Influence of aqueous aluminium and organic acids on measurement of acid neutralizing capacity in surface waters

Acid neutralizing capacity (ANC) is used to quantify the acid-base status of surface waters. Acidic waters have been defined as having ANC values of less than zero, and acidification is often quantified by decreases in ANC. The discrepancy in ANC values is greatest for waters with high concentration...

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Bibliographic Details
Published in:Nature (London) 1989-03, Vol.338 (6214), p.408-410
Main Authors: Sullivan, T. J, Driscoll, C. T, Gherini, S. A, Munson, R. K, Cook, R. B, Charles, D. F, Yatsko, C. P
Format: Article
Language:English
Subjects:
Acidification
Acids
Aluminum
Brackish
Chemistry
Dissolved organic carbon
Freshwater
Marine
Organic acids
Surface water
Water
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Summary:Acid neutralizing capacity (ANC) is used to quantify the acid-base status of surface waters. Acidic waters have been defined as having ANC values of less than zero, and acidification is often quantified by decreases in ANC. The discrepancy in ANC values is greatest for waters with high concentrations of aluminum and or/dissolved organic carbon (DOC). Details and results of a study on ANC are presented.
ISSN:0028-0836
1476-4687
DOI:10.1038/338408a0