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Aqueous-phase source of formic acid in cloudsThe 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.
Document ID
19830062337
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Chameides, W. L.
(Georgia Inst. of Tech. Atlanta, GA, United States)
Davis, D. D.
(Georgia Institute of Technology Atlanta, GA, United States)
Date Acquired
August 11, 2013
Publication Date
August 4, 1983
Publication Information
Publication: Nature
Volume: 304
ISSN: 0028-0836
Subject Category
Geophysics
Accession Number
83A43555
Funding Number(s)
CONTRACT_GRANT: NSF ATM-82-08828
CONTRACT_GRANT: NAG1-85
Distribution Limits
Public
Copyright
Other

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