EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HALOCARBONS AND HALOGENS > HYDROFLUOROCARBONS
The HFCs are a class of replacements for CFCs. Because they do not
contain chlorine or bromine, they do not deplete the ozone layer. All HFCs
have an ozone depletion potential of 0. Some HFCs have high GWPs (Global
Warming Potentials). HFCs are numbered according to a standard scheme. The
National Oceanic and Atmospheric Administration (NOAA) provides more
detailed information about HFCs on their HREF="http://www.cmdl.noaa.gov/noah/flask/hfc.html">web site.
U.S. Environmental Protection Agency (EPA) Ozone Depletion Glossary at