Search Data.gov
Found 1729 dataset(s) matching "reference concentration".
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Mercury concentration, mercury stable isotope ratio, and carbon and nitrogen stable isotope ratio data as applicable for sediment, water, invertebrates, and fish collected from the St. Louis River...
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The Operational Sea Surface Temperature and Sea Ice Analysis Reprocessed (OSTIA-REP) is a GHRSST reprocessed Level-4 sea surface temperature and ice-concentration analysis produced by the UK Met...
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These data were part of a critical review that looks at the occurrence of PFOS in ambient surface waters across the U.S. All data from this paper were obtained from publicly available literature,...
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Notice: Due to funding limitations, this data set was recently changed to a “Basic” Level of Service. Learn more about what this means for users and how you can share your story here: <a...
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Arsenic (As) toxicity is a global environmental and health problem. There are both natural (eg volcanic activity) and anthropogenic sources of As (eg lead arsenate and copper arsenate were...
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This dataset consists of helium and tritium data submitted by Woods Hole Oceanographic Institution (WHOI) as part of the Transient Tracers in the Ocean Funding Organization (TTO) North Atlantic...
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Timeseries data from 'WOLVERINE C NR LAWING AK (USGS 15236900)' (gov_usgs_nwis_15236900)
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This data release includes concentrations of contaminants of emerging concern (CEC), by chemical class, for sites sampled within 25 river basins in the U.S. portion of the Great Lakes basin and...
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This dataset was developed in partnership with the Tennessee Department of Environmental Conservation to determine the susceptibility of selected Tennessee reservoirs to eutrophication and...
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In cooperation with the Texas Commission on Environmental Quality (TCEQ), the U.S. Geological Survey (USGS) used various field and laboratory methods to determine the presence and concentration of...
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This dataset contains data taken by CTD and Niskin bottles in the Central California Current system between Point Conception and Point Arena from the research vessel Western Flyer during the...
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This dataset contains physical, chemical, and biological data collected from the Monterey Bay Aquarium Research Institute, MBARI, Central California Carbon PH and Oxygen (C3PO) leg 1 Western Flyer...
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This Standard Reference Material (SRM) is intended for use as a primary calibration standard for the quantitative determination of germanium. A unit of SRM 3120a consists of 50 mL of a single...
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Timeseries data from 'WANDO RIVER ABOVE MT PLEASANT, SC (USGS 021720698)' (gov_usgs_nwis_021720698)
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Timeseries data from 'LITTLE BACK RIVER AT GA 25 AT PORT WENTWORTH, GA (USGS 021989792)' (gov_usgs_nwis_021989792)
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Timeseries data from 'MIDDLE RIVER AT GA 25 AT PORT WENTWORTH, GA (USGS 02198950)' (gov_usgs_nwis_02198950)
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Timeseries data from 'COOPER R AT FILBIN CREEK AT NORTH CHARLESTON, SC (USGS 021720677)' (gov_usgs_nwis_021720677)
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This child data release includes field spectra and in situ measurements of Rhodamine WT dye concentration acquired during a tracer experiment performed on the Missouri River near Columbia,...
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Timeseries data from 'HILLSBOROUGH R AT FOWLER AV NEAR TEMPLE TERRACE FL (USGS 02304000)' (gov_usgs_nwis_02304000)