Class I Substance
A Class I Substance is One of several groups of chemicals with an ozone depletion potential of 0.2 or higher, including CFCS, Halons, Carbon Tetrachloride, and Methyl Chloroform (listed in the Clean Air Act), and HBFCs and Ethyl Bromide (added by EPA regulations). (See: Global warming potential.)
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| Perfluorocarbons | ■■■■■■■■ |
The Perfluorocarbons (PFCs) is a group of human-made chemicals composed of carbon and fluorine only. . . . Read More | |
| Bromofluorocarbon | ■■■■■■■ |
In the environment context, "Bromofluorocarbon" refers to a group of organic compounds that contain bromine, . . . Read More | |
| Criteria Pollutants | ■■■■■■■ |
Criteria Pollutants are the 1970 amendments to the Clean Air Act required EPA to set National Ambient . . . Read More | |
| Hydrofluorocarbons (HFCs) | ■■■■■■■ |
A Hydrofluorocarbons (HFCs) is Compounds containing only hydrogen, fluorine, and carbon atoms. They were . . . Read More | |
| National Ambient Air Quality Standards (NAAQS): | ■■■■■■ |
National Ambient Air Quality Standards: National Ambient Air Quality Standards (NAAQS): : A National . . . Read More | |
| Group B2 | ■■■■■■ |
A Group B2 is Compounds for which animal data are sufficient to demonstrate a cause-and-effect relationship . . . Read More | |
| Primary NAAQS | ■■■■■■ |
Primary NAAQS: Primary National Ambient Air Quality Standards (NAAQS) in the environmental context refer . . . Read More | |
| Montreal Protocol on Substances that Deplete the Ozone Layer | ■■■■■■ |
Montreal Protocol on Substances that Deplete the Ozone Layer : A Montreal Protocol on Substances that . . . Read More | |
| Halons | ■■■■■■ |
Halons are Compounds, also known as bromofluorocarbons, that contain bromine, fluorine, and carbon. They . . . Read More | |
| State Implementation Plan | ■■■■■ |
The State Implementation Plan (SIP) is a detailed description of the programs a state will use to carry . . . Read More | |