018 | 100.0 |
| monoxide, gas | 1103 | 18-mar-2018 | 100.0 |
| monoxide, gasses | 1049 | 16-apr-2017 | 100.0 |
| monoxide, harmful_substances | 1107 | 30-may-2018 | 100.0 |
| monoxide, hydrocarbons | 232 | 11-apr-2011 | 100.0 |
| monoxide, methane | 655 | 02-nov-2012 | 100.0 |
| monoxide, nitrogen | 655 | 02-nov-2012 | 100.0 |
| monoxide, poisonous_gases | 1073 | 22-aug-2017 | 100.0 |
| monoxide, substances | 667 | 11-dec-2012 | 100.0 |
| monoxide, sulphur | 1103 | 18-mar-2018 | 100.0 |
| monoxide, toxic_compounds | 1108 | 11-jun-2018 | 100.0 |
| more_carbon, gases | 1100 | 02-feb-2018 | 100.0 |
| more_carbon, pollutants | 1100 | 02-feb-2018 | 100.0 |
| much_carbon, gases | 1106 | 21-may-2018 | 100.0 |
| much_carbon, greenhouse_gases | 1103 | 18-mar-2018 | 100.0 |
| much_carbon, methane | 1103 | 18-mar-2018 | 100.0 |
| natural_gas, alternative_fuels | 1103 | 18-mar-2018 | 100.0 |
| natural_gas, fuels | 1103 | 18-mar-2018 | 100.0 |
| nickel, metals | 1103 | 18-mar-2018 | 100.0 |
| nickel, toxic_metals | 1107 | 30-may-2018 | 100.0 |
| nitrogen, emissions | 659 | 13-nov-2012 | 100.0 |
| nitrogen, gas | 1103 | 18-mar-2018 | 100.0 |
| nitrogen, nitrogen_dioxide | 553 | 20-apr-2012 | 100.0 |
| nitrogen, particles | 689 | 26-jan-2013 | 100.0 |
| nitrogen, particulates | 446 | 03-nov-2011 | 100.0 |
| nitrogen, particulate_matter | 514 | 19-feb-2012 | 100.0 |
| nitrogen, sources | 1098 | 22-jan-2018 | 100.0 |
| nitrogen, substances | 667 | 11-dec-2012 | (Seed) 100.0 |
| nitrogen, volatile_organic_compounds | 443 | 29-oct-2011 | 100.0 |
| nitrogen_dioxide, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| nitrogen_oxide, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| nitrogen_oxides, air_pollutants | 655 | 02-nov-2012 | 100.0 |
| nitrogen_oxides, carbon | 664 | 01-dec-2012 | 100.0 |
| nitrogen_oxides, greenhouse_gases | 625 | 21-aug-2012 | 100.0 |
| nitrogen_oxides, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| nitrogen_oxides, sources | 1098 | 22-jan-2018 | 100.0 |
| nitrogen_oxides, sulfur | 655 | 02-nov-2012 | 100.0 |
| nitrogen_oxide_emissions, carbon | 1073 | 22-aug-2017 | 100.0 |
| nitrous_oxides, emissions | 1103 | 18-mar-2018 | 100.0 |
| nitrous_oxides, pollutants | 1103 | 18-mar-2018 | 100.0 |
| noradrenaline, brain_chemicals | 1107 | 30-may-2018 | 100.0 |
| norepinephrine, brain_chemicals | 1107 | 30-may-2018 | 100.0 |
| norepinephrine, catecholamines | 406 | 08-sep-2011 | (Seed) 100.0 |
| norepinephrine, monoamines | 551 | 19-apr-2012 | (Seed) 100.0 |
| noxious_gases, carbon | 1103 | 18-mar-2018 | 100.0 |
| oil, fuels | 1103 | 18-mar-2018 | 100.0 |
| oil, fuel_sources | 1103 | 18-mar-2018 | 100.0 |
| oil, gas | 1104 | 23-mar-2018 | 100.0 |
| one_carbon, atoms | 1046 | 02-apr-2017 | 100.0 |
| organic_acid, carbon | 960 | 23-nov-2015 | 100.0 |
| organic_compounds, carbon | 671 | 19-dec-2012 | 100.0 |
| organic_compounds, pollutants | 162 | 13-nov-2010 | 100.0 |
| oxide, gas | 1103 | 18-mar-2018 | 100.0 |
| oxide, greenhouse_gases | 165 | 15-nov-2010 | 100.0 |
| oxides, air_pollutants | 655 | 02-nov-2012 | 100.0 |
| oxides, emissions | 1094 | 02-jan-2018 | 100.0 |
| oxides, fumes | 1045 | 30-mar-2017 | 100.0 |
| oxides, gases | 1098 | 22-jan-2018 | 100.0 |
| oxides, pollutants | 162 | 13-nov-2010 | 100.0 |
| oxides, sources | 1098 | 22-jan-2018 | 100.0 |
| oxides, sulfur | 655 | 02-nov-2012 | 100.0 |
| oxides, sulphur | 1103 | 18-mar-2018 | 100.0 |
| oxide_emissions, carbon | 655 | 02-nov-2012 | 100.0 |
| oxide_levels, carbon | 1099 | 29-jan-2018 | 100.0 |
| oxide_levels, sulfur | 1099 | 29-jan-2018 | 100.0 |
| oxygen, gas | 1103 | 18-mar-2018 | 100.0 |
| ozone, nitrogen | 553 | 20-apr-2012 | 100.0 |
| particles, emissions | 689 | 26-jan-2013 | 100.0 |
| particulate, emissions | 1063 | 23-jun-2017 | 100.0 |
| particulate, gas | 1103 | 18-mar-2018 | 100.0 |
| particulate, pollutants | 1063 | 23-jun-2017 | 100.0 |
| particulates, air_pollutants | 599 | 22-jun-2012 | (Seed) 100.0 |
| particulates, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| particulates, sulfur | 655 | 02-nov-2012 | 100.0 |
| particulates, sulphur | 1103 | 18-mar-2018 | 100.0 |
| particulate_matter, air_pollutants | 599 | 22-jun-2012 | (Seed) 100.0 |
| particulate_matter, emissions | 1094 | 02-jan-2018 | 100.0 |
| particulate_matter, nitrogen | 685 | 18-jan-2013 | 100.0 |
| particulate_matter, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| particulate_matter, sulfur | 665 | 05-dec-2012 | 100.0 |
| pesticides, carbon | 960 | 23-nov-2015 | 100.0 |
| petroleum, fossil_fuels | 1103 | 18-mar-2018 | 100.0 |
| platinum, carbon | 856 | 22-jul-2014 | 100.0 |
| pollutants, carbon | 655 | 02-nov-2012 | 100.0 |
| pollutants, emissions | 661 | 20-nov-2012 | 100.0 |
| pollutants, gases | 1098 | 22-jan-2018 | 100.0 |
| pollutants, sources | 1098 | 22-jan-2018 | 100.0 |
| pollutants, sulfur | 664 | 01-dec-2012 | 100.0 |
| pollutant_emissions, carbon | 1090 | 27-dec-2017 | 100.0 |
| power_plant, carbon | 960 | 23-nov-2015 | 100.0 |
| power_plant_emissions, carbon | 1057 | 15-may-2017 | 100.0 |
| products, carbon | 1103 | 18-mar-2018 | 100.0 |
| propane, fossil_fuels | 1098 | 22-jan-2018 | 100.0 |
| propane, gas | 1103 | 18-mar-2018 | 100.0 |
| scrubbers, carbon | 960 | 23-nov-2015 | 100.0 |
| sensor, carbon | 960 | 23-nov-2015 | 100.0 |
| serotonin, amines | 598 | 21-jun-2012 | (Seed) 100.0 |
| serotonin, brain_chemicals | 1107 | 30-may-2018 | 100.0 |
| serotonin, monoamines | 598 | 21-jun-2012 | (Seed) 100.0 |
| serotonin, monoamine_neurotransmitters | 598 | 21-jun-2012 | (Seed) 100.0 |
| serotonin, neurotransmitter | 598 | 21-jun-2012 | (Seed) 100.0 |
| smog, carbon | 745 | 27-jun-2013 | 100.0 |
| smog_forming_pollutants, carbon | 1103 | 18-mar-2018 | 100.0 |
| soda_lime, carbon | 960 | 23-nov-2015 | 100.0 |
| sodium_hydroxide, carbon | 960 | 23-nov-2015 | 100.0 |
| solution, ions | 1095 | 18-jan-2018 | 100.0 |
| sulfates, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| sulfate_aerosols, sulfur | 1061 | 31-may-2017 | 100.0 |
| sulfur, air_emissions | 1107 | 30-may-2018 | 100.0 |
| sulfur, air_pollutants | 601 | 25-jun-2012 | 100.0 |
| sulfur, fuels | 1103 | 18-mar-2018 | 100.0 |
| sulfur, hydrogen_chloride | 664 | 01-dec-2012 | 100.0 |
| sulfur, nitrogen_oxides | 655 | 02-nov-2012 | 100.0 |
| sulfur, nitrous_oxides | 1103 | 18-mar-2018 | 100.0 |
| sulfur, particulates | 601 | 25-jun-2012 | 100.0 |
| sulfur, pollutants | 601 | 25-jun-2012 | 100.0 |
| sulfur_dioxide, air_pollutants | 599 | 22-jun-2012 | (Seed) 100.0 |
| sulfur_dioxide, carbon | 664 | 01-dec-2012 | 100.0 |
| sulfur_dioxide, fuels | 1103 | 18-mar-2018 | 100.0 |
| sulfur_dioxide, gases | 1098 | 22-jan-2018 | 100.0 |
| sulfur_dioxide, nitrogen | 664 | 01-dec-2012 | 100.0 |
| sulfur_dioxide, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| sulfur_oxides, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| sulphur, particulate_matter | 1103 | 18-mar-2018 | 100.0 |
| trace_metals, compounds | 1100 | 02-feb-2018 | 100.0 |
| trichloroethylene, pollutants | 406 | 08-sep-2011 | (Seed) 100.0 |
| volatile_organic_compounds, pollutants | 162 | 13-nov-2010 | 100.0 |
| warm_water, liquid | 1103 | 18-mar-2018 | 100.0 |
| wastes, carbon | 1045 | 30-mar-2017 | 100.0 |
| waste_gases, carbon | 1048 | 13-apr-2017 | 100.0 |
| waste_materials, carbon | 826 | 29-mar-2014 | 100.0 |
| water, acids | 1103 | 18-mar-2018 | 100.0 |
| water, chemical_pollutants | 1104 | 23-mar-2018 | 100.0 |
| water, compound | 1103 | 18-mar-2018 | 100.0 |
| water, different_chemicals | 1103 | 18-mar-2018 | 100.0 |
| water, flouride | 1103 | 18-mar-2018 | 100.0 |
| water, gases | 1103 | 18-mar-2018 | 100.0 |
| water, gasses | 1103 | 18-mar-2018 | 100.0 |
| water, greenhouse_gases | 1103 | 18-mar-2018 | 100.0 |
| water, harmful_chemicals | 1103 | 18-mar-2018 | 100.0 |
| water, hydrogen | 1103 | 18-mar-2018 | 100.0 |
| water, inorganic_compounds | 1103 | 18-mar-2018 | 100.0 |
| water, ion | 1103 | 18-mar-2018 | 100.0 |
| water, metal_ions | 1103 | 18-mar-2018 | 100.0 |
| water, molecules | 1103 | 18-mar-2018 | 100.0 |
| water, organic_substances | 1103 | 18-mar-2018 | 100.0 |
| water, solution | 1104 | 23-mar-2018 | 100.0 |
| water, substances | 1103 | 18-mar-2018 | 100.0 |
| water, sulfates | 1103 | 18-mar-2018 | 100.0 |
| water, toxic_metals | 1107 | 30-may-2018 | 100.0 |
| water, waste | 1103 | 18-mar-2018 | 100.0 |
| water_vapor, carbon | 655 | 02-nov-2012 | 100.0 |
| water_vapor, certain_gases | 1095 | 18-jan-2018 | 100.0 |
| water_vapor, gases | 1098 | 22-jan-2018 | 100.0 |
| water_vapor, greenhouse_gases | 406 | 08-sep-2011 | (Seed) 100.0 |
| water_vapor, trace_gases | 406 | 08-sep-2011 | (Seed) 100.0 |
| water_vapour, gas | 1103 | 18-mar-2018 | 100.0 |
| water_vapour, gases | 1098 | 22-jan-2018 | 100.0 |
| acid, carbon | 1094 | 02-jan-2018 | 100.0 |
| ethanol, renewable_fuels | 1096 | 19-jan-2018 | 100.0 |
| selenium, essential_minerals | 1076 | 09-sep-2017 | 100.0 |
| sodium, water | 1103 | 18-mar-2018 | 100.0 |
| zinc, essential_minerals | 1076 | 09-sep-2017 | 100.0 |
| zinc, metals | 1094 | 02-jan-2018 | 100.0 |
| zinc, minerals | 1094 | 02-jan-2018 | 100.0 |
| argon, gas | 1103 | 18-mar-2018 | 100.0 |
| carbon, gasoline | 601 | 25-jun-2012 | 100.0 |
| carbon, organic_matter | 601 | 25-jun-2012 | 100.0 |
| carbon, acid | 1094 | 02-jan-2018 | 100.0 |
| carbon_dioxide, compounds | 514 | 19-feb-2012 | 100.0 |
| carbon_dioxide, greenhouse_gases | 163 | 14-nov-2010 | 100.0 |
| carbon_monoxide, pollutants | 162 | 13-nov-2010 | 100.0 |
| chlorine, chemicals | 1094 | 02-jan-2018 | 100.0 |
| coal, fossil_fuels | 1098 | 22-jan-2018 | 100.0 |
| constituent, carbon | 960 | 23-nov-2015 | 100.0 |
| dioxide, chemicals | 655 | 02-nov-2012 | 100.0 |
| dioxide, compound | 655 | 02-nov-2012 | 100.0 |
| dioxide, organic_compounds | 1094 | 02-jan-2018 | 100.0 |
| dioxide, organic_matter | 601 | 25-jun-2012 | 100.0 |
| dioxide, ethanol | 1094 | 02-jan-2018 | 100.0 |
| fuel_plants, carbon | 1104 | 23-mar-2018 | 100.0 |
| gas, diesel | 1103 | 18-mar-2018 | 100.0 |
| gas, gases | 1103 | 18-mar-2018 | 100.0 |
| heavy_metals, compounds | 728 | 29-apr-2013 | 100.0 |
| hydrocarbons, emissions | 659 | 13-nov-2012 | 100.0 |
| jet_fuel, carbon | 960 | 23-nov-2015 | 100.0 |
| mercury, pollutants | 601 | 25-jun-2012 | 100.0 |
| monoxide, carbon_dioxide | 225 | 28-mar-2011 | 100.0 |
| nitrogen_oxides, gases | 1098 | 22-jan-2018 | 100.0 |
