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Pollutant Deposition in Radiation Fog

Waldman, Jed M. and Jacob, Daniel J. and Munger, J. William and Hoffmann, Michael R. (1987) Pollutant Deposition in Radiation Fog. In: The Chemistry of Acid Rain. ACS Symposium Series. No.349. American Chemical Society , Washington, DC, pp. 250-257. ISBN 9780841214149. https://resolver.caltech.edu/CaltechAUTHORS:20150817-150958493

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Abstract

A study of atmospheric pollutant behavior was conducted in the southern San Joaquin Valley of California during periods of stagnation, both with and without dense fog. Measurements were made of gas-phase and aerosol pollutant concentrations, fogwater composition, and deposition of solutes to surrogate surfaces. Deposition rates for major species were 5 to 20 times greater during fogs compared to nonfoggy periods. Sulfate-ion deposition velocities measured during fog were 0.5 to 2 cm s^(-1). Rates measured for nitrate ion were generally 50% below those for sulfate, except for acidic fog (pH<5) conditions, because nitrate was less effectively scavenged by neutral or alkaline fogs. In radiation fogs, scavenging of ambient aerosol was observed to increase as liquid water content rose. The lifetimes for atmospheric sulfate and ammonium were short (6-12 h) during dense fog compared to the ventilation rate (>3 d) for valley air.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/bk-1987-0349.ch022DOIArticle
http://pubs.acs.org/isbn/9780841214149PublisherArticle
ORCID:
AuthorORCID
Jacob, Daniel J.0000-0002-6373-3100
Hoffmann, Michael R.0000-0001-6495-1946
Additional Information:© 1987 American Chemical Society. Received January 12, 1987. We are grateful to the California Air Resources Board for their financial support (CARB A4-075-32) and their assistance in the field during this project. We are also grateful for the cooperation of the personnel at the Bakersfield Airport, the National Weather Service office in Bakersfield, and the Buttonwillow Recreation Department.
Funders:
Funding AgencyGrant Number
California Air Resources Board (CARB)A4-075-32
Series Name:ACS Symposium Series
Issue or Number:349
Record Number:CaltechAUTHORS:20150817-150958493
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20150817-150958493
Official Citation:Pollutant Deposition in Radiation Fog Jed M. Waldman, Daniel J. Jacob, J. William Munger, and Michael R. Hoffmann The Chemistry of Acid Rain. September 3, 1987, 250-257 Doi:10.1021/bk-1987-0349.ch022
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:59653
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:18 Aug 2015 19:27
Last Modified:09 Mar 2020 13:18

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