Gas phase atmospheric bromine photochemistry | Zendy

Lary D. J. | Zendy

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Gas phase atmospheric bromine photochemistry

Author(s) -

Lary D. J.

Publication year - 1996

Publication title -

journal of geophysical research: atmospheres

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.67

H-Index - 298

eISSN - 2156-2202

pISSN - 0148-0227

DOI - 10.1029/95jd02463

Subject(s) - bromine , ozone , limiting , environmental science , gas phase , ozone depletion , phase (matter) , chain (unit) , atmosphere (unit) , photochemistry , atmospheric sciences , environmental chemistry , chemistry , meteorology , physics , organic chemistry , mechanical engineering , astronomy , engineering

This paper reviews the current knowledge of gas phase bromine photochemistry and presents a budget study of atmospheric bromine species. The effectiveness of the ozone catalytic loss cycles involving bromine is quantified by considering their chain length and effectiveness. The chain effectiveness is a new variable defined as the chain length multiplied by the rate of the cycle's rate‐limiting step. The chain effectiveness enables a fair comparison of different catalytic cycles involving species which have very different concentrations. This analysis clearly shows that below 25 km the BrO/ClO and BrO/HO 2 cycles are among the most important ozone destruction cycles.

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