Arsenic concentrations and distribution in Chautauqua Lake sediments |
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| Authors: | D. F. Ruppert Ph. K. Hopke P. Clute W. Metzger D. Crowley |
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| Affiliation: | (1) Lake Erie Environmental Studies Program and Department of Chemistry, State University College, 14063 Fredonia, N.Y., (USA);(2) Lake Erie Environmental Studies Program and Department of Geology, State University College, 14063 Fredonia, N.Y., (USA);(3) Present address: 434 East Main Street, Apt. 4, 14020 Batavia, N.Y.;(4) Present address: 808 Wedgewood Drive, 16505 Erie, Pa. |
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| Abstract: | In order to describe the occurrence and to investigate the sources of arsenic found in Chautauqua Lake sediments, 98 grab samples have been analyzed by neutron activation analysis. The arsenic concentrations were found to range from <0.5 to 58.75 ppm for 96 of the 98 samples with an overall average value of 22.10 ppm. The two other samples had concentrations of 140.0 and 306.0 ppm. High arsenic concentrations have been positively correlated with a decrease in the sediment particle size. Natural arsenic concentrations found in the soil and bedrock in the area do not explaint the observed concentrations in the lake sediment. The increase in arsenic appears to be related to the spraying of sodium arsenite as an aquatic pesticide during the period 1955–1963. |
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