| oxides, nitrogen | 655 | 02-nov-2012 | 100.0 |
| ozone, pollutants | 162 | 13-nov-2010 | 100.0 |
| precipitation, carbon | 1103 | 18-mar-2018 | 100.0 |
| substances, carbon | 667 | 11-dec-2012 | 100.0 |
| sugars, carbon | 683 | 15-jan-2013 | 100.0 |
| sulfate, carbon | 960 | 23-nov-2015 | 100.0 |
| travel, carbon | 960 | 23-nov-2015 | 100.0 |
| sodium, solution | 1095 | 18-jan-2018 | 100.0 |
| arsenic, heavy_metals | 1094 | 02-jan-2018 | 100.0 |
| atoms, hydrogen | 1107 | 30-may-2018 | 100.0 |
| dioxide, fossil_fuel | 1084 | 07-dec-2017 | 100.0 |
| fuels, natural_gas | 1103 | 18-mar-2018 | 100.0 |
| fuels, particles | 1103 | 18-mar-2018 | 100.0 |
| gas, oxygen | 1103 | 18-mar-2018 | 100.0 |
| hydrogen, gas | 1103 | 18-mar-2018 | 100.0 |
| magnesium, water | 1103 | 18-mar-2018 | 100.0 |
| monoxide, fuel | 1054 | 02-may-2017 | 100.0 |
| uranium, metals | 1095 | 18-jan-2018 | 100.0 |
| emissions, fuel | 1094 | 02-jan-2018 | 100.0 |
| sulfur, oxides | 655 | 02-nov-2012 | 100.0 |
| carbonic_acid, carbon | 1094 | 02-jan-2018 | 100.0 |
| gas, water_vapour | 1104 | 23-mar-2018 | 100.0 |
| mercury, chemicals | 1094 | 02-jan-2018 | 100.0 |
| mercury, substances | 667 | 11-dec-2012 | 100.0 |
| metals, chemicals | 1094 | 02-jan-2018 | 100.0 |
| particulates, emissions | 659 | 13-nov-2012 | 100.0 |
| sulfur, sulfuric_acid | 601 | 25-jun-2012 | 100.0 |
| acid, gas | 1103 | 18-mar-2018 | 100.0 |
| gas, ammonia | 1104 | 23-mar-2018 | 100.0 |
| methane, gasses | 1049 | 16-apr-2017 | 100.0 |
| gas, hydrocarbons | 1103 | 18-mar-2018 | 100.0 |
| hydrocarbons, nitrogen | 664 | 01-dec-2012 | 100.0 |
| nitrogen_dioxide, gases | 1098 | 22-jan-2018 | 100.0 |
| oil, emissions | 670 | 17-dec-2012 | 100.0 |
| carbon, power_plants | 1094 | 02-jan-2018 | 100.0 |
| nitrogen_oxide, emissions | 1094 | 02-jan-2018 | 100.0 |
| biomass, carbon | 1094 | 02-jan-2018 | 100.0 |
| carbon, waste | 1098 | 22-jan-2018 | 100.0 |
| diesel, oil | 1096 | 19-jan-2018 | 100.0 |
| gas, helium | 1107 | 30-may-2018 | 100.0 |
| gas, products | 1103 | 18-mar-2018 | 100.0 |
| hydrogen, steam | 665 | 05-dec-2012 | 100.0 |
| lead, metals | 1094 | 02-jan-2018 | 100.0 |
| mixtures, carbon | 1048 | 13-apr-2017 | 100.0 |
| monoxide, hydrogen | 1094 | 02-jan-2018 | 100.0 |
| monoxide, materials | 655 | 02-nov-2012 | 100.0 |
| nitrogen, oxides | 172 | 06-dec-2010 | 100.0 |
| nitrous_oxide, gas | 1103 | 18-mar-2018 | 100.0 |
| nitrous_oxide, gases | 1098 | 22-jan-2018 | 100.0 |
| oxide, emissions | 1094 | 02-jan-2018 | 100.0 |
| oxygen, molecules | 1094 | 02-jan-2018 | 100.0 |
| potassium, minerals | 1094 | 02-jan-2018 | 100.0 |
| potassium, water | 1103 | 18-mar-2018 | 100.0 |
| fuel, gases | 1098 | 22-jan-2018 | 100.0 |
| cortisol, stress_hormones | 1052 | 26-apr-2017 | 100.0 |
| water, solvents | 1103 | 18-mar-2018 | 100.0 |
| gas, alternative_fuels | 1103 | 18-mar-2018 | 100.0 |
| propane, gases | 1098 | 22-jan-2018 | 100.0 |
| carbon, biomass | 1094 | 02-jan-2018 | 100.0 |
| dioxide, lactic_acid | 601 | 25-jun-2012 | 100.0 |
| nitrogen, dioxide | 1094 | 02-jan-2018 | 100.0 |
| calcium, minerals | 1094 | 02-jan-2018 | 100.0 |
| chromium, heavy_metals | 1094 | 02-jan-2018 | 100.0 |
| copper, heavy_metals | 1094 | 02-jan-2018 | 100.0 |
| copper, materials | 1095 | 18-jan-2018 | 100.0 |
| dioxide, sulfur | 1094 | 02-jan-2018 | 100.0 |
| emissions, sources | 1098 | 22-jan-2018 | 100.0 |
| fuels, carbon_emissions | 1103 | 18-mar-2018 | 100.0 |
| glucose, carbon | 1103 | 18-mar-2018 | 100.0 |
| iron, minerals | 1094 | 02-jan-2018 | 100.0 |
| natural_gas, fuel | 1103 | 18-mar-2018 | 100.0 |
| oil, natural_gas | 1103 | 18-mar-2018 | 100.0 |
| propane, fuels | 1103 | 18-mar-2018 | 100.0 |
| sulfuric_acid, sulfur | 1094 | 02-jan-2018 | 100.0 |
| sulphur_dioxide, gases | 1098 | 22-jan-2018 | 100.0 |
| ethanol, fuels | 1103 | 18-mar-2018 | 100.0 |
| waste_products, carbon | 1100 | 02-feb-2018 | 100.0 |
| dioxide, carbonic_acid | 601 | 25-jun-2012 | 100.0 |
| gases, gas | 1103 | 18-mar-2018 | 100.0 |
| gasses, production | 1049 | 16-apr-2017 | 100.0 |
| ozone, gases | 1098 | 22-jan-2018 | 100.0 |
| ammonia, chemicals | 1094 | 02-jan-2018 | 100.0 |
| nitrogen_oxide, gas | 1103 | 18-mar-2018 | 100.0 |
| dioxide, production | 718 | 29-mar-2013 | 100.0 |
| nitrogen, fuels | 1103 | 18-mar-2018 | 100.0 |
| carbon_dioxide, sulfur | 601 | 25-jun-2012 | 100.0 |
| methanol, carbon | 664 | 01-dec-2012 | 100.0 |
| fuels, sulfur | 1103 | 18-mar-2018 | 100.0 |
| sulfur, compounds | 1094 | 02-jan-2018 | 100.0 |
| argon, gases | 1098 | 22-jan-2018 | 100.0 |
| dopamine, chemicals | 1094 | 02-jan-2018 | 100.0 |
| fuel, natural_gas | 1103 | 18-mar-2018 | 100.0 |
| gas, oxide | 1104 | 23-mar-2018 | 100.0 |
| gas, production | 1103 | 18-mar-2018 | 100.0 |
| lead, chemicals | 1094 | 02-jan-2018 | 100.0 |
| methane, emissions | 1094 | 02-jan-2018 | 100.0 |
| serotonin, neurotransmitters | 1094 | 02-jan-2018 | 100.0 |
| sulfur_dioxide, emissions | 1094 | 02-jan-2018 | 100.0 |
| volatile_organic_compounds, nitrogen | 664 | 01-dec-2012 | 100.0 |
| waste, carbon | 1098 | 22-jan-2018 | 100.0 |
| selenium, minerals | 1094 | 02-jan-2018 | 100.0 |
| dioxide, animals | 763 | 27-aug-2013 | 100.0 |
| methane, greenhouse_gases | 601 | 25-jun-2012 | 100.0 |
| ethanol, alternative_fuels | 1095 | 18-jan-2018 | 100.0 |
| greenhouse_gases, fuel | 1054 | 02-may-2017 | 100.0 |
| sulfur, emissions | 659 | 13-nov-2012 | 100.0 |
| ozone, emissions | 661 | 20-nov-2012 | 100.0 |
| biomass, gas | 1103 | 18-mar-2018 | 100.0 |
| monoxide, fumes | 1094 | 02-jan-2018 | 100.0 |
| fuels, gasses | 1103 | 18-mar-2018 | 100.0 |
| hydrogen, emissions | 664 | 01-dec-2012 | 100.0 |
| soot, emissions | 1094 | 02-jan-2018 | 100.0 |
| acetylcholine, neurotransmitters | 1094 | 02-jan-2018 | 100.0 |
| asbestos, substances | 1094 | 02-jan-2018 | 100.0 |
| coal, fuel | 1097 | 20-jan-2018 | 100.0 |
| dioxide, decomposition | 1094 | 02-jan-2018 | 100.0 |
| fossil_fuels, carbon | 1098 | 22-jan-2018 | 100.0 |
| lead, materials | 1095 | 18-jan-2018 | 100.0 |
| nitrous_oxide, emissions | 1094 | 02-jan-2018 | 100.0 |
| oxygen, compound | 1095 | 18-jan-2018 | 100.0 |
| platinum, metals | 1095 | 18-jan-2018 | 100.0 |
| serotonin, chemicals | 1094 | 02-jan-2018 | 100.0 |
| sources, gas | 1104 | 23-mar-2018 | 100.0 |
| steam, gas | 1103 | 18-mar-2018 | 100.0 |
| volatile_organic_compounds, emissions | 1094 | 02-jan-2018 | 100.0 |
| sulphur, oxides | 1103 | 18-mar-2018 | 100.0 |
| nitrogen, organic_compounds | 535 | 21-mar-2012 | 100.0 |
| cortisol, hormones | 1094 | 02-jan-2018 | 100.0 |
| carbon, flue_gases | 1064 | 26-jun-2017 | 100.0 |
| waste, fuel | 1098 | 22-jan-2018 | 100.0 |
| hydrocarbons, gases | 1098 | 22-jan-2018 | 100.0 |
| helium, gases | 1098 | 22-jan-2018 | 100.0 |
| dioxide, solution | 601 | 25-jun-2012 | 100.0 |
| water, harmful_substances | 1107 | 30-may-2018 | 100.0 |
| compounds, sulfur | 664 | 01-dec-2012 | 100.0 |
| molecules, carbon | 875 | 04-oct-2014 | 100.0 |
| molecule, oxygen | 793 | 05-dec-2013 | 100.0 |
| dioxide, minerals | 601 | 25-jun-2012 | 100.0 |
| formaldehyde, gases | 1098 | 22-jan-2018 | 100.0 |
| dioxide, ions | 1095 | 18-jan-2018 | 100.0 |
| methane, molecules | 875 | 04-oct-2014 | 100.0 |
| petroleum, fuels | 1103 | 18-mar-2018 | 100.0 |
| ammonia, gasses | 1049 | 16-apr-2017 | 100.0 |
| water, fats | 1103 | 18-mar-2018 | 100.0 |
| hydrogen, hydrocarbons | 665 | 05-dec-2012 | 100.0 |
| natural_gas, fossil_fuels | 1103 | 18-mar-2018 | 100.0 |
| nitrous_oxide, greenhouse_gases | 1094 | 02-jan-2018 | 100.0 |
| nitrogen, gasses | 1049 | 16-apr-2017 | 100.0 |
| ammonium, solution | 1096 | 19-jan-2018 | 100.0 |
| antimony, metals | 1095 | 18-jan-2018 | 100.0 |
| calcium, solution | 1096 | 19-jan-2018 | 100.0 |
| carbon_dioxide, pollutants | 1094 | 02-jan-2018 | 100.0 |
| gas, chlorine | 1103 | 18-mar-2018 | 100.0 |
| lead, pollutants | 1094 | 02-jan-2018 | 100.0 |
| metals, materials | 1094 | 02-jan-2018 | 100.0 |
| monoxide, gasoline | 1094 | 02-jan-2018 | 100.0 |
| natural_gas, oil | 1103 | 18-mar-2018 | 100.0 |
| nitrogen_oxides, emissions | 1094 | 02-jan-2018 | 100.0 |
| particles, fuels | 1103 | 18-mar-2018 | 100.0 |
| pesticides, chemicals | 1095 | 18-jan-2018 | 100.0 |
| pesticides, pollutants | 1094 | 02-jan-2018 | 100.0 |
| production, gas | 1103 | 18-mar-2018 | 100.0 |
| tin, metals | 1095 | 18-jan-2018 | 100.0 |
| hydrocarbon, emissions | 659 | 13-nov-2012 | 100.0 |
| nitrogen, pollutants | 1094 | 02-jan-2018 | 100.0 |
| monoxide, charcoal | 1094 | 02-jan-2018 | 100.0 |
| molecule, carbon | 731 | 07-may-2013 | 100.0 |
| fossil_fuels, gasses | 1098 | 22-jan-2018 | 100.0 |
| magnesium, essential_minerals | 1076 | 09-sep-2017 | 100.0 |
| hydrogen, products | 1103 | 18-mar-2018 | 100.0 |
| carbonates, carbon | 740 | 13-jun-2013 | 100.0 |
| hydrogen, compound | 1095 | 18-jan-2018 | 100.0 |
| urea, carbon | 1094 | 02-jan-2018 | 100.0 |
| nitrogen, inert_gases | 1107 | 30-may-2018 | 100.0 |
| pollutants, gas | 1103 | 18-mar-2018 | 100.0 |
| sulfur, acid | 1094 | 02-jan-2018 | 100.0 |
| kerosene, fuels | 1103 | 18-mar-2018 | 100.0 |
| carbon, molecules | 1094 | 02-jan-2018 | 100.0 |
| greenhouse_gas_emissions, fuels | 1103 | 18-mar-2018 | 100.0 |
| fuels, coal | 1103 | 18-mar-2018 | 100.0 |
| molecules, oxygen | 1095 | 18-jan-2018 | 100.0 |
| ammonia, emissions | 1094 | 02-jan-2018 | 100.0 |
| asbestos, materials | 1095 | 18-jan-2018 | 100.0 |
| atom, carbon | 1103 | 18-mar-2018 | 100.0 |
| cadmium, materials | 1095 | 18-jan-2018 | 100.0 |
| carbon, compound | 1094 | 02-jan-2018 | 100.0 |
| carbon, forms | 1094 | 02-jan-2018 | 100.0 |
| chemicals, materials | 1094 | 02-jan-2018 | 100.0 |
| dopamine, hormones | 1094 | 02-jan-2018 | 100.0 |
| fuel, coal | 1097 | 20-jan-2018 | 100.0 |
| gas, argon | 1104 | 23-mar-2018 | 100.0 |
| gasoline, carbon | 1094 | 02-jan-2018 | 100.0 |
| gasoline, fuels | 1103 | 18-mar-2018 | 100.0 |
| hydrocarbons, compounds | 1094 | 02-jan-2018 | 100.0 |
| iron, raw_materials | 1094 | 02-jan-2018 | 100.0 |
| materials, gas | 1103 | 18-mar-2018 | 100.0 |
| matter, gas | 1103 | 18-mar-2018 | 100.0 |
| methanol, fuels | 1103 | 18-mar-2018 | 100.0 |
| monoxide, natural_gas | 1103 | 18-mar-2018 | 100.0 |
| norepinephrine, hormones | 1094 | 02-jan-2018 | 100.0 |
| organic_matter, carbon | 1094 | 02-jan-2018 | 100.0 |
| phosphorus, minerals | 1094 | 02-jan-2018 | 100.0 |
