New page: A Class I Substance is one of several groups of chemicals given an ozone-depletion potential of 0.2 or higher by the EPA. Class I substances listed in the CAA include CFCs...
A Class I Substance is one of several groups of chemicals given an [[ozone-depletion potential]] of 0.2 or higher by the [[EPA]].
Class I substances listed in the [[CAA]] include [[CFC]]s, [[halons]], [[carbon tetrachloride]], and [[methyl chloroform]].
The [[EPA]] later added HBFCs and methyl bromide to the list by regulation.
A [http://www.epa.gov/ozone/ods.html table] of class I substances shows their lifetime [[ODP]]s, [[GWP]]s, and [[CAS]] numbers.