A field investigation of physical and chemical mechanisms affecting pollutant concentrations in fog droplets
CaltechAUTHORS
View Archive InfoField | Value | |
Title |
A field investigation of physical and chemical mechanisms affecting pollutant concentrations in fog droplets
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Creator |
Jacob, Daniel J.
Waldman, Jed M. Munger, J. William Hoffmann, Michael R. |
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Description |
High ionic loadings were found in fogwater collected at Bakersfield. California during an extended stagnation episode. The major ions were NH_4^+, NO^-_3, and SO_4^(2-), with concentrations usually in the millimolar range. Droplet growth played an important r6le in determining fogwater concentrations. The amount of solute decreased substantially over the course of each fog event; this was attributed, at least in part, to deposition of fog droplets on surfaces. The occurrence of dense fogs thus seemed to limit particle build-up during stagnation episodes. The sulfate fraction in the aerosol increased appreciably over several days of stagnation, but no statistical evidence for in situ S(IV) aqueous-phase oxidation was found. The high ammonia concentrations present were sufficient to neutralize a large fraction of the ambient acidity. As a result, fogwater pH values rarely attained the extremely low values found in other polluted environments. |
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Publisher |
Co-Action Publishing
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Date |
1984-09
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Type |
Article
PeerReviewed |
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Format |
application/pdf
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Identifier |
http://authors.library.caltech.edu/59778/1/j.1600-0889.1984.tb00247.x.pdf
Jacob, Daniel J. and Waldman, Jed M. and Munger, J. William and Hoffmann, Michael R. (1984) A field investigation of physical and chemical mechanisms affecting pollutant concentrations in fog droplets. Tellus B, 36B (4). pp. 272-285. ISSN 0280-6509. http://resolver.caltech.edu/CaltechAUTHORS:20150820-073728259 <http://resolver.caltech.edu/CaltechAUTHORS:20150820-073728259> |
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Relation |
http://resolver.caltech.edu/CaltechAUTHORS:20150820-073728259
http://authors.library.caltech.edu/59778/ |
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