| radon, gas | 1103 | 18-mar-2018 | 100.0 |
| sources, carbon | 1098 | 22-jan-2018 | 100.0 |
| sulphur_dioxide, emissions | 1094 | 02-jan-2018 | 100.0 |
| water, emissions | 1107 | 30-may-2018 | 100.0 |
| water, solvent | 1104 | 23-mar-2018 | 100.0 |
| acid, water | 1103 | 18-mar-2018 | 100.0 |
| cortisol, chemicals | 1094 | 02-jan-2018 | 100.0 |
| selenium, metals | 1094 | 02-jan-2018 | 100.0 |
| zinc, heavy_metals | 1094 | 02-jan-2018 | 100.0 |
| water, dioxide | 1103 | 18-mar-2018 | 100.0 |
| nitrogen_oxide, gases | 1098 | 22-jan-2018 | 100.0 |
| production, gases | 1098 | 22-jan-2018 | 100.0 |
| water, organic_chemicals | 1103 | 18-mar-2018 | 100.0 |
| alternative_fuels, gas | 1103 | 18-mar-2018 | 100.0 |
| natural_gas, hydrocarbons | 1103 | 18-mar-2018 | 100.0 |
| vapors, sulfur | 1084 | 07-dec-2017 | 100.0 |
| radon, water | 1103 | 18-mar-2018 | 100.0 |
| carbon_monoxide, nitrogen | 437 | 20-oct-2011 | 100.0 |
| nitric_acid, nitrogen | 722 | 08-apr-2013 | 100.0 |
| nitrogen_gas, gas | 1103 | 18-mar-2018 | 100.0 |
| water, fuel | 1103 | 18-mar-2018 | 100.0 |
| nitrogen, molecules | 875 | 04-oct-2014 | 100.0 |
| dioxide, solvents | 602 | 27-jun-2012 | 100.0 |
| compounds, gases | 1098 | 22-jan-2018 | 100.0 |
| particles, pollutants | 689 | 26-jan-2013 | 100.0 |
| dioxides, nitrogen | 1099 | 29-jan-2018 | 100.0 |
| carbon, iron | 1094 | 02-jan-2018 | 100.0 |
| carbon, gas | 1103 | 18-mar-2018 | 100.0 |
| natural_gas, gases | 1103 | 18-mar-2018 | 100.0 |
| benzene, chemicals | 1094 | 02-jan-2018 | 100.0 |
| carbon, fuel_use | 1094 | 02-jan-2018 | 100.0 |
| carbon_dioxide, oxygen | 1108 | 11-jun-2018 | 100.0 |
| cobalt, metals | 1095 | 18-jan-2018 | 100.0 |
| crude_oil, gas | 1103 | 18-mar-2018 | 100.0 |
| cyanide, chemicals | 1095 | 18-jan-2018 | 100.0 |
| dioxide, oxide | 1094 | 02-jan-2018 | 100.0 |
| formaldehyde, chemicals | 1094 | 02-jan-2018 | 100.0 |
| gas, industries | 1103 | 18-mar-2018 | 100.0 |
| gas, ethanol | 1107 | 30-may-2018 | 100.0 |
| hydrogen, compounds | 1094 | 02-jan-2018 | 100.0 |
| iron, compounds | 1094 | 02-jan-2018 | 100.0 |
| mercury, gases | 1098 | 22-jan-2018 | 100.0 |
| natural_gas, carbon | 1103 | 18-mar-2018 | 100.0 |
| potassium, solution | 1095 | 18-jan-2018 | 100.0 |
| silver, materials | 1095 | 18-jan-2018 | 100.0 |
| waste, gas | 1103 | 18-mar-2018 | 100.0 |
| acid, compounds | 1094 | 02-jan-2018 | 100.0 |
| gas, dioxide | 1103 | 18-mar-2018 | 99.9 |
| gas, hydrogen | 1103 | 18-mar-2018 | 99.9 |
| sulfur, carbon | 1094 | 02-jan-2018 | 99.9 |
| carbon, fuel_emissions | 1060 | 27-may-2017 | 99.9 |
| carbon_dioxide, acid | 665 | 05-dec-2012 | 99.9 |
| toxic_metals, chemicals | 1107 | 30-may-2018 | 99.9 |
| water, inorganic_arsenic | 1103 | 18-mar-2018 | 99.9 |
| gas, hydrocarbon | 1104 | 23-mar-2018 | 99.9 |
| water_vapor, gas | 1103 | 18-mar-2018 | 99.9 |
| gas, carbon | 1103 | 18-mar-2018 | 99.9 |
| carbon_dioxide, chemicals | 664 | 01-dec-2012 | 99.9 |
| particulate_matter, gases | 1098 | 22-jan-2018 | 99.9 |
| water, zinc | 1103 | 18-mar-2018 | 99.9 |
| aerosols, sulfur | 1104 | 23-mar-2018 | 99.9 |
| carbon, ozone | 601 | 25-jun-2012 | 99.9 |
| sulfur, power_plants | 746 | 30-jun-2013 | 99.9 |
| xenon, inert_gases | 1107 | 30-may-2018 | 99.9 |
| emissions, pollutants | 659 | 13-nov-2012 | 99.9 |
| hydrogen, sulfur | 602 | 27-jun-2012 | 99.9 |
| nitrogen, dioxides | 1099 | 29-jan-2018 | 99.9 |
| nitrogen_oxides, gas | 1103 | 18-mar-2018 | 99.9 |
| water, nitrogen_compounds | 1103 | 18-mar-2018 | 99.9 |
| ammonia, nitrogen | 1096 | 19-jan-2018 | 99.9 |
| asbestos, chemicals | 1094 | 02-jan-2018 | 99.9 |
| atom, oxygen | 1103 | 18-mar-2018 | 99.9 |
| compound, oxygen | 1096 | 19-jan-2018 | 99.9 |
| compounds, chemicals | 1096 | 19-jan-2018 | 99.9 |
| dioxide, bodies | 1095 | 18-jan-2018 | 99.9 |
| dioxide, catalyst | 1095 | 18-jan-2018 | 99.9 |
| dioxide, harmful_emissions | 1103 | 18-mar-2018 | 99.9 |
| dioxide, simple_sugars | 1096 | 19-jan-2018 | 99.9 |
| epinephrine, hormones | 1095 | 18-jan-2018 | 99.9 |
| fossil_fuel, carbon | 1094 | 02-jan-2018 | 99.9 |
| fuels, nitrogen | 1103 | 18-mar-2018 | 99.9 |
| fuels, oil | 1103 | 18-mar-2018 | 99.9 |
| gas, crude_oil | 1103 | 18-mar-2018 | 99.9 |
| gas, nitrous_oxide | 1104 | 23-mar-2018 | 99.9 |
| gas, petrol | 1103 | 18-mar-2018 | 99.9 |
| hydrocarbons, substances | 1094 | 02-jan-2018 | 99.9 |
| methane, fuels | 1103 | 18-mar-2018 | 99.9 |
| monoxide, propane | 1094 | 02-jan-2018 | 99.9 |
| natural_gas, gas | 1103 | 18-mar-2018 | 99.9 |
| nitrogen, compounds | 1094 | 02-jan-2018 | 99.9 |
| oil, hydrocarbons | 1095 | 18-jan-2018 | 99.9 |
| oil, substances | 1094 | 02-jan-2018 | 99.9 |
| oxides, harmful_emissions | 1103 | 18-mar-2018 | 99.9 |
| ozone, carbon | 1094 | 02-jan-2018 | 99.9 |
| particulates, nitrogen | 1094 | 02-jan-2018 | 99.9 |
| pesticides, compounds | 1094 | 02-jan-2018 | 99.9 |
| pesticides, substances | 1094 | 02-jan-2018 | 99.9 |
| soot, pollutants | 1094 | 02-jan-2018 | 99.9 |
| sulfur, chemicals | 1094 | 02-jan-2018 | 99.9 |
| sulphur, fuels | 1103 | 18-mar-2018 | 99.9 |
| water, liquids | 1103 | 18-mar-2018 | 99.9 |
| water, solutions | 1104 | 23-mar-2018 | 99.9 |
| water, sources | 1103 | 18-mar-2018 | 99.9 |
| acid, nitrogen | 664 | 01-dec-2012 | 99.9 |
| coal, sources | 1098 | 22-jan-2018 | 99.9 |
| gases, pollutants | 1098 | 22-jan-2018 | 99.9 |
| emissions, total_carbon | 1098 | 22-jan-2018 | 99.9 |
| sulphur, emissions | 1103 | 18-mar-2018 | 99.9 |
| carbon, diesel | 1094 | 02-jan-2018 | 99.9 |
| oxide, sulphur | 1103 | 18-mar-2018 | 99.9 |
| acid, carbon_dioxide | 724 | 12-apr-2013 | 99.9 |
| hydrogen_sulphide, gases | 1098 | 22-jan-2018 | 99.9 |
| ethylene, gases | 1098 | 22-jan-2018 | 99.9 |
| carbon_monoxide, gasses | 1049 | 16-apr-2017 | 99.9 |
| nitrogen, acid | 599 | 22-jun-2012 | 99.9 |
| biomass, fuels | 1103 | 18-mar-2018 | 99.9 |
| carbon, fuel_sources | 1103 | 18-mar-2018 | 99.9 |
| water_vapor, gasses | 1049 | 16-apr-2017 | 99.9 |
| sulfur_dioxide, air_emissions | 1107 | 30-may-2018 | 99.9 |
| sulfur, aerosols | 1104 | 23-mar-2018 | 99.9 |
| sources, fuels | 1103 | 18-mar-2018 | 99.8 |
| water, additives | 1103 | 18-mar-2018 | 99.8 |
| sulfur, sources | 1098 | 22-jan-2018 | 99.8 |
| free_oxygen, carbon | 1104 | 23-mar-2018 | 99.8 |
| monoxide, unburned_hydrocarbons | 1107 | 30-may-2018 | 99.8 |
| emissions, fossil_fuels | 1098 | 22-jan-2018 | 99.8 |
| steam, fuel | 1094 | 02-jan-2018 | 99.8 |
| gases, products | 1103 | 18-mar-2018 | 99.8 |
| arsenic, compounds | 1094 | 02-jan-2018 | 99.8 |
| arsenic, materials | 1094 | 02-jan-2018 | 99.8 |
| carbon, materials | 1094 | 02-jan-2018 | 99.8 |
| carbon, area | 1114 | 25-aug-2018 | 99.8 |
| chemicals, compounds | 1095 | 18-jan-2018 | 99.8 |
| chromium, minerals | 1094 | 02-jan-2018 | 99.8 |
| dioxin, chemicals | 1095 | 18-jan-2018 | 99.8 |
| dioxins, chemicals | 1094 | 02-jan-2018 | 99.8 |
| dust, carbon | 1103 | 18-mar-2018 | 99.8 |
| emissions, coal | 1097 | 20-jan-2018 | 99.8 |
| emissions, _ | 1095 | 18-jan-2018 | 99.8 |
| epinephrine, neurotransmitters | 1095 | 18-jan-2018 | 99.8 |
| fuels, greenhouse_gasses | 1103 | 18-mar-2018 | 99.8 |
| gas, compounds | 1103 | 18-mar-2018 | 99.8 |
| gas, kerosene | 1103 | 18-mar-2018 | 99.8 |
| gas, liquid | 1103 | 18-mar-2018 | 99.8 |
| gas, methanol | 1104 | 23-mar-2018 | 99.8 |
| gas, petroleum_gas | 1104 | 23-mar-2018 | 99.8 |
| heat_trapping_gases, fuels | 1103 | 18-mar-2018 | 99.8 |
| hydrocarbon, gas | 1103 | 18-mar-2018 | 99.8 |
| iodine, minerals | 1094 | 02-jan-2018 | 99.8 |
| iron, heavy_metals | 1095 | 18-jan-2018 | 99.8 |
| liquid_nitrogen, gas | 1103 | 18-mar-2018 | 99.8 |
| mercury, gas | 1103 | 18-mar-2018 | 99.8 |
| methanol, gas | 1103 | 18-mar-2018 | 99.8 |
| molybdenum, metals | 1095 | 18-jan-2018 | 99.8 |
| oxides, substances | 1107 | 30-may-2018 | 99.8 |
| petrol, gas | 1103 | 18-mar-2018 | 99.8 |
| serotonin, hormones | 1095 | 18-jan-2018 | 99.8 |
| sulphur_dioxide, carbon | 1094 | 02-jan-2018 | 99.8 |
| warm_water, solution | 1105 | 31-mar-2018 | 99.8 |
| water, fuels | 1103 | 18-mar-2018 | 99.8 |
| water, hydrogen_gas | 1107 | 30-may-2018 | 99.8 |
| water, sugars | 1103 | 18-mar-2018 | 99.8 |
| water_vapour, carbon | 1094 | 02-jan-2018 | 99.8 |
| xenon, gas | 1103 | 18-mar-2018 | 99.8 |
| acid, hydrogen | 1107 | 30-may-2018 | 99.8 |
| acid, sulfur | 1096 | 19-jan-2018 | 99.8 |
| zinc, water | 1103 | 18-mar-2018 | 99.8 |
| acetylene, gases | 1098 | 22-jan-2018 | 99.8 |
| oxide, compounds | 210 | 17-feb-2011 | 99.8 |
| neon, gases | 1098 | 22-jan-2018 | 99.8 |
| fumes, fuels | 1103 | 18-mar-2018 | 99.8 |
| oxygen, atoms | 1094 | 02-jan-2018 | 99.8 |
| toxic_metals, carbon | 1107 | 30-may-2018 | 99.8 |
| molecule, hydrogen | 1103 | 18-mar-2018 | 99.8 |
| carbon_dioxide, sources | 1098 | 22-jan-2018 | 99.8 |
| sulfur, nitrogen | 655 | 02-nov-2012 | 99.8 |
| nitrous_oxides, sulfur | 1103 | 18-mar-2018 | 99.8 |
| gases, emissions | 1098 | 22-jan-2018 | 99.7 |
| sulfur, vapors | 1084 | 07-dec-2017 | 99.7 |
| carbon_dioxide, fuels | 1103 | 18-mar-2018 | 99.7 |
| sulphur, coal | 1103 | 18-mar-2018 | 99.7 |
| carbon, metals | 728 | 29-apr-2013 | 99.7 |
| fuel_emissions, carbon | 1060 | 27-may-2017 | 99.7 |
| water, boron | 1103 | 18-mar-2018 | 99.7 |
| fuels, carbon_dioxide_emission | 1103 | 18-mar-2018 | 99.7 |
| water_vapor, compounds | 667 | 11-dec-2012 | 99.7 |
| dioxide, gasoline | 602 | 27-jun-2012 | 99.7 |
| nitrogen_oxide, compounds | 1095 | 18-jan-2018 | 99.7 |
| platinum, precious_metals | 1096 | 19-jan-2018 | 99.7 |
| nitrogen, sulfur | 1095 | 18-jan-2018 | 99.7 |
| fuels, greenhouse_gas_emissions | 1103 | 18-mar-2018 | 99.7 |
| pollutants, fuels | 1103 | 18-mar-2018 | 99.7 |
| more_carbon, fuels | 1103 | 18-mar-2018 | 99.6 |
| volatile_organic_compounds, sources | 1098 | 22-jan-2018 | 99.6 |
| ammonia, molecules | 1094 | 02-jan-2018 | 99.6 |
| arsenic, metals | 1095 | 18-jan-2018 | 99.6 |
| barium, metals | 1095 | 18-jan-2018 | 99.6 |
| benzene, substances | 1094 | 02-jan-2018 | 99.6 |
| cadmium, hazardous_materials | 1095 | 18-jan-2018 | 99.6 |
| carbon, minerals | 1094 | 02-jan-2018 | 99.6 |
| carbon, plastics | 1095 | 18-jan-2018 | 99.6 |
| carbon_dioxide, products | 1103 | 18-mar-2018 | 99.6 |
| carbon_monoxide, air_pollutants | 1094 | 02-jan-2018 | 99.6 |
| carbon_monoxide, compounds | 1094 | 02-jan-2018 | 99.6 |
| carbon_monoxide, gas | 1103 | 18-mar-2018 | 99.6 |
