A National Toxics Inventory is EPA's compilation of quantitative information concerning the mass of Air Toxics emitted into the atmosphere (through smokestacks, tailpipes, vents, etc. )

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Air Mass ■■■■
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Criteria Pollutants ■■■■
Criteria Pollutants are the 1970 amendments to the Clean Air Act required EPA to set National Ambient . . . Read More
Aerosol ■■■
An Aerosol has several definitions and can mean one of the following definitions: 1. Small droplets or . . . Read More
Air Pollution ■■■
Air Pollution is the presence of contaminants or Pollutant substances in the air that interfere with . . . Read More
Chlorofluorocarbons ■■■
Chlorofluorocarbons (CFCs) is a family of inert, nontoxic, and easily liquefied chemicals used in refrigeration, . . . Read More
Atmosphere ■■■
An atmosphere is the 500 km thick Layer of air surrounding the earth which supports the existence of . . . Read More
Greenhouse effect ■■■
A greenhouse effect is the process that raises the temperature of air in the lower atmosphere due to . . . Read More
Acid Deposition ■■■
An Acid Deposition is a complex chemical and atmospheric phenomenon that occurs when Emissions of sulfur . . . Read More
Confidential Business Information (CBI) ■■■
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Air Toxics ■■■
Air Toxics are any Air Pollutant for which a national Ambient Air quality standard (NAAQS) does not exist . . . Read More