Upper Midwest Environmental Sciences Center
Determination of cadmium, chromium, lead, mercury, nickel, and zinc in sediment samples from the Upper Mississippi River.
Sampling Purpose: Sediment samples were collected in 1987 from four sites on the Upper Mississippi River (UMR) for use in bioassays comparing toxicity of sediments from around the nation. Each sample represents a composite of ten individual grabs. Coordinates were provided on field data sheets for each grab, the coordinate for the first grab was entered into the database for the whole sample. All UMR samples were analyzed for metals, polynuclear aromatic hydrocarbons, and polychlorinated biphenyls. One sample in the data set represents a laboratory duplicate analyzed for polynuclear aromatic hydrocarbons only.
Number of Observations (samples) in Data Set: 5
Institution Providing Data: U.S. Geological Survey
Data Set No. 20:
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Data source variables
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Sample variables
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Classes of Contaminants (in both data set 20 and other data sets)
Inorganic contaminants:
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Metals, metalloids, nutrients and others
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Organic contaminants:
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Polynuclear aromatic hydrocarbons (PAHs)
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Polychlorinated biphenyls (PCBs)
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Toxicity
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Content manager: Michelle Bartsch
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.umesc.usgs.gov/data_library/sediments_contaminants/datasets/20.html
Page Contact Information: Contacting the Upper Midwest Environmental Sciences Center
Page Last Modified:
January 29, 2016