| coal, minerals | 1097 | 20-jan-2018 | 99.6 |
| compounds, nitrogen | 1094 | 02-jan-2018 | 99.6 |
| copper, compounds | 1095 | 18-jan-2018 | 99.6 |
| dioxide, calcium | 1095 | 18-jan-2018 | 99.6 |
| dioxide, chemical_compounds | 1095 | 18-jan-2018 | 99.6 |
| dioxide, criteria_pollutants | 1107 | 30-may-2018 | 99.6 |
| dioxide, flour | 1103 | 18-mar-2018 | 99.6 |
| dioxide, oxides | 1096 | 19-jan-2018 | 99.6 |
| dioxide, particulates | 1097 | 20-jan-2018 | 99.6 |
| dioxide, refrigerants | 1103 | 18-mar-2018 | 99.6 |
| dioxide, starches | 1095 | 18-jan-2018 | 99.6 |
| dioxide, calcium_carbonate | 1107 | 30-may-2018 | 99.6 |
| emissions, terms | 1095 | 18-jan-2018 | 99.6 |
| fuels, heat_trapping_gases | 1103 | 18-mar-2018 | 99.6 |
| gas, biodiesel | 1104 | 23-mar-2018 | 99.6 |
| gas, materials | 1107 | 30-may-2018 | 99.6 |
| gas, power_plants | 1112 | 24-jul-2018 | 99.6 |
| gasoline, fuel | 1095 | 18-jan-2018 | 99.6 |
| hydrocarbon, gases | 1098 | 22-jan-2018 | 99.6 |
| hydrogen, materials | 1095 | 18-jan-2018 | 99.6 |
| kerosene, gas | 1103 | 18-mar-2018 | 99.6 |
| lead, substances | 1095 | 18-jan-2018 | 99.6 |
| minerals, carbon | 1094 | 02-jan-2018 | 99.6 |
| monoxide, sulfur | 1094 | 02-jan-2018 | 99.6 |
| monoxide, waste | 1098 | 22-jan-2018 | 99.6 |
| nitrogen, chemicals | 1094 | 02-jan-2018 | 99.6 |
| oil, liquids | 1095 | 18-jan-2018 | 99.6 |
| organic_compounds, nitrogen | 1094 | 02-jan-2018 | 99.6 |
| oxide, production | 1095 | 18-jan-2018 | 99.6 |
| oxygen, compounds | 1094 | 02-jan-2018 | 99.6 |
| particulate_matter, carbon | 1094 | 02-jan-2018 | 99.6 |
| petrol, fuels | 1103 | 18-mar-2018 | 99.6 |
| products, gas | 1103 | 18-mar-2018 | 99.6 |
| propane, hydrocarbons | 1095 | 18-jan-2018 | 99.6 |
| silicon, water | 1103 | 18-mar-2018 | 99.6 |
| sulfide, gas | 1103 | 18-mar-2018 | 99.6 |
| sulfur, particulate_matter | 1094 | 02-jan-2018 | 99.6 |
| uranium, minerals | 1094 | 02-jan-2018 | 99.6 |
| _, emissions | 1097 | 20-jan-2018 | 99.6 |
| ethanol, fuel | 1095 | 18-jan-2018 | 99.6 |
| sodium, crystals | 1096 | 19-jan-2018 | 99.6 |
| sources, emissions | 1098 | 22-jan-2018 | 99.6 |
| hydrocarbons, sources | 1098 | 22-jan-2018 | 99.6 |
| methane_gas, gas | 1107 | 30-may-2018 | 99.6 |
| oxygen, ions | 1095 | 18-jan-2018 | 99.6 |
| excess_carbon, fossil_fuels | 1099 | 29-jan-2018 | 99.6 |
| zinc, ions | 1095 | 18-jan-2018 | 99.6 |
| carbon_dioxide, water | 1103 | 18-mar-2018 | 99.6 |
| biodiesel, gas | 1103 | 18-mar-2018 | 99.5 |
| sulphur, oxide | 1103 | 18-mar-2018 | 99.5 |
| oxygen, fuel | 1054 | 02-may-2017 | 99.5 |
| monoxide, vapors | 1084 | 07-dec-2017 | 99.5 |
| carbon, tailpipe_emissions | 1091 | 29-dec-2017 | 99.4 |
| sulfur, molecules | 875 | 04-oct-2014 | 99.4 |
| gases, nitrous_oxide | 1098 | 22-jan-2018 | 99.4 |
| carbon, carbon_emissions | 1099 | 29-jan-2018 | 99.4 |
| total_carbon, fuels | 1103 | 18-mar-2018 | 99.3 |
| gases, natural_gas | 1103 | 18-mar-2018 | 99.3 |
| sulfur, byproducts | 1096 | 19-jan-2018 | 99.3 |
| dioxide, glucose | 1103 | 18-mar-2018 | 99.3 |
| petrochemicals, gas | 1103 | 18-mar-2018 | 99.3 |
| hydrogen, organic_compounds | 671 | 19-dec-2012 | 99.3 |
| dioxide, lime | 1103 | 18-mar-2018 | 99.2 |
| acid_rain, sulfur | 1094 | 02-jan-2018 | 99.2 |
| alkaline, solution | 1096 | 19-jan-2018 | 99.2 |
| ammonia, substances | 1095 | 18-jan-2018 | 99.2 |
| analysis, carbon | 1094 | 02-jan-2018 | 99.2 |
| arsenic, chemicals | 1094 | 02-jan-2018 | 99.2 |
| arsenic, toxic_heavy_metals | 1099 | 29-jan-2018 | 99.2 |
| asbestos, products | 1103 | 18-mar-2018 | 99.2 |
| atrazine, water | 1103 | 18-mar-2018 | 99.2 |
| biodiesel, fuels | 1103 | 18-mar-2018 | 99.2 |
| cadmium, substances | 1095 | 18-jan-2018 | 99.2 |
| calcium, essential_minerals | 1095 | 18-jan-2018 | 99.2 |
| carbon, baking_soda | 1103 | 18-mar-2018 | 99.2 |
| carbon, calcium | 1095 | 18-jan-2018 | 99.2 |
| carbon, companies | 1111 | 06-jul-2018 | 99.2 |
| carbon, emissions | 1095 | 18-jan-2018 | 99.2 |
| carbon, industries | 1095 | 18-jan-2018 | 99.2 |
| carbon, power_plant | 1094 | 02-jan-2018 | 99.2 |
| chlorine, atoms | 1095 | 18-jan-2018 | 99.2 |
| chlorine, carbon | 1094 | 02-jan-2018 | 99.2 |
| chromium, toxic_metals | 1107 | 30-may-2018 | 99.2 |
| chromium, water | 1103 | 18-mar-2018 | 99.2 |
| compound, emissions | 1094 | 02-jan-2018 | 99.2 |
| compounds, hydrogen | 1107 | 30-may-2018 | 99.2 |
| compounds, materials | 1096 | 19-jan-2018 | 99.2 |
| cyanide, compounds | 1095 | 18-jan-2018 | 99.2 |
| diesel, traditional_fuels | 1095 | 18-jan-2018 | 99.2 |
| diesel_fuel, fuels | 1103 | 18-mar-2018 | 99.2 |
| dioxide, acid_gases | 1107 | 30-may-2018 | 99.2 |
| dioxide, carbonate | 1096 | 19-jan-2018 | 99.2 |
| dioxide, charcoal | 1096 | 19-jan-2018 | 99.2 |
| dioxide, ethylene | 1094 | 02-jan-2018 | 99.2 |
| dioxide, formic_acid | 1095 | 18-jan-2018 | 99.2 |
| dioxide, limestone | 1095 | 18-jan-2018 | 99.2 |
| dioxide, nitrous_oxide | 1095 | 18-jan-2018 | 99.2 |
| dioxide, organic_acids | 1095 | 18-jan-2018 | 99.2 |
| dioxide, plastics | 1096 | 19-jan-2018 | 99.2 |
| dioxide, systems | 1097 | 20-jan-2018 | 99.2 |
| dioxide, fatty_acids | 1095 | 18-jan-2018 | 99.2 |
| dioxides, carbon | 1099 | 29-jan-2018 | 99.2 |
| ethane, gas | 1103 | 18-mar-2018 | 99.2 |
| fluorine, compounds | 1094 | 02-jan-2018 | 99.2 |
| forms, carbon | 1094 | 02-jan-2018 | 99.2 |
| fuel, gasoline | 1098 | 22-jan-2018 | 99.2 |
| fuels, sulfur_dioxide | 1103 | 18-mar-2018 | 99.2 |
| fuel_combustion, carbon | 1094 | 02-jan-2018 | 99.2 |
| fuel_use, carbon | 1094 | 02-jan-2018 | 99.2 |
| gas, carbon_monoxide | 1103 | 18-mar-2018 | 99.2 |
| gas, ethane | 1104 | 23-mar-2018 | 99.2 |
| gas, minerals | 1104 | 23-mar-2018 | 99.2 |
| gas, petrochemicals | 1104 | 23-mar-2018 | 99.2 |
| greenhouse_emissions, fuels | 1108 | 11-jun-2018 | 99.2 |
| greenhouse_gases, substances | 1094 | 02-jan-2018 | 99.2 |
| greenhouse_gas_emissions, emissions | 1094 | 02-jan-2018 | 99.2 |
| heavy_metals, chemicals | 1095 | 18-jan-2018 | 99.2 |
| herbicides, chemicals | 1094 | 02-jan-2018 | 99.2 |
| hydrogen, chemical_compounds | 1095 | 18-jan-2018 | 99.2 |
| hydrogen, hydrogen_peroxide | 1095 | 18-jan-2018 | 99.2 |
| iron, particles | 1095 | 18-jan-2018 | 99.2 |
| mercury, carbon | 1094 | 02-jan-2018 | 99.2 |
| mercury, emissions | 1094 | 02-jan-2018 | 99.2 |
| mercury, hazardous_materials | 1095 | 18-jan-2018 | 99.2 |
| mercury, minerals | 1095 | 18-jan-2018 | 99.2 |
| mercury, water | 1103 | 18-mar-2018 | 99.2 |
| metals, carbon | 1094 | 02-jan-2018 | 99.2 |
| methane, compounds | 1095 | 18-jan-2018 | 99.2 |
| methane, water | 1103 | 18-mar-2018 | 99.2 |
| monoxide, particles | 1094 | 02-jan-2018 | 99.2 |
| nitrogen_dioxide, carbon | 1094 | 02-jan-2018 | 99.2 |
| oxide, pollutants | 1107 | 30-may-2018 | 99.2 |
| oxides, methane | 1095 | 18-jan-2018 | 99.2 |
| oxides, toxic_fumes | 1107 | 30-may-2018 | 99.2 |
| oxygen, molecule | 1096 | 19-jan-2018 | 99.2 |
| particulates, gas | 1103 | 18-mar-2018 | 99.2 |
| particulate_matter, gas | 1103 | 18-mar-2018 | 99.2 |
| phosphorus, substances | 1094 | 02-jan-2018 | 99.2 |
| power_plants, gas | 1103 | 18-mar-2018 | 99.2 |
| silica, minerals | 1094 | 02-jan-2018 | 99.2 |
| silver, heavy_metals | 1095 | 18-jan-2018 | 99.2 |
| silver, precious_metals | 1096 | 19-jan-2018 | 99.2 |
| sodium_carbonate, carbon | 1094 | 02-jan-2018 | 99.2 |
| solvents, chemicals | 1095 | 18-jan-2018 | 99.2 |
| substances, gases | 1098 | 22-jan-2018 | 99.2 |
| sulfur, acid_rain | 1094 | 02-jan-2018 | 99.2 |
| sulfur, fuel | 1095 | 18-jan-2018 | 99.2 |
| sulfur, production | 1094 | 02-jan-2018 | 99.2 |
| sulfur_dioxide, compounds | 1095 | 18-jan-2018 | 99.2 |
| tin, materials | 1095 | 18-jan-2018 | 99.2 |
| uranium, materials | 1095 | 18-jan-2018 | 99.2 |
| water, harmful_pollutants | 1104 | 23-mar-2018 | 99.2 |
| water, hexavalent_chromium | 1107 | 30-may-2018 | 99.2 |
| water, inorganic_chemicals | 1104 | 23-mar-2018 | 99.2 |
| water, pollutant | 1104 | 23-mar-2018 | 99.2 |
| water_vapor, hydrogen | 1107 | 30-may-2018 | 99.2 |
| acid, seawater | 1103 | 18-mar-2018 | 99.2 |
| ethanol, gas | 1103 | 18-mar-2018 | 99.2 |
| sodium, gas | 1103 | 18-mar-2018 | 99.2 |
| zinc, materials | 1095 | 18-jan-2018 | 99.2 |
| carbon, matter | 689 | 26-jan-2013 | 99.2 |
| sodium, ions | 1095 | 18-jan-2018 | 99.1 |
| gas, natural_gas | 1103 | 18-mar-2018 | 99.1 |
| nitrogen, sulphur | 1103 | 18-mar-2018 | 99.1 |
| gases, carbon | 1098 | 22-jan-2018 | 99.1 |
| particles, sulfur | 689 | 26-jan-2013 | 99.0 |
| water, by_products | 1103 | 18-mar-2018 | 99.0 |
| dioxide, urea | 601 | 25-jun-2012 | 98.9 |
| oil, gases | 1098 | 22-jan-2018 | 98.9 |
| oxides, carbon | 601 | 25-jun-2012 | 98.9 |
| chlorine, compounds | 664 | 01-dec-2012 | 98.9 |
| sulfide, gases | 1098 | 22-jan-2018 | 98.9 |
| oxides, compounds | 655 | 02-nov-2012 | 98.9 |
| dioxide, fuel | 1054 | 02-may-2017 | 98.8 |
| gas, water_vapor | 1103 | 18-mar-2018 | 98.8 |
| water, carbonic_acid | 1103 | 18-mar-2018 | 98.8 |
| dioxide, sugar | 601 | 25-jun-2012 | 98.8 |
| coal, gases | 1098 | 22-jan-2018 | 98.8 |
| molecules, nitrogen | 875 | 04-oct-2014 | 98.7 |
| carbon, organic_acids | 602 | 27-jun-2012 | 98.6 |
| nitrogen_oxides, fuels | 1103 | 18-mar-2018 | 98.6 |
| dioxide, bicarbonate | 655 | 02-nov-2012 | 98.6 |
| monoxide, chemicals | 210 | 17-feb-2011 | 98.5 |
| dioxide, methanol | 601 | 25-jun-2012 | 98.5 |
| coal, hydrocarbons | 1097 | 20-jan-2018 | 98.5 |
| argon, inert_gas | 1094 | 02-jan-2018 | 98.4 |
| atoms, chlorine | 1103 | 18-mar-2018 | 98.4 |
| atoms, silicon | 1103 | 18-mar-2018 | 98.4 |
| calcium, metals | 1095 | 18-jan-2018 | 98.4 |
| carbon, flue_gas | 1094 | 02-jan-2018 | 98.4 |
| carbon, gas_streams | 1095 | 18-jan-2018 | 98.4 |
| carbon, molecule | 1095 | 18-jan-2018 | 98.4 |
| carbon, properties | 1095 | 18-jan-2018 | 98.4 |
| carbon, sensor | 1094 | 02-jan-2018 | 98.4 |
| carbon, smog | 1094 | 02-jan-2018 | 98.4 |
| carbon, sulfate | 1095 | 18-jan-2018 | 98.4 |
| carbon_dioxide, carbon_monoxide | 1096 | 19-jan-2018 | 98.4 |
| carbon_dioxide, glucose | 1107 | 30-may-2018 | 98.4 |
| carbon_dioxide, nitrogen | 1095 | 18-jan-2018 | 98.4 |
| carbon_dioxide, toxic_gases | 1094 | 02-jan-2018 | 98.4 |
| carbon_dioxide_emissions, fuels | 1103 | 18-mar-2018 | 98.4 |
| carbon_dioxide_gas, carbon | 1095 | 18-jan-2018 | 98.4 |
| carbon_monoxide, substances | 1095 | 18-jan-2018 | 98.4 |
