Bromine emissions from leaded gasoline

Details Bromine emissions from leaded gasoline Bromine emissions from leaded gasoline

Jun 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997georl..24.1371t&link_type=abstract

Geophysical Research Letters, Volume 24, Issue 11, p. 1371-1374

Physics

16

Atmospheric Composition And Structure: Constituent Sources And Sinks

Scientific paper

Gasoline lead additives contain brominated compounds. When leaded gasoline is combusted, some of the bromine can be emitted as methyl bromide which can contribute to stratospheric ozone depletion. Based on world use of lead in gasoline and on gasoline scavenger formulations, we estimate that worldwide use of bromine in gasoline peaked in the early 1970s at 170+/-20 kT/yr and that by 1995 this had decreased to 23+/-2.5 kT/yr. The fraction of bromine in leaded gasoline that is emitted as methyl bromide ranges over two orders of magnitude. At the upper end of this range, the decrease in methyl bromide emissions from the 1970s to the 1990s could have equaled the increase in emissions from use of methyl bromide as a fumigant in the same period.

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