From Glossary of Meteorology


A group of brominated organic compounds used as fire retardants, including CF3Br (halon 1301), CF2Br2 (halon 1202), CF2BrCl (halon 1211), and CF2BrCF2Br (halon 2402).

The transport of these compounds to the stratosphere, followed by their photolysis to release Br atoms, gives this group a very high ozone depletion potential. The production of these compounds is now banned as a result of the Montreal Protocol and its subsequent amendments.

Copyright 2022 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact [email protected]. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.