A method for evaluation of acidic sulfate and nitrate in precipitation

Portions of sulphate and nitrate that contributed to strong acid in weekly precipitation samples at three sites were assessed by a simple model. The model assumed that the differences between sulphate and ammonium represented acidic sulphate and that the difference between nitrate and soil-derived c...

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Bibliographic Details
Published in:Water, air, and soil pollution air, and soil pollution, 1989, Vol.43 (1-2), p.61-72
Main Author: SISTERSON, D. L
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Natural water pollution
Pollution
Rainwaters, run off water and others
Water treatment and pollution
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Summary:Portions of sulphate and nitrate that contributed to strong acid in weekly precipitation samples at three sites were assessed by a simple model. The model assumed that the differences between sulphate and ammonium represented acidic sulphate and that the difference between nitrate and soil-derived calcium plus magnesium plus potassium represented acidic nitrate. Seasonal wet deposition (WD) chemical data is tabulated for each site. Acidic sulphate and nitrate (AS and AN) were considered the predominant proton source. The greatest part of the acidity was attributed to AS. The fraction of AS to proton WD value was 0.95 for east-central Tennessee site, 0.9 for the northeast Illinois site and 0.75 for the central Pennsylvania site. The AS fraction was 0.84, 0.66 and 0.71, respectively, for each site and for AN 0.35, 0.24 and 0.59, respectively. There are 56 references.
ISSN:0049-6979
1573-2932
DOI:10.1007/BF00175583