Aqueous-phase source of formic acid in clouds

Details Aqueous-phase source of formic acid in clouds Aqueous-phase source of formic acid in clouds

Aug 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983natur.304..427c&link_type=abstract

Nature (ISSN 0028-0836), vol. 304, Aug. 4, 1983, p. 427-429.

Other

56

Acid Rain, Atmospheric Chemistry, Cloud Cover, Formic Acid, Liquid Phases, Acetic Acid, Atmospheric Models, Environment Effects, Environment Pollution, Vapor Phases

Scientific paper

The coupled gas- and aqueous-phase cloud chemistry of HCOOH were examined for controlling factors in the acidity of cloud and rainwater. Attention was given to the aqueous OH/HO2 system that yields an OH species that is highly reactive with other species, notably SO2 and the formaldehyde/formic acid complex. A numerical model was developed to simulate the cloud chemistry in the remote troposphere, with considerations given to CH4-CO-NO(x)-O3-H(x)O(y) system. It was determined that aqueous phase OH radicals can produce and destroy formic acid droplets in daylight conditions, as well as control formic acid levels in rainwater. It is sugested that the same types of reactions may be involved in the control of acetic acid and other organic acids.

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