| chloride, carbon | 1096 | 19-jan-2018 | 98.4 |
| chlorine, substances | 1095 | 18-jan-2018 | 98.4 |
| chromium, substances | 1095 | 18-jan-2018 | 98.4 |
| compound, hydrogen | 1103 | 18-mar-2018 | 98.4 |
| compounds, gas | 1103 | 18-mar-2018 | 98.4 |
| copper, solution | 1096 | 19-jan-2018 | 98.4 |
| dioxide, air_emissions | 1107 | 30-may-2018 | 98.4 |
| dioxide, ash | 1107 | 30-may-2018 | 98.4 |
| dioxide, carbonates | 1095 | 18-jan-2018 | 98.4 |
| dioxide, diesel_fuel | 1097 | 20-jan-2018 | 98.4 |
| dioxide, hydrogen_sulfide | 1095 | 18-jan-2018 | 98.4 |
| dioxide, liquid | 1097 | 20-jan-2018 | 98.4 |
| dioxins, substances | 1095 | 18-jan-2018 | 98.4 |
| dust, sulfur | 1103 | 18-mar-2018 | 98.4 |
| emissions, gasses | 1103 | 18-mar-2018 | 98.4 |
| ethane, hydrocarbons | 1095 | 18-jan-2018 | 98.4 |
| excess_carbon, fuels | 1103 | 18-mar-2018 | 98.4 |
| fertilizer, carbon | 1095 | 18-jan-2018 | 98.4 |
| flouride, water | 1103 | 18-mar-2018 | 98.4 |
| formaldehyde, carbon | 1094 | 02-jan-2018 | 98.4 |
| formaldehyde, substances | 1094 | 02-jan-2018 | 98.4 |
| fuel, greenhouse_gases | 1094 | 02-jan-2018 | 98.4 |
| fuels, global_carbon | 1103 | 18-mar-2018 | 98.4 |
| fuel_oil, fuels | 1103 | 18-mar-2018 | 98.4 |
| gas, liquids | 1107 | 30-may-2018 | 98.4 |
| gas, raw_materials | 1104 | 23-mar-2018 | 98.4 |
| gas, refining | 1104 | 23-mar-2018 | 98.4 |
| gas, steam | 1104 | 23-mar-2018 | 98.4 |
| gas, _ | 1103 | 18-mar-2018 | 98.4 |
| gas, acid | 1104 | 23-mar-2018 | 98.4 |
| gases, hydrogen | 1107 | 30-may-2018 | 98.4 |
| gases, landfill | 1104 | 23-mar-2018 | 98.4 |
| gasoline, ethanol | 1108 | 11-jun-2018 | 98.4 |
| global_carbon, fuels | 1103 | 18-mar-2018 | 98.4 |
| greenhouse_effect, fuels | 1103 | 18-mar-2018 | 98.4 |
| heavy_metals, materials | 1095 | 18-jan-2018 | 98.4 |
| hydrocarbons, air_pollutants | 1094 | 02-jan-2018 | 98.4 |
| hydrocarbons, organic_compounds | 1095 | 18-jan-2018 | 98.4 |
| hydrogen, mercaptans | 1094 | 02-jan-2018 | 98.4 |
| hydrogen, substances | 1095 | 18-jan-2018 | 98.4 |
| hydrogen, sulfuric_acid | 1095 | 18-jan-2018 | 98.4 |
| hydrogen, water_vapor | 1094 | 02-jan-2018 | 98.4 |
| hydrogen_gas, gas | 1103 | 18-mar-2018 | 98.4 |
| hydrogen_sulfide, gas | 1103 | 18-mar-2018 | 98.4 |
| iron, alloys | 1107 | 30-may-2018 | 98.4 |
| iron, carbon | 1095 | 18-jan-2018 | 98.4 |
| iron, products | 1107 | 30-may-2018 | 98.4 |
| iron, pyrite | 1103 | 18-mar-2018 | 98.4 |
| iron, substances | 1095 | 18-jan-2018 | 98.4 |
| iron_ore, materials | 1094 | 02-jan-2018 | 98.4 |
| iron_ore, minerals | 1095 | 18-jan-2018 | 98.4 |
| jet_fuel, fuels | 1103 | 18-mar-2018 | 98.4 |
| krypton, gas | 1103 | 18-mar-2018 | 98.4 |
| krypton, gases | 1098 | 22-jan-2018 | 98.4 |
| lead, emissions | 1095 | 18-jan-2018 | 98.4 |
| lead, hazardous_materials | 1095 | 18-jan-2018 | 98.4 |
| matter, fuels | 1103 | 18-mar-2018 | 98.4 |
| methane, production | 1095 | 18-jan-2018 | 98.4 |
| moisture, sulfur | 1095 | 18-jan-2018 | 98.4 |
| monoxide, steam | 1095 | 18-jan-2018 | 98.4 |
| monoxide, toxic_fumes | 1103 | 18-mar-2018 | 98.4 |
| nickel, materials | 1103 | 18-mar-2018 | 98.4 |
| nickel, substances | 1103 | 18-mar-2018 | 98.4 |
| nitrates, compounds | 1094 | 02-jan-2018 | 98.4 |
| nitrates, nitrogen | 1095 | 18-jan-2018 | 98.4 |
| nitric_oxide, nitrogen | 1094 | 02-jan-2018 | 98.4 |
| nitrogen, fumes | 1094 | 02-jan-2018 | 98.4 |
| nitrogen, production | 1094 | 02-jan-2018 | 98.4 |
| nitrous_oxides, gases | 1103 | 18-mar-2018 | 98.4 |
| noradrenaline, hormones | 1095 | 18-jan-2018 | 98.4 |
| oil, industries | 1095 | 18-jan-2018 | 98.4 |
| organic_compounds, gases | 1098 | 22-jan-2018 | 98.4 |
| oxides, oxygen | 1096 | 19-jan-2018 | 98.4 |
| ozone, greenhouse_gases | 1094 | 02-jan-2018 | 98.4 |
| particulates, fuels | 1103 | 18-mar-2018 | 98.4 |
| petrol, fossil_fuels | 1103 | 18-mar-2018 | 98.4 |
| petroleum, fuel | 1103 | 18-mar-2018 | 98.4 |
| petroleum_gas, gas | 1103 | 18-mar-2018 | 98.4 |
| platinum, minerals | 1095 | 18-jan-2018 | 98.4 |
| refining, gas | 1107 | 30-may-2018 | 98.4 |
| seawater, acid | 1095 | 18-jan-2018 | 98.4 |
| serotonin, substances | 1104 | 23-mar-2018 | 98.4 |
| silicon, atoms | 1095 | 18-jan-2018 | 98.4 |
| silicon, materials | 1095 | 18-jan-2018 | 98.4 |
| smog, pollutants | 1095 | 18-jan-2018 | 98.4 |
| solvents, carbon | 1094 | 02-jan-2018 | 98.4 |
| solvents, substances | 1095 | 18-jan-2018 | 98.4 |
| sulfur, dust | 1103 | 18-mar-2018 | 98.4 |
| sulfur, emission_reductions | 1095 | 18-jan-2018 | 98.4 |
| sulfur, materials | 1095 | 18-jan-2018 | 98.4 |
| sulfur, moisture | 1095 | 18-jan-2018 | 98.4 |
| sulfur_compounds, carbon | 1094 | 02-jan-2018 | 98.4 |
| sulphur, dioxide | 1103 | 18-mar-2018 | 98.4 |
| sulphur, acid | 1103 | 18-mar-2018 | 98.4 |
| total_carbon, emissions | 1094 | 02-jan-2018 | 98.4 |
| tritium, water | 1103 | 18-mar-2018 | 98.4 |
| tungsten, materials | 1095 | 18-jan-2018 | 98.4 |
| unburned_hydrocarbons, carbon | 1107 | 30-may-2018 | 98.4 |
| uranium, gas | 1103 | 18-mar-2018 | 98.4 |
| uranium, heavy_metals | 1095 | 18-jan-2018 | 98.4 |
| vapors, carbon | 1094 | 02-jan-2018 | 98.4 |
| volatile_organic_compound, emissions | 1095 | 18-jan-2018 | 98.4 |
| waste, fuels | 1103 | 18-mar-2018 | 98.4 |
| water, chemical_substances | 1104 | 23-mar-2018 | 98.4 |
| water, fertilizer | 1107 | 30-may-2018 | 98.4 |
| water, granules | 1104 | 23-mar-2018 | 98.4 |
| water, hydrogen_sulfide | 1104 | 23-mar-2018 | 98.4 |
| water, tritium | 1104 | 23-mar-2018 | 98.4 |
| water, waste_products | 1103 | 18-mar-2018 | 98.4 |
| water, fatty_acids | 1107 | 30-may-2018 | 98.4 |
| water_vapor, nitrogen | 1095 | 18-jan-2018 | 98.4 |
| acid, chemicals | 1095 | 18-jan-2018 | 98.4 |
| acid, sulphur | 1103 | 18-mar-2018 | 98.4 |
| sodium, carbon | 1095 | 18-jan-2018 | 98.4 |
| zinc, metal_ions | 1099 | 29-jan-2018 | 98.4 |
| dioxide, hydrocarbons | 601 | 25-jun-2012 | 98.4 |
| oxide, nitrogen | 655 | 02-nov-2012 | 98.4 |
| emissions, carbon | 1103 | 18-mar-2018 | 98.4 |
| water, particulates | 1103 | 18-mar-2018 | 98.3 |
| fuels, harmful_emissions | 1103 | 18-mar-2018 | 98.1 |
| fuels, pollutants | 1103 | 18-mar-2018 | 98.0 |
| carbon, raw_materials | 1066 | 15-jul-2017 | 98.0 |
| emissions, gas | 1103 | 18-mar-2018 | 97.7 |
| matter, pollutants | 689 | 26-jan-2013 | 97.5 |
| fuel, carbon_dioxide | 1054 | 02-may-2017 | 97.3 |
| carbon, oxide_emissions | 602 | 27-jun-2012 | 97.2 |
| carbon, unburned_hydrocarbons | 1107 | 30-may-2018 | 97.1 |
| dioxide, waste_products | 1100 | 02-feb-2018 | 97.1 |
| acetylcholine, chemicals | 1095 | 18-jan-2018 | 96.9 |
| acid_rain, pollutants | 1095 | 18-jan-2018 | 96.9 |
| air_pollutants, emissions | 1107 | 30-may-2018 | 96.9 |
| air_quality, emissions | 1096 | 19-jan-2018 | 96.9 |
| air_toxics, emissions | 1095 | 18-jan-2018 | 96.9 |
| air_toxics, pollutants | 1095 | 18-jan-2018 | 96.9 |
| ammonium, water | 1103 | 18-mar-2018 | 96.9 |
| antimony, heavy_metals | 1096 | 19-jan-2018 | 96.9 |
| arsenic, carbon | 1095 | 18-jan-2018 | 96.9 |
| atoms, fluorine | 1107 | 30-may-2018 | 96.9 |
| barium, heavy_metals | 1095 | 18-jan-2018 | 96.9 |
| benzene, compounds | 1095 | 18-jan-2018 | 96.9 |
| beryllium, substances | 1095 | 18-jan-2018 | 96.9 |
| boron, minerals | 1095 | 18-jan-2018 | 96.9 |
| boron, water | 1103 | 18-mar-2018 | 96.9 |
| butane, gases | 1098 | 22-jan-2018 | 96.9 |
| carbon, action | 1095 | 18-jan-2018 | 96.9 |
| carbon, analysis | 1095 | 18-jan-2018 | 96.9 |
| carbon, catalyst | 1095 | 18-jan-2018 | 96.9 |
| carbon, constituent | 1095 | 18-jan-2018 | 96.9 |
| carbon, crystals | 1095 | 18-jan-2018 | 96.9 |
| carbon, diesel_fuel | 1095 | 18-jan-2018 | 96.9 |
| carbon, dust | 1103 | 18-mar-2018 | 96.9 |
| carbon, jet_fuel | 1095 | 18-jan-2018 | 96.9 |
| carbon, layer | 1094 | 02-jan-2018 | 96.9 |
| carbon, monitoring | 1096 | 19-jan-2018 | 96.9 |
| carbon, particulate_matter | 1094 | 02-jan-2018 | 96.9 |
| carbon, solvent | 1095 | 18-jan-2018 | 96.9 |
| carbon, starch | 1095 | 18-jan-2018 | 96.9 |
| carbon, vegetable_oil | 1095 | 18-jan-2018 | 96.9 |
| carbon, human | 1108 | 11-jun-2018 | 96.9 |
| carbon_compounds, carbon | 1094 | 02-jan-2018 | 96.9 |
| carbon_dioxide, hydrogen | 1097 | 20-jan-2018 | 96.9 |
| carbon_dioxide_levels, fuels | 1103 | 18-mar-2018 | 96.9 |
| carbon_gases, fuels | 1103 | 18-mar-2018 | 96.9 |
| carbon_monoxide, sulphur | 1103 | 18-mar-2018 | 96.9 |
| catalyst, carbon | 1095 | 18-jan-2018 | 96.9 |
| chemicals, emissions | 1096 | 19-jan-2018 | 96.9 |
| chemical_compounds, hydrogen | 1103 | 18-mar-2018 | 96.9 |
| chlorine, chlorite | 1103 | 18-mar-2018 | 96.9 |
| chlorine, products | 1103 | 18-mar-2018 | 96.9 |
| chlorine, systems | 1095 | 18-jan-2018 | 96.9 |
| chromium, compounds | 1095 | 18-jan-2018 | 96.9 |
| coal, natural_gas | 1103 | 18-mar-2018 | 96.9 |
| companies, carbon | 1111 | 06-jul-2018 | 96.9 |
| compounds, fluorine | 1103 | 18-mar-2018 | 96.9 |
| condensate, gas | 1103 | 18-mar-2018 | 96.9 |
| copper, ions | 1095 | 18-jan-2018 | 96.9 |
| copper, raw_materials | 1095 | 18-jan-2018 | 96.9 |
| crude_oil, fuels | 1103 | 18-mar-2018 | 96.9 |
| cyanide, materials | 1095 | 18-jan-2018 | 96.9 |
| cyanide, substances | 1096 | 19-jan-2018 | 96.9 |
| degradation, fuels | 1103 | 18-mar-2018 | 96.9 |
| diesel_oil, fuels | 1103 | 18-mar-2018 | 96.9 |
| dioxide, carbons | 1096 | 19-jan-2018 | 96.9 |
| dioxide, chemical_reactions | 1096 | 19-jan-2018 | 96.9 |
| dioxide, crude_oil | 1103 | 18-mar-2018 | 96.9 |
| dioxide, formaldehyde | 1099 | 29-jan-2018 | 96.9 |
| dioxide, green_house_gas | 1107 | 30-may-2018 | 96.9 |
| dioxide, inorganic_carbon | 1095 | 18-jan-2018 | 96.9 |
| dioxide, inorganic_compounds | 1107 | 30-may-2018 | 96.9 |
| dioxide, inorganic_substances | 1103 | 18-mar-2018 | 96.9 |
| dioxide, intermediates | 1107 | 30-may-2018 | 96.9 |
| dioxide, molecule | 1095 | 18-jan-2018 | 96.9 |
| dioxide, oceans | 1097 | 20-jan-2018 | 96.9 |
| dioxide, particulate | 1107 | 30-may-2018 | 96.9 |
| dioxide, particulate_matter | 1107 | 30-may-2018 | 96.9 |
| dioxide, petrol | 1103 | 18-mar-2018 | 96.9 |
| dioxide, pollutant_gases | 1107 | 30-may-2018 | 96.9 |
| dioxide, polymers | 1107 | 30-may-2018 | 96.9 |
| dioxide, power_plant_pollutants | 1107 | 30-may-2018 | 96.9 |
| dioxide, pyruvic_acid | 1107 | 30-may-2018 | 96.9 |
| dioxide, toxic_fumes | 1107 | 30-may-2018 | 96.9 |
