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Hydrogen peroxide measurements in the marine atmosphere

โœ Scribed by P. Jacob; D. Klockow

Publisher
Springer Netherlands
Year
1992
Tongue
English
Weight
377 KB
Volume
15
Category
Article
ISSN
0167-7764

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โœฆ Synopsis

Hydrogen peroxide, one of the key compounds in multiphase atmospheric chemistry, was measured on an Atlantic cruise (ANT VII/l) of the German research vessel Polarstern from 15 September to 9 October 1988, in rain and ambient air by a chemiluminescence technique. For gas phase H202 cryogenic sampling was employed. The presented results show an increase of gas-phase mixing ratios of about 45 pptv per degree latitude between 50 ยฐ N and 0 ยฐ, and a maximum of 3.5 ppbv around the equator. Generally higher mixing ratios were observed in the Southern Hemisphere, with a clear diurnal variation. The H202 mixing ratio is correlated to the UV radiation intensity and to the temperature difference between air and ocean surface water.

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โœ Zhang Genfa; Purnendu K. Dasgupta; Glenn M. Frick; William A. Hoppel ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 270 KB

Hydrogen peroxide remains a key species of interest, in both the polluted and the unpolluted atmosphere. While many studies exist, the vertical distribution of H 2 O 2 in the marine atmosphere has never been reported. This paper reports data for gaseous H 2 O 2 , O 3 , and SO 2 and meteorological pa