Heavy Metal Loading to Lake Lanier from Point Sources of Pollution and Urban Runoff

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1997-03Author
Brouckaert, Barbara
Amirtharajah, Appiah
Zhu, Guangxuan
York, M. Timmerly
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Show full item recordAbstract
An investigation into sources of heavy metal
contamination in Lake Sydney Lanier has been carried out as
part of the Clean Lakes Program. Previous studies have
found evidence of trace metal contamination in the water
column and sediments of the lake and its tributaries and in
the tissues of fish. Currently, there is little quantitative data
on point and non-point sources of toxic metals in the
watershed. In this study, effluent samples from nine
municipal and one industrial wastewater treatment plant and
stormwater samples from three lake tributaries were analyzed
for total recoverable mercury, arsenic, selenium, chromium,
nickel, copper, zinc, cadmium, barium and lead. The most
abundant metals were barium and zinc. Toxic metal loads
due to stormwater runoff were always greater than those due
to effluent discharges.
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