Difference between revisions of "Class I substance"
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A '''Class I substance''' is one of several groups of chemicals given an [[ozone-depletion potential]] (ODP) of 0.2 or higher by the [[Environmental Protection Agency]] (EPA). | A '''Class I substance''' is one of several groups of chemicals given an [[ozone-depletion potential]] (ODP) of 0.2 or higher by the [[Environmental Protection Agency]] (EPA). | ||
| − | Class I substances listed in the [[Clean Air Act]] include [[chlorofluorocarbon]]s, [[ | + | Class I substances listed in the [[Clean Air Act]] include [[chlorofluorocarbon]]s, [[halon]]s, [[carbon tetrachloride]], and [[methyl chloroform]]. |
The [[EPA]] later added HBFCs and methyl bromide to the list by regulation. | The [[EPA]] later added HBFCs and methyl bromide to the list by regulation. | ||
Revision as of 16:35, March 15, 2008
A Class I substance is one of several groups of chemicals given an ozone-depletion potential (ODP) of 0.2 or higher by the Environmental Protection Agency (EPA).
Class I substances listed in the Clean Air Act include chlorofluorocarbons, halons, carbon tetrachloride, and methyl chloroform.
The EPA later added HBFCs and methyl bromide to the list by regulation.
External Links
- Table of class I substances shows their lifetime ODPs, global warming potentials, and CAS numbers.
