Mercury,arsenic, antimony,and selenium contents of sediment from the Kuskokwim River,Bethel, Alaska,USA |
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Authors: | Harvey E. Belkin Harold M. Sparck |
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Affiliation: | (1) U.S. Geological Survey, Mail stop 959, 22092 Reston, Virginia, USA;(2) Harold Sparck and Associates, Box 267, 99559 Bethel, Alaska, USA |
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Abstract: | The Kuskokwim River at Bethel, Alaska, drains a major mercury-antimony metallogenic province in its upper reaches and tributaries. Bethel (population 4000) is situated on the Kuskokwim floodplain and also draws its water supply from wells located in river-deposited sediment. A boring through overbank and floodplain sediment has provided material to establish a baseline datum for sediment-hosted heavy metals. Mercury (total), arsenic, antimony, and selenium contents were determined; aluminum was also determined and used as normalizing factor. The contents of the heavy metals were relatively constant with depth and do not reflect any potential enrichment from upstream contaminant sources. |
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Keywords: | Heavy metals River-deposited sediment Contamination Water quality |
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