| dioxide, sodium | 1107 | 30-may-2018 | 96.9 |
| dioxin, gas | 1103 | 18-mar-2018 | 96.9 |
| dioxins, compounds | 1095 | 18-jan-2018 | 96.9 |
| dioxins, gases | 1098 | 22-jan-2018 | 96.9 |
| dopamine, feel_good_chemicals | 1100 | 02-feb-2018 | 96.9 |
| emissions, study | 1095 | 18-jan-2018 | 96.9 |
| emissions, water | 1107 | 30-may-2018 | 96.9 |
| ethylene, gas | 1103 | 18-mar-2018 | 96.9 |
| exhaust_gases, carbon | 1095 | 18-jan-2018 | 96.9 |
| fertilizers, carbon | 1095 | 18-jan-2018 | 96.9 |
| fewer_greenhouse_gas_emissions, fuels | 1103 | 18-mar-2018 | 96.9 |
| fluorine, water | 1103 | 18-mar-2018 | 96.9 |
| fossil_fuel, emissions | 1096 | 19-jan-2018 | 96.9 |
| fuel, petroleum | 1103 | 18-mar-2018 | 96.9 |
| fuels, chemicals | 1103 | 18-mar-2018 | 96.9 |
| fuels, excess_carbon | 1103 | 18-mar-2018 | 96.9 |
| fuels, methane | 1103 | 18-mar-2018 | 96.9 |
| fuels, petroleum | 1103 | 18-mar-2018 | 96.9 |
| fuels, sulphur | 1103 | 18-mar-2018 | 96.9 |
| gas, butane | 1107 | 30-may-2018 | 96.9 |
| gas, by_products | 1107 | 30-may-2018 | 96.9 |
| gas, chemicals | 1103 | 18-mar-2018 | 96.9 |
| gas, gasoline | 1103 | 18-mar-2018 | 96.9 |
| gas, inert_gas | 1107 | 30-may-2018 | 96.9 |
| gas, lubricants | 1107 | 30-may-2018 | 96.9 |
| gas, monoxide | 1104 | 23-mar-2018 | 96.9 |
| gas, naphtha | 1104 | 23-mar-2018 | 96.9 |
| gas, substances | 1107 | 30-may-2018 | 96.9 |
| gases, monitoring | 1098 | 22-jan-2018 | 96.9 |
| gases, ozone | 1099 | 29-jan-2018 | 96.9 |
| gasoline, liquids | 1095 | 18-jan-2018 | 96.9 |
| glass, silicon | 1097 | 20-jan-2018 | 96.9 |
| greenhouse_gas, gas | 1103 | 18-mar-2018 | 96.9 |
| harmful_gases, emissions | 1103 | 18-mar-2018 | 96.9 |
| harmful_greenhouse_gases, carbon | 1095 | 18-jan-2018 | 96.9 |
| helium, inert_gas | 1095 | 18-jan-2018 | 96.9 |
| hydrocarbon, carbon | 1095 | 18-jan-2018 | 96.9 |
| hydrocarbon, fuels | 1103 | 18-mar-2018 | 96.9 |
| hydrocarbons, materials | 1095 | 18-jan-2018 | 96.9 |
| hydrocarbons, molecules | 1095 | 18-jan-2018 | 96.9 |
| hydrogen, chemical_compound | 1096 | 19-jan-2018 | 96.9 |
| hydrogen, methane | 1097 | 20-jan-2018 | 96.9 |
| hydrogen, molecule | 1096 | 19-jan-2018 | 96.9 |
| hydrogen, volatile_organic_compounds | 1095 | 18-jan-2018 | 96.9 |
| hydrogen_chloride, sulfur | 1096 | 19-jan-2018 | 96.9 |
| hydrogen_peroxide, hydrogen | 1107 | 30-may-2018 | 96.9 |
| hydrogen_sulfide, emissions | 1095 | 18-jan-2018 | 96.9 |
| hydrogen_sulphide, carbon | 1095 | 18-jan-2018 | 96.9 |
| iron, chemicals | 1096 | 19-jan-2018 | 96.9 |
| iron, crystals | 1095 | 18-jan-2018 | 96.9 |
| iron, forms | 1095 | 18-jan-2018 | 96.9 |
| iron, hematite | 1095 | 18-jan-2018 | 96.9 |
| iron, solution | 1107 | 30-may-2018 | 96.9 |
| jet_fuel, products | 1103 | 18-mar-2018 | 96.9 |
| kerosene, liquids | 1097 | 20-jan-2018 | 96.9 |
| kerosene, substances | 1096 | 19-jan-2018 | 96.9 |
| lead, minerals | 1095 | 18-jan-2018 | 96.9 |
| lead, nitrogen | 1097 | 20-jan-2018 | 96.9 |
| lead, acid | 1095 | 18-jan-2018 | 96.9 |
| magnesium, compounds | 1095 | 18-jan-2018 | 96.9 |
| magnesium, heavy_metals | 1095 | 18-jan-2018 | 96.9 |
| magnesium, substances | 1095 | 18-jan-2018 | 96.9 |
| manganese, metals | 1095 | 18-jan-2018 | 96.9 |
| materials, compounds | 1097 | 20-jan-2018 | 96.9 |
| materials, substances | 1096 | 19-jan-2018 | 96.9 |
| mercury, dangerous_substances | 1096 | 19-jan-2018 | 96.9 |
| mercury_vapor, gas | 1103 | 18-mar-2018 | 96.9 |
| methane, gas_emissions | 1095 | 18-jan-2018 | 96.9 |
| methanol, fuel | 1096 | 19-jan-2018 | 96.9 |
| monoxide, biomass | 1096 | 19-jan-2018 | 96.9 |
| monoxide, chemical_compounds | 1095 | 18-jan-2018 | 96.9 |
| monoxide, harmful_gases | 1103 | 18-mar-2018 | 96.9 |
| monoxide, matter | 1095 | 18-jan-2018 | 96.9 |
| natural_gas, chemicals | 1103 | 18-mar-2018 | 96.9 |
| natural_gas, production | 1104 | 23-mar-2018 | 96.9 |
| neon, gas | 1103 | 18-mar-2018 | 96.9 |
| nickel, minerals | 1103 | 18-mar-2018 | 96.9 |
| nitric_oxide, emissions | 1096 | 19-jan-2018 | 96.9 |
| nitrogen, atoms | 1096 | 19-jan-2018 | 96.9 |
| nitrogen, dust | 1103 | 18-mar-2018 | 96.9 |
| nitrogen, lead | 1095 | 18-jan-2018 | 96.9 |
| nitrogen, monoxide | 1095 | 18-jan-2018 | 96.9 |
| nitrogen, nitric_acid | 1095 | 18-jan-2018 | 96.9 |
| nitrogen_dioxide, sulfur | 1096 | 19-jan-2018 | 96.9 |
| nitrogen_gas, carbon | 1095 | 18-jan-2018 | 96.9 |
| nitrogen_oxide, nitrogen | 1095 | 18-jan-2018 | 96.9 |
| nitrogen_oxide, sulfur | 1095 | 18-jan-2018 | 96.9 |
| nitrogen_oxides, compounds | 1095 | 18-jan-2018 | 96.9 |
| nitrous_oxide, fuels | 1103 | 18-mar-2018 | 96.9 |
| norepinephrine, amines | 1095 | 18-jan-2018 | 96.9 |
| norepinephrine, neurotransmitter | 1096 | 19-jan-2018 | 96.9 |
| norepinephrine, substances | 1097 | 20-jan-2018 | 96.9 |
| oil, fossil_fuel | 1095 | 18-jan-2018 | 96.9 |
| oil, materials | 1094 | 02-jan-2018 | 96.9 |
| oil, raw_materials | 1095 | 18-jan-2018 | 96.9 |
| oil, sources | 1098 | 22-jan-2018 | 96.9 |
| organic_compounds, emissions | 1097 | 20-jan-2018 | 96.9 |
| organic_compounds, materials | 1096 | 19-jan-2018 | 96.9 |
| oxide, harmful_emissions | 1107 | 30-may-2018 | 96.9 |
| oxide, substances | 1107 | 30-may-2018 | 96.9 |
| oxides, corrosive_fumes | 1103 | 18-mar-2018 | 96.9 |
| oxides, fuels | 1103 | 18-mar-2018 | 96.9 |
| oxygen, materials | 1096 | 19-jan-2018 | 96.9 |
| oxygen_gas, carbon | 1096 | 19-jan-2018 | 96.9 |
| ozone, trace_gases | 1095 | 18-jan-2018 | 96.9 |
| petroleum, emissions | 1103 | 18-mar-2018 | 96.9 |
| phosphorus, compounds | 1095 | 18-jan-2018 | 96.9 |
| plastics, fuels | 1103 | 18-mar-2018 | 96.9 |
| platinum, heavy_metals | 1095 | 18-jan-2018 | 96.9 |
| products, fuels | 1103 | 18-mar-2018 | 96.9 |
| propane, carbon | 1095 | 18-jan-2018 | 96.9 |
| quartz, silicon | 1097 | 20-jan-2018 | 96.9 |
| rubber, materials | 1096 | 19-jan-2018 | 96.9 |
| silica, materials | 1095 | 18-jan-2018 | 96.9 |
| silver, raw_materials | 1096 | 19-jan-2018 | 96.9 |
| soot, air_pollutants | 1095 | 18-jan-2018 | 96.9 |
| starch, carbon | 1095 | 18-jan-2018 | 96.9 |
| sulfate, water | 1103 | 18-mar-2018 | 96.9 |
| sulfates, sulfur | 1095 | 18-jan-2018 | 96.9 |
| sulfur, dioxide | 1095 | 18-jan-2018 | 96.9 |
| sulfur, hydrogen | 1096 | 19-jan-2018 | 96.9 |
| sulfur, monoxide | 1095 | 18-jan-2018 | 96.9 |
| sulfur, sulfate_aerosols | 1095 | 18-jan-2018 | 96.9 |
| sulfur, sulfur_dioxide | 1095 | 18-jan-2018 | 96.9 |
| sulfuric_acid, hydrogen | 1104 | 23-mar-2018 | 96.9 |
| sulphur, hydrocarbons | 1103 | 18-mar-2018 | 96.9 |
| synthesis, gas | 1103 | 18-mar-2018 | 96.9 |
| thallium, heavy_metals | 1096 | 19-jan-2018 | 96.9 |
| thallium, metals | 1096 | 19-jan-2018 | 96.9 |
| titanium_dioxide, silicon | 1103 | 18-mar-2018 | 96.9 |
| trioxide, sulfur | 1099 | 29-jan-2018 | 96.9 |
| unburned_hydrocarbons, emissions | 1107 | 30-may-2018 | 96.9 |
| vanadium, heavy_metals | 1095 | 18-jan-2018 | 96.9 |
| vanadium, metals | 1095 | 18-jan-2018 | 96.9 |
| volatile_organic_compounds, materials | 1096 | 19-jan-2018 | 96.9 |
| water, biomass | 1107 | 30-may-2018 | 96.9 |
| water, organic_material | 1104 | 23-mar-2018 | 96.9 |
| water, sulfuric_acid | 1107 | 30-may-2018 | 96.9 |
| water, toxic_contaminants | 1104 | 23-mar-2018 | 96.9 |
| water, phosphate | 1104 | 23-mar-2018 | 96.9 |
| water_vapor, acid | 1094 | 02-jan-2018 | 96.9 |
| water_vapour, acid | 1097 | 20-jan-2018 | 96.9 |
| acid, lead | 1103 | 18-mar-2018 | 96.9 |
| acid, moisture | 1103 | 18-mar-2018 | 96.9 |
| acid, water_vapor | 1103 | 18-mar-2018 | 96.9 |
| melatonin, hormones | 1096 | 19-jan-2018 | 96.9 |
| sodium, products | 1103 | 18-mar-2018 | 96.9 |
| sodium, sodium_hydroxide | 1096 | 19-jan-2018 | 96.9 |
| zinc, compounds | 1095 | 18-jan-2018 | 96.9 |
| zinc, layer | 1095 | 18-jan-2018 | 96.9 |
| monoxide, oxygen | 601 | 25-jun-2012 | 96.8 |
| water, aerosols | 1104 | 23-mar-2018 | 96.8 |
| water, chlorine_levels | 1103 | 18-mar-2018 | 96.7 |
| mercury, toxic_metals | 1107 | 30-may-2018 | 96.7 |
| water, oxides | 1103 | 18-mar-2018 | 96.6 |
| dry_ice, carbon | 709 | 10-mar-2013 | 96.6 |
| carbon, gases | 1098 | 22-jan-2018 | 96.6 |
| xenon, gases | 1098 | 22-jan-2018 | 96.5 |
| methane, sources | 1098 | 22-jan-2018 | 96.4 |
| carbon_dioxide, fuel_combustion | 1045 | 30-mar-2017 | 96.4 |
| dioxide, carbon_monoxide | 655 | 02-nov-2012 | 96.0 |
| hydrogen, gasses | 1049 | 16-apr-2017 | 95.6 |
| sulfur, fumes | 1045 | 30-mar-2017 | 95.5 |
| emissions, sulfur | 659 | 13-nov-2012 | 95.3 |
| emissions, gases | 1098 | 22-jan-2018 | 95.3 |
| gas, sulfur | 1103 | 18-mar-2018 | 94.9 |
| hydrogen, sources | 1098 | 22-jan-2018 | 94.8 |
| water, nitrogen_oxides | 1103 | 18-mar-2018 | 94.5 |
| gasses, sulfur | 1049 | 16-apr-2017 | 94.4 |
| sulfur, gasses | 1049 | 16-apr-2017 | 94.3 |
| water, barium | 1103 | 18-mar-2018 | 94.2 |
| dioxide, additives | 1096 | 19-jan-2018 | 94.0 |
| uranium, fuel | 1054 | 02-may-2017 | 93.8 |
| acetone, solvents | 1096 | 19-jan-2018 | 93.8 |
| acetylene, gas | 1104 | 23-mar-2018 | 93.8 |
| acids, gas | 1107 | 30-may-2018 | 93.8 |
| acids, substances | 1095 | 18-jan-2018 | 93.8 |
| acid_rain, carbon | 1096 | 19-jan-2018 | 93.8 |
| adrenaline, chemicals | 1107 | 30-may-2018 | 93.8 |
| aerosols, gases | 1104 | 23-mar-2018 | 93.8 |
| air_quality, fuels | 1103 | 18-mar-2018 | 93.8 |
| alcohol, products | 1107 | 30-may-2018 | 93.8 |
| alcohol, solution | 1105 | 31-mar-2018 | 93.8 |
| alkaline, solutions | 1097 | 20-jan-2018 | 93.8 |
| alloys, metals | 1107 | 30-may-2018 | 93.8 |
| ammonia, sulphur | 1103 | 18-mar-2018 | 93.8 |
| ammonia, toxic_gases | 1099 | 29-jan-2018 | 93.8 |
| anandamide, neurotransmitters | 1097 | 20-jan-2018 | 93.8 |
| argon, noble_gases | 1115 | 03-sep-2018 | 93.8 |
| ash, fuels | 1103 | 18-mar-2018 | 93.8 |
| atom, chlorine | 1104 | 23-mar-2018 | 93.8 |
| atom, one_carbon | 1107 | 30-may-2018 | 93.8 |
| baking_soda, carbon | 1103 | 18-mar-2018 | 93.8 |
| benzene, water | 1103 | 18-mar-2018 | 93.8 |
| beryllium, compounds | 1097 | 20-jan-2018 | 93.8 |
| biodiesel, alternative_fuels | 1099 | 29-jan-2018 | 93.8 |
| biomass, fuel | 1096 | 19-jan-2018 | 93.8 |
| black_carbon, pollutants | 1097 | 20-jan-2018 | 93.8 |
| bromine, chemicals | 1096 | 19-jan-2018 | 93.8 |
| butane, gas | 1104 | 23-mar-2018 | 93.8 |
| cadmium, cadmium_selenide | 1096 | 19-jan-2018 | 93.8 |
| cadmium, heavy_metals | 1096 | 19-jan-2018 | 93.8 |
| cadmium, particles | 1096 | 19-jan-2018 | 93.8 |
