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The purpose of this report is to summarize the concentrations and distribution of selected trace elements in fish tissue and bed sediment in the NROK study area and provide information to determine whether concentrations are at levels of concern to human health and aquatic life. Relations among trace-element concentrations in fish tissue and bed sediment and basinwide land use, geology, and mining activities also are evaluated. The findings of this report will provide a better understanding of trace-element concentrations in aquatic environments that are highly enriched with trace elements.
For copies of this report, you can obtain ordering information from the U.S. Geological Survey, Information Services, Box 25286, Denver Federal Center, Denver, CO 80225 (1-888-275-8747), or send email to infoservices@usgs.gov
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U.S. Department of the Interior, U.S. Geological Survey
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