IMPACT OF DROUGHT ON QUALITY OF POTENTIAL WATER SUPPLY SOURCES IN THE SANGAMON RIVER BASIN1
作者:
Charles B. Muchmore,
Benedykt Dziegielewski,
期刊:
JAWRA Journal of the American Water Resources Association
(WILEY Available online 1983)
卷期:
Volume 19,
issue 1
页码: 37-46
ISSN:1093-474X
年代: 1983
DOI:10.1111/j.1752-1688.1983.tb04554.x
出版商: Blackwell Publishing Ltd
关键词: KEY TERMS:;drought;water quality;emergency supplies.
数据来源: WILEY
摘要:
ABSTRACT: The analysis of stream flow and several water quality parameters in six Illinois rivers showed both deterioration and improvement in quality indicators during 1976–1977 drought. The adverse impacts were an increase of ammonia and manganese concentrations and, to a lesser degree, increased concentrations of phenol and specific conductance. At the worst point during the drought, the 12‐month moving average of monthly ammonia concentration in the Sangamon River was about 620 percent higher than the antecedent value. On the other hand, average concentrations of nitrites and nitrates, total iron, and the number of coliform bacteria significantly decreased. This positive response suggests that streams which are considered unsuitable for municipal supply due to high levels of these quality indicators may be used as emergency sources during droug
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