| cadmium, trace_metals | 1100 | 02-feb-2018 | 93.8 |
| calcium, carbon | 1096 | 19-jan-2018 | 93.8 |
| carbon, acetic_acid | 1095 | 18-jan-2018 | 93.8 |
| carbon, auto_emissions | 1095 | 18-jan-2018 | 93.8 |
| carbon, carbon_compounds | 1095 | 18-jan-2018 | 93.8 |
| carbon, fertilizers | 1095 | 18-jan-2018 | 93.8 |
| carbon, glass | 1096 | 19-jan-2018 | 93.8 |
| carbon, isotopes | 1095 | 18-jan-2018 | 93.8 |
| carbon, oxygen_gas | 1096 | 19-jan-2018 | 93.8 |
| carbon, pesticides | 1096 | 19-jan-2018 | 93.8 |
| carbon, reaction_mixture | 1096 | 19-jan-2018 | 93.8 |
| carbon, sewage | 1096 | 19-jan-2018 | 93.8 |
| carbon, solvents | 1095 | 18-jan-2018 | 93.8 |
| carbon, study | 1096 | 19-jan-2018 | 93.8 |
| carbon, sulfur_compounds | 1094 | 02-jan-2018 | 93.8 |
| carbon, suppliers | 1096 | 19-jan-2018 | 93.8 |
| carbon, waste_gases | 1095 | 18-jan-2018 | 93.8 |
| carbon_dioxide, air_pollutants | 1097 | 20-jan-2018 | 93.8 |
| carbon_dioxide, byproducts | 1098 | 22-jan-2018 | 93.8 |
| carbon_dioxide, by_products | 1097 | 20-jan-2018 | 93.8 |
| carbon_dioxide, fuel_plants | 1104 | 23-mar-2018 | 93.8 |
| carbon_dioxide, fuel_use | 1096 | 19-jan-2018 | 93.8 |
| carbon_dioxide, harmful_gases | 1103 | 18-mar-2018 | 93.8 |
| carbon_dioxide, high_concentrations | 1097 | 20-jan-2018 | 93.8 |
| carbon_dioxide_emissions, fuel | 1097 | 20-jan-2018 | 93.8 |
| carbon_dioxide_emissions, gases | 1098 | 22-jan-2018 | 93.8 |
| carbon_monoxide, toxic_gases | 1099 | 29-jan-2018 | 93.8 |
| chemicals, chlorine | 1107 | 30-may-2018 | 93.8 |
| chemicals, fumes | 1107 | 30-may-2018 | 93.8 |
| chemicals, substances | 1096 | 19-jan-2018 | 93.8 |
| chemicals, sulfur | 1096 | 19-jan-2018 | 93.8 |
| chemical_compound, hydrogen | 1107 | 30-may-2018 | 93.8 |
| chemical_substances, carbon | 1095 | 18-jan-2018 | 93.8 |
| chloride, chlorine | 1104 | 23-mar-2018 | 93.8 |
| chlorine, chloride | 1107 | 30-may-2018 | 93.8 |
| chlorine, disinfectants | 1103 | 18-mar-2018 | 93.8 |
| chlorine, materials | 1097 | 20-jan-2018 | 93.8 |
| chlorine, nitrogen | 1096 | 19-jan-2018 | 93.8 |
| chlorine, production | 1097 | 20-jan-2018 | 93.8 |
| chlorofluorocarbons, carbon | 1096 | 19-jan-2018 | 93.8 |
| chromium, metal_ions | 1099 | 29-jan-2018 | 93.8 |
| chromium, pollutants | 1099 | 29-jan-2018 | 93.8 |
| cleaner_fuels, gas | 1103 | 18-mar-2018 | 93.8 |
| coal, fossil_fuel | 1097 | 20-jan-2018 | 93.8 |
| compounds, gasses | 1103 | 18-mar-2018 | 93.8 |
| compounds, harmful_chemicals | 1103 | 18-mar-2018 | 93.8 |
| compounds, oxygen | 1107 | 30-may-2018 | 93.8 |
| compounds, silicon | 1099 | 29-jan-2018 | 93.8 |
| copper, carbon | 1096 | 19-jan-2018 | 93.8 |
| copper, chemicals | 1096 | 19-jan-2018 | 93.8 |
| copper, gas | 1103 | 18-mar-2018 | 93.8 |
| copper, metal_ions | 1099 | 29-jan-2018 | 93.8 |
| diesel, carbon | 1096 | 19-jan-2018 | 93.8 |
| diesel, hydrocarbons | 1098 | 22-jan-2018 | 93.8 |
| diesel_fuel, fuel | 1096 | 19-jan-2018 | 93.8 |
| diesel_fuel, products | 1103 | 18-mar-2018 | 93.8 |
| dioxide, atmospheric_constituents | 1107 | 30-may-2018 | 93.8 |
| dioxide, beverages | 1099 | 29-jan-2018 | 93.8 |
| dioxide, biodiesel | 1107 | 30-may-2018 | 93.8 |
| dioxide, combustion_by_products | 1107 | 30-may-2018 | 93.8 |
| dioxide, companies | 1111 | 06-jul-2018 | 93.8 |
| dioxide, conventional_pollutants | 1103 | 18-mar-2018 | 93.8 |
| dioxide, copper | 1107 | 30-may-2018 | 93.8 |
| dioxide, dangerous_gases | 1107 | 30-may-2018 | 93.8 |
| dioxide, environmental_pollutants | 1107 | 30-may-2018 | 93.8 |
| dioxide, free_oxygen | 1104 | 23-mar-2018 | 93.8 |
| dioxide, important_greenhouse_gases | 1103 | 18-mar-2018 | 93.8 |
| dioxide, industrial_pollutants | 1104 | 23-mar-2018 | 93.8 |
| dioxide, key_greenhouse_gases | 1097 | 20-jan-2018 | 93.8 |
| dioxide, lignin | 1107 | 30-may-2018 | 93.8 |
| dioxide, major_air_pollutants | 1107 | 30-may-2018 | 93.8 |
| dioxide, malt | 1103 | 18-mar-2018 | 93.8 |
| dioxide, nitrogen_compounds | 1107 | 30-may-2018 | 93.8 |
| dioxide, powder | 1107 | 30-may-2018 | 93.8 |
| dioxide, power_plant | 1107 | 30-may-2018 | 93.8 |
| dioxide, power_plant_emissions | 1107 | 30-may-2018 | 93.8 |
| dioxide, preservatives | 1103 | 18-mar-2018 | 93.8 |
| dioxide, pressure | 1096 | 19-jan-2018 | 93.8 |
| dioxide, simple_compounds | 1103 | 18-mar-2018 | 93.8 |
| dioxide, sodium_bicarbonate | 1107 | 30-may-2018 | 93.8 |
| dioxide, tailpipe_emissions | 1107 | 30-may-2018 | 93.8 |
| dioxide, toxic_air_pollutants | 1107 | 30-may-2018 | 93.8 |
| dioxide, waste_gases | 1107 | 30-may-2018 | 93.8 |
| dioxides, sulfur | 1107 | 30-may-2018 | 93.8 |
| dioxin, gases | 1098 | 22-jan-2018 | 93.8 |
| dioxins, emissions | 1096 | 19-jan-2018 | 93.8 |
| dioxins, gas | 1103 | 18-mar-2018 | 93.8 |
| disulfide, carbon | 1096 | 19-jan-2018 | 93.8 |
| dopamine, chemical_messengers | 1099 | 29-jan-2018 | 93.8 |
| dopamine, feel_good_neurotransmitters | 1099 | 29-jan-2018 | 93.8 |
| dopamine, important_neurotransmitters | 1100 | 02-feb-2018 | 93.8 |
| dust, compounds | 1103 | 18-mar-2018 | 93.8 |
| emissions, more_carbon | 1107 | 30-may-2018 | 93.8 |
| emissions, area | 1114 | 25-aug-2018 | 93.8 |
| emission_reductions, sulfur | 1103 | 18-mar-2018 | 93.8 |
| epinephrine, stress_hormones | 1097 | 20-jan-2018 | 93.8 |
| ethane, gases | 1099 | 29-jan-2018 | 93.8 |
| excess_carbon, water | 1103 | 18-mar-2018 | 93.8 |
| fertilizer, water | 1107 | 30-may-2018 | 93.8 |
| fertilizers, fuels | 1103 | 18-mar-2018 | 93.8 |
| fluoride, chemicals | 1100 | 02-feb-2018 | 93.8 |
| fluorine, atoms | 1096 | 19-jan-2018 | 93.8 |
| fluorine, chemicals | 1096 | 19-jan-2018 | 93.8 |
| fluorine, gas | 1103 | 18-mar-2018 | 93.8 |
| fluorine, gases | 1099 | 29-jan-2018 | 93.8 |
| formate, carbon | 1096 | 19-jan-2018 | 93.8 |
| fossil_fuel, gas | 1103 | 18-mar-2018 | 93.8 |
| fuel, carbon_emissions | 1099 | 29-jan-2018 | 93.8 |
| fuel, propane | 1107 | 30-may-2018 | 93.8 |
| fuel, sources | 1098 | 22-jan-2018 | 93.8 |
| fuels, air_emissions | 1107 | 30-may-2018 | 93.8 |
| fuels, ash | 1103 | 18-mar-2018 | 93.8 |
| fuels, carbon_pollution | 1103 | 18-mar-2018 | 93.8 |
| fuels, excess_carbon_dioxide | 1103 | 18-mar-2018 | 93.8 |
| fuels, fumes | 1103 | 18-mar-2018 | 93.8 |
| fuels, heat_trapping_carbon | 1103 | 18-mar-2018 | 93.8 |
| fuels, hydrocarbon | 1103 | 18-mar-2018 | 93.8 |
| fuels, main_greenhouse_gas | 1103 | 18-mar-2018 | 93.8 |
| fuels, particulates | 1103 | 18-mar-2018 | 93.8 |
| fumes, silicon | 1096 | 19-jan-2018 | 93.8 |
| gas, acetylene | 1104 | 23-mar-2018 | 93.8 |
| gas, coal_gas | 1107 | 30-may-2018 | 93.8 |
| gas, compressed_air | 1104 | 23-mar-2018 | 93.8 |
| gas, diesel_oil | 1104 | 23-mar-2018 | 93.8 |
| gas, ethylene | 1104 | 23-mar-2018 | 93.8 |
| gas, exports | 1104 | 23-mar-2018 | 93.8 |
| gas, fuel_sources | 1103 | 18-mar-2018 | 93.8 |
| gas, nitrogen_oxide | 1104 | 23-mar-2018 | 93.8 |
| gas, synthesis | 1104 | 23-mar-2018 | 93.8 |
| gas, troposphere | 1104 | 23-mar-2018 | 93.8 |
| gas, xenon | 1107 | 30-may-2018 | 93.8 |
| gas, chemical_products | 1104 | 23-mar-2018 | 93.8 |
| gases, diesel | 1107 | 30-may-2018 | 93.8 |
| gases, fewer_emissions | 1099 | 29-jan-2018 | 93.8 |
| gases, materials | 1098 | 22-jan-2018 | 93.8 |
| gases, molecules | 1107 | 30-may-2018 | 93.8 |
| gases, much_carbon | 1106 | 21-may-2018 | 93.8 |
| gases, water_vapor | 1107 | 30-may-2018 | 93.8 |
| gas_emissions, management | 1099 | 29-jan-2018 | 93.8 |
| gas_emissions, methane | 1096 | 19-jan-2018 | 93.8 |
| gas_emissions, _ | 1096 | 19-jan-2018 | 93.8 |
| gas_production, carbon | 1103 | 18-mar-2018 | 93.8 |
| global_warming_gases, fuels | 1103 | 18-mar-2018 | 93.8 |
| global_warming_pollution, fuels | 1103 | 18-mar-2018 | 93.8 |
| grease, liquids | 1098 | 22-jan-2018 | 93.8 |
| greenhouse_gas, products | 1103 | 18-mar-2018 | 93.8 |
| greenhouse_gas_emissions, fuel | 1096 | 19-jan-2018 | 93.8 |
| green_house_gases, emissions | 1097 | 20-jan-2018 | 93.8 |
| ground_level_ozone, carbon | 1095 | 18-jan-2018 | 93.8 |
| halocarbons, carbon | 1097 | 20-jan-2018 | 93.8 |
| halocarbons, gases | 1107 | 30-may-2018 | 93.8 |
| harmful_chemicals, carbon | 1094 | 02-jan-2018 | 93.8 |
| harmful_emissions, fuel | 1103 | 18-mar-2018 | 93.8 |
| harmful_substances, carbon | 1107 | 30-may-2018 | 93.8 |
| heavy_metals, emissions | 1099 | 29-jan-2018 | 93.8 |
| hexane, solvents | 1096 | 19-jan-2018 | 93.8 |
| house_gases, emissions | 1096 | 19-jan-2018 | 93.8 |
| human_emissions, fuels | 1103 | 18-mar-2018 | 93.8 |
| hydrocarbons, carcinogenic_compounds | 1096 | 19-jan-2018 | 93.8 |
| hydrocarbons, hydrogen | 1109 | 16-jun-2018 | 93.8 |
| hydrocarbons, products | 1103 | 18-mar-2018 | 93.8 |
| hydrocarbons, sulphur | 1103 | 18-mar-2018 | 93.8 |
| hydrogen, acids | 1097 | 20-jan-2018 | 93.8 |
| hydrogen, carbon_monoxide | 1097 | 20-jan-2018 | 93.8 |
| hydrogen, isotopes | 1096 | 19-jan-2018 | 93.8 |
| hydrogen, layer | 1097 | 20-jan-2018 | 93.8 |
| hydrogen, moisture | 1096 | 19-jan-2018 | 93.8 |
| hydrogen, nitrogen | 1096 | 19-jan-2018 | 93.8 |
| hydrogen, oceans | 1096 | 19-jan-2018 | 93.8 |
| hydrogen, synthesis | 1096 | 19-jan-2018 | 93.8 |
| hydrogen, vapors | 1096 | 19-jan-2018 | 93.8 |
| hydrogen_cyanide, carbon | 1096 | 19-jan-2018 | 93.8 |
| hydrogen_gas, carbon | 1103 | 18-mar-2018 | 93.8 |
| hydrogen_sulfide, gasses | 1097 | 20-jan-2018 | 93.8 |
| hydrogen_sulfide, sulfur | 1096 | 19-jan-2018 | 93.8 |
| hydroxide, carbon | 1096 | 19-jan-2018 | 93.8 |
| hypochlorite, chlorine | 1096 | 19-jan-2018 | 93.8 |
| industries, carbon | 1107 | 30-may-2018 | 93.8 |
| inert_gas, gas | 1103 | 18-mar-2018 | 93.8 |
| iron, different_materials | 1103 | 18-mar-2018 | 93.8 |
| iron, layer | 1097 | 20-jan-2018 | 93.8 |
| iron, pipes | 1103 | 18-mar-2018 | 93.8 |
| isotopes, carbon | 1095 | 18-jan-2018 | 93.8 |
| kerosene, chemicals | 1096 | 19-jan-2018 | 93.8 |
| kerosene, materials | 1096 | 19-jan-2018 | 93.8 |
| kerosene, products | 1103 | 18-mar-2018 | 93.8 |
| layer, carbon | 1096 | 19-jan-2018 | 93.8 |
| lead, air_pollutants | 1096 | 19-jan-2018 | 93.8 |
| lead, lead_selenide | 1097 | 20-jan-2018 | 93.8 |
| lead, products | 1103 | 18-mar-2018 | 93.8 |
| less_greenhouse_gas, fuels | 1103 | 18-mar-2018 | 93.8 |
| lime, carbon | 1107 | 30-may-2018 | 93.8 |
| limestone, materials | 1096 | 19-jan-2018 | 93.8 |
| liquid, gases | 1104 | 23-mar-2018 | 93.8 |
| low_sulphur, emissions | 1097 | 20-jan-2018 | 93.8 |
