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An estimate of the global emissions of methyl bromide from automobile exhausts
Author(s) -
Baker J. M.,
Reeves C. E.,
Penkett S. A.,
Cardenas L. M.,
Nightingale P. D.
Publication year - 1998
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/98gl01795
Subject(s) - atmosphere (unit) , environmental science , carbon monoxide , atmospheric sciences , bromide , air pollution , linear correlation , meteorology , environmental chemistry , chemistry , physics , mathematics , statistics , biochemistry , organic chemistry , catalysis
An estimate of the annual global methyl bromide (CH 3 Br) emissions from automobile exhausts has been determined by extrapolating the results of a field study conducted in the United Kingdom (UK). A strong linear correlation was observed between the CH 3 Br and carbon monoxide (CO) concentrations of roadside air in three cities. This correlation and knowledge of the UK CO emissions was used to estimate the source strength of CH 3 Br from automobile exhausts in the UK (0.04 ktonnes yr −1 ). Further extrapolations lead to a value of 1.5 ktonnes yr −1 (with an upper limit of 3.0 ktonnes yr −1 ) of CH 3 Br released globally to the atmosphere from automobile exhausts.