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Lake acidification: Its effect on lead in the sediment of two Adirondack lakes 1, 1
Author(s) -
Davis Andrew O.,
Galloway James N.,
Nordstrom D. Kirk
Publication year - 1982
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1982.27.1.0163
Subject(s) - sediment , lead (geology) , environmental science , hydrology (agriculture) , geology , environmental chemistry , oceanography , chemistry , geomorphology , geotechnical engineering
Sediment cores from two remote lakes, Sagamore and Woods (Adirondack State Park, New York), were analyzed for lead. A marked increase was found in the top 10 cm of the sediment of both lakes. The effect of lake acidification on the release of lead from the sediments was determined in laboratory studies. Significant lead desorption (>5% of the total) only occurred at a pH <3.0 in sediment from Woods Lake and <2.0 in sediment from Lake Sagamore. Since the pH of the two lakes is always >4.4, lead is not being released from the sediments.