| lubricants, gas | 1103 | 18-mar-2018 | 93.8 |
| main_greenhouse_gas, fuels | 1103 | 18-mar-2018 | 93.8 |
| materials, emissions | 1107 | 30-may-2018 | 93.8 |
| materials, fuels | 1103 | 18-mar-2018 | 93.8 |
| materials, hydrogen | 1109 | 16-jun-2018 | 93.8 |
| materials, silicon | 1096 | 19-jan-2018 | 93.8 |
| mercury, products | 1103 | 18-mar-2018 | 93.8 |
| methane, greenhouse_gasses | 1096 | 19-jan-2018 | 93.8 |
| methane, trace_gases | 1097 | 20-jan-2018 | 93.8 |
| methylmercury, metals | 1096 | 19-jan-2018 | 93.8 |
| moisture, sulphur | 1107 | 30-may-2018 | 93.8 |
| molecule, atoms | 1103 | 18-mar-2018 | 93.8 |
| monitoring, carbon | 1099 | 29-jan-2018 | 93.8 |
| monoxide, compound | 1107 | 30-may-2018 | 93.8 |
| monoxide, fireplace | 1107 | 30-may-2018 | 93.8 |
| monoxide, iron | 1096 | 19-jan-2018 | 93.8 |
| monoxide, kerosene | 1096 | 19-jan-2018 | 93.8 |
| monoxide, lead | 1096 | 19-jan-2018 | 93.8 |
| monoxide, n4_000_chemicals | 1096 | 19-jan-2018 | 93.8 |
| monoxide, oxide | 1107 | 30-may-2018 | 93.8 |
| monoxide, petrol | 1107 | 30-may-2018 | 93.8 |
| monoxide, water_vapor | 1096 | 19-jan-2018 | 93.8 |
| monoxide, acid | 1097 | 20-jan-2018 | 93.8 |
| much_carbon, gas | 1103 | 18-mar-2018 | 93.8 |
| natural_gas, fuel_sources | 1103 | 18-mar-2018 | 93.8 |
| nickel, particles | 1103 | 18-mar-2018 | 93.8 |
| nitrate, carbon | 1096 | 19-jan-2018 | 93.8 |
| nitric_oxide, gases | 1098 | 22-jan-2018 | 93.8 |
| nitric_oxides, sulfur | 1104 | 23-mar-2018 | 93.8 |
| nitrogen, carbon_dioxide | 1096 | 19-jan-2018 | 93.8 |
| nitrogen, forms | 1097 | 20-jan-2018 | 93.8 |
| nitrogen, hydrogen | 1096 | 19-jan-2018 | 93.8 |
| nitrogen, hydrogen_chloride | 1096 | 19-jan-2018 | 93.8 |
| nitrogen, nitrates | 1095 | 18-jan-2018 | 93.8 |
| nitrogen, nitric_oxide | 1095 | 18-jan-2018 | 93.8 |
| nitrogen, particle_pollution | 1097 | 20-jan-2018 | 93.8 |
| nitrogen, water_vapor | 1096 | 19-jan-2018 | 93.8 |
| nitrogen, water_vapour | 1096 | 19-jan-2018 | 93.8 |
| nitrogen_dioxide, emissions | 1096 | 19-jan-2018 | 93.8 |
| nitrogen_dioxide, gas | 1103 | 18-mar-2018 | 93.8 |
| nitrogen_oxide, air_pollutants | 1097 | 20-jan-2018 | 93.8 |
| norepinephrine, key_neurotransmitters | 1097 | 20-jan-2018 | 93.8 |
| norepinephrine, stress_hormones | 1096 | 19-jan-2018 | 93.8 |
| norepinephrine, two_neurotransmitters | 1099 | 29-jan-2018 | 93.8 |
| organic_compounds, gas | 1107 | 30-may-2018 | 93.8 |
| organic_compounds, sulphur | 1103 | 18-mar-2018 | 93.8 |
| organic_pollutants, nitrogen | 1107 | 30-may-2018 | 93.8 |
| oxide, air_pollutants | 1096 | 19-jan-2018 | 93.8 |
| oxide, hydrogen | 1107 | 30-may-2018 | 93.8 |
| oxide, oxides | 1103 | 18-mar-2018 | 93.8 |
| oxides, hydrogen | 1107 | 30-may-2018 | 93.8 |
| oxides, power_plant_emissions | 1096 | 19-jan-2018 | 93.8 |
| oxygen, atmospheric_gases | 1099 | 29-jan-2018 | 93.8 |
| oxygen, liquid | 1096 | 19-jan-2018 | 93.8 |
| oxygen, monitoring | 1096 | 19-jan-2018 | 93.8 |
| oxygen, plasma | 1107 | 30-may-2018 | 93.8 |
| ozone, sulfur | 1097 | 20-jan-2018 | 93.8 |
| particles, compounds | 1096 | 19-jan-2018 | 93.8 |
| particles, fuel | 1096 | 19-jan-2018 | 93.8 |
| particle_pollution, nitrogen | 1103 | 18-mar-2018 | 93.8 |
| particulate, compounds | 1097 | 20-jan-2018 | 93.8 |
| particulate, sulfur | 1107 | 30-may-2018 | 93.8 |
| particulate_matter, compounds | 1096 | 19-jan-2018 | 93.8 |
| particulate_matter, fuels | 1103 | 18-mar-2018 | 93.8 |
| peroxide, chemicals | 1103 | 18-mar-2018 | 93.8 |
| pesticides, heavy_metals | 1096 | 19-jan-2018 | 93.8 |
| pesticides, solvents | 1096 | 19-jan-2018 | 93.8 |
| petroleum, hydrogen | 1103 | 18-mar-2018 | 93.8 |
| petroleum, materials | 1103 | 18-mar-2018 | 93.8 |
| petroleum, substances | 1103 | 18-mar-2018 | 93.8 |
| phenol, carbon | 1096 | 19-jan-2018 | 93.8 |
| phosphorus, chemicals | 1096 | 19-jan-2018 | 93.8 |
| plastics, carbon | 1096 | 19-jan-2018 | 93.8 |
| plastics, products | 1103 | 18-mar-2018 | 93.8 |
| pollutants, compounds | 1107 | 30-may-2018 | 93.8 |
| pollutants, production | 1103 | 18-mar-2018 | 93.8 |
| potassium, powder | 1097 | 20-jan-2018 | 93.8 |
| power_plants, carbon | 1107 | 30-may-2018 | 93.8 |
| pressure, gas | 1103 | 18-mar-2018 | 93.8 |
| production, natural_gas | 1104 | 23-mar-2018 | 93.8 |
| propane, materials | 1096 | 19-jan-2018 | 93.8 |
| serotonin, biogenic_amines | 1096 | 19-jan-2018 | 93.8 |
| serotonin, two_neurotransmitters | 1107 | 30-may-2018 | 93.8 |
| silicon, additives | 1096 | 19-jan-2018 | 93.8 |
| silicon, carbon | 1107 | 30-may-2018 | 93.8 |
| silicon, glass | 1096 | 19-jan-2018 | 93.8 |
| silicon, quartz | 1095 | 18-jan-2018 | 93.8 |
| silicon, titanium_dioxide | 1103 | 18-mar-2018 | 93.8 |
| silver, products | 1103 | 18-mar-2018 | 93.8 |
| silver, solution | 1097 | 20-jan-2018 | 93.8 |
| smog, gases | 1098 | 22-jan-2018 | 93.8 |
| solutions, solvents | 1104 | 23-mar-2018 | 93.8 |
| solvent, carbon | 1096 | 19-jan-2018 | 93.8 |
| solvent, solution | 1105 | 31-mar-2018 | 93.8 |
| sources, gases | 1103 | 18-mar-2018 | 93.8 |
| starches, carbon | 1107 | 30-may-2018 | 93.8 |
| steam, hydrogen | 1104 | 23-mar-2018 | 93.8 |
| strontium, water | 1107 | 30-may-2018 | 93.8 |
| substances, hydrogen | 1103 | 18-mar-2018 | 93.8 |
| substances, sulfur | 1096 | 19-jan-2018 | 93.8 |
| substances, sulphur | 1107 | 30-may-2018 | 93.8 |
| sulfide, compounds | 1099 | 29-jan-2018 | 93.8 |
| sulfur, fuel_combustion | 1096 | 19-jan-2018 | 93.8 |
| sulfur, gas_stream | 1096 | 19-jan-2018 | 93.8 |
| sulfur, nitrogen_dioxide | 1095 | 18-jan-2018 | 93.8 |
| sulfur, nitrogen_oxide | 1095 | 18-jan-2018 | 93.8 |
| sulfur, smog | 1095 | 18-jan-2018 | 93.8 |
| sulfuric_acid, chemicals | 1097 | 20-jan-2018 | 93.8 |
| sulfuric_acid, gas | 1103 | 18-mar-2018 | 93.8 |
| sulfur_dioxide, fuel_combustion | 1096 | 19-jan-2018 | 93.8 |
| sulfur_dioxide, harmful_gases | 1103 | 18-mar-2018 | 93.8 |
| sulfur_oxide, emissions | 1096 | 19-jan-2018 | 93.8 |
| sulphur, chemicals | 1103 | 18-mar-2018 | 93.8 |
| sulphur, moisture | 1103 | 18-mar-2018 | 93.8 |
| sulphur, nitrogen | 1103 | 18-mar-2018 | 93.8 |
| sulphur, organic_compounds | 1103 | 18-mar-2018 | 93.8 |
| sulphur_dioxide, air_pollutants | 1096 | 19-jan-2018 | 93.8 |
| sulphur_dioxide, fuels | 1103 | 18-mar-2018 | 93.8 |
| sulphur_oxides, carbon | 1096 | 19-jan-2018 | 93.8 |
| superior_fuel, emissions | 1096 | 19-jan-2018 | 93.8 |
| tin, minerals | 1097 | 20-jan-2018 | 93.8 |
| toluene, carbon | 1096 | 19-jan-2018 | 93.8 |
| toxic_fumes, carbon | 1103 | 18-mar-2018 | 93.8 |
| trihalomethane, water | 1103 | 18-mar-2018 | 93.8 |
| troposphere, gas | 1103 | 18-mar-2018 | 93.8 |
| tungsten, metals | 1097 | 20-jan-2018 | 93.8 |
| uranium, substances | 1097 | 20-jan-2018 | 93.8 |
| vegetable_oil, carbon | 1097 | 20-jan-2018 | 93.8 |
| vinyl_chloride, chemicals | 1096 | 19-jan-2018 | 93.8 |
| wastes, substances | 1096 | 19-jan-2018 | 93.8 |
| water, bicarbonate | 1107 | 30-may-2018 | 93.8 |
| water, composition | 1107 | 30-may-2018 | 93.8 |
| water, disinfection_byproducts | 1108 | 11-jun-2018 | 93.8 |
| water, formaldehyde | 1108 | 11-jun-2018 | 93.8 |
| water, harmful_emissions | 1108 | 11-jun-2018 | 93.8 |
| water, hydrogen_production | 1104 | 23-mar-2018 | 93.8 |
| water, matter | 1104 | 23-mar-2018 | 93.8 |
| water, metabolites | 1104 | 23-mar-2018 | 93.8 |
| water, n50_50_mixture | 1105 | 31-mar-2018 | 93.8 |
| water, organic_compound | 1104 | 23-mar-2018 | 93.8 |
| water, organic_pollutants | 1104 | 23-mar-2018 | 93.8 |
| water, organic_solvents | 1104 | 23-mar-2018 | 93.8 |
| water, particulate_matter | 1104 | 23-mar-2018 | 93.8 |
| water, plutonium | 1107 | 30-may-2018 | 93.8 |
| water, toluene | 1107 | 30-may-2018 | 93.8 |
| water, trichloroethylene | 1107 | 30-may-2018 | 93.8 |
| water_vapour, nitrogen | 1107 | 30-may-2018 | 93.8 |
| xenon, noble_gases | 1115 | 03-sep-2018 | 93.8 |
| acid, lungs | 1107 | 30-may-2018 | 93.8 |
| acid, water_vapour | 1103 | 18-mar-2018 | 93.8 |
| adrenalin, chemicals | 1096 | 19-jan-2018 | 93.8 |
| adrenalin, neurotransmitters | 1096 | 19-jan-2018 | 93.8 |
| caffeine, substances | 1104 | 23-mar-2018 | 93.8 |
| cortisol, body_releases_hormones | 1104 | 23-mar-2018 | 93.8 |
| cortisone, hormones | 1097 | 20-jan-2018 | 93.8 |
| ethanol, sources | 1098 | 22-jan-2018 | 93.8 |
| glucagon, hormones | 1097 | 20-jan-2018 | 93.8 |
| selenium, chemicals | 1096 | 19-jan-2018 | 93.8 |
| selenium, zinc_pyrithione | 1097 | 20-jan-2018 | 93.8 |
| selenium, ketoconazole | 1097 | 20-jan-2018 | 93.8 |
| sodium, chemicals | 1096 | 19-jan-2018 | 93.8 |
| testosterone, hormones | 1097 | 20-jan-2018 | 93.8 |
| urea, compounds | 1096 | 19-jan-2018 | 93.8 |
| urea, wastes | 1096 | 19-jan-2018 | 93.8 |
| zinc, compound | 1096 | 19-jan-2018 | 93.8 |
| zinc, products | 1103 | 18-mar-2018 | 93.8 |
| zinc, zinc_oxide | 1097 | 20-jan-2018 | 93.8 |
| zinc, zinc_selenide | 1096 | 19-jan-2018 | 93.8 |
| fatty_acids, carbon | 1097 | 20-jan-2018 | 93.8 |
| fly_ash, gas | 1103 | 18-mar-2018 | 93.8 |
| organic_material, carbon | 740 | 13-jun-2013 | 93.6 |
| carbon, particulates | 602 | 27-jun-2012 | 93.5 |
| carbon, noxious_gases | 1103 | 18-mar-2018 | 93.4 |
| sulfur, fossil_fuels | 1098 | 22-jan-2018 | 93.3 |
| gas_emissions, emissions | 851 | 03-jul-2014 | 93.3 |
| particles, nitrogen | 689 | 26-jan-2013 | 93.2 |
| hydrogen, fumes | 1045 | 30-mar-2017 | 93.1 |
| dioxide, greenhouse_effect | 851 | 03-jul-2014 | 92.7 |
| ammonia, urea | 599 | 22-jun-2012 | 92.7 |
| sulfur, particles | 689 | 26-jan-2013 | 92.6 |
| particles, carbon | 689 | 26-jan-2013 | 92.5 |
| nitrogen, inert_gas | 664 | 01-dec-2012 | 92.4 |
| atoms, oxygen | 778 | 15-oct-2013 | 92.1 |
| nitrous_oxide, gasses | 1049 | 16-apr-2017 | 91.9 |
| chemicals, lead | 655 | 02-nov-2012 | 91.6 |
| gas, ozone | 1103 | 18-mar-2018 | 91.6 |
| production, carbon | 718 | 29-mar-2013 | 91.5 |
| carbon, combustion_by_products | 1103 | 18-mar-2018 | 91.4 |
| copper, toxic_metals | 1107 | 30-may-2018 | 91.3 |
| ozone, gas | 1103 | 18-mar-2018 | 91.3 |
| gases, coal | 1098 | 22-jan-2018 | 91.3 |
| water, organic_solvent | 1103 | 18-mar-2018 | 90.3 |
| ammonia, carbon | 601 | 25-jun-2012 | 90.2 |
| water, sulphate | 1103 | 18-mar-2018 | 90.2 |
| gases, chemicals | 1098 | 22-jan-2018 | 90.2 |
| argon, inert_gases | 1107 | 30-may-2018 | 90.2 |
| water, disinfectants | 1103 | 18-mar-2018 | 90.1 |