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Found 1050 dataset(s) matching "Laboratory Methods".
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This report provides data input and computation results for a method developed by Crawford and Martin (2017) to address differences in concentrations of fipronil and three degradates obtained by...
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In cooperation with the Texas Commission on Environmental Quality (TCEQ), the U.S. Geological Survey (USGS) utilized various field and laboratory methods to determine the presence 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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The data release contains biomarker data generated by Gas Chromatography-Single Quadrupole Mass Spectrometry in the Petroleum Geochemistry Research Laboratory. The data was used to determine the...
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The data release contains programmed pyrolysis data generated in the Petroleum Geochemistry Research Laboratory that was used to determine the precision and accuracy of daily operating standards...
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This dataset provides the expected and determined concentrations of selected inorganic and organic analytes for spiked reagent-water samples (calibration standards and limit of quantitation...
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This project “fenceline Passive Sampler and Sensor Studies” contains information on several related field efforts that examine use of passive sorbent tubes and prototype fenceline sensor...
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<p dir="ltr">This dataset contains all data and R code, in RMarkdown notebook format, needed to reproduce all statistical analysis, figures, and tables in the manuscript:</p><p dir="ltr">Jeffers,...
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A drinking water method for seven pesticides and pesticide degradates was developed that addresses the occurrence monitoring needs of the U.S. Environmental Protection Agency (EPA) for a future...
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<p>Identifying and developing effective and sensitive detection methods for antimicrobial resistant Salmonella enterica from surface water is a goal of the U.S. National Antimicrobial Resistance...
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Quantitative polymerase chain reaction (qPCR) has become a frequently used technique for quantifying enterococci in recreational surface waters, but there are several methodological options. Here...
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These data represent water and bed sediment samples analyzed for a variety of organic compounds. The samples were collected in streams and rivers in the Chesapeake Bay watershed from 2006-2014. ...
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The data presented in this data file is a product of a journal publication. The dataset contains PCB sorption concentrations on encapsulants, PCB concentrations in the air and in wipe samples,...
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The USGS Idaho Water Science Center (IDWSC) recently completed a report (citation TBD) documenting methods for alternative stream velocity measurement methods. The methods developed can be used to...
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The USGS Idaho Water Science Center (IDWSC) recently completed a report (citation TBD) documenting methods for alternative stream velocity measurement methods. The methods developed can be used to...
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The USGS Idaho Water Science Center (IDWSC) recently completed a report (citation TBD) documenting methods for alternative stream velocity measurement methods. The methods developed can be used to...
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It has been shown that Environmental Protection Agency (EPA) Method 3060A does not adequately extract Cr(VI) from solids containing chromium ore processing residue (COPR). We systematically...
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The U.S. Geological Survey (USGS), in cooperation with the Miami Conservancy District, Dayton, Ohio, in 2019 and 2020 investigated concentrations of per- and polyfluoroalkyl substances (PFAS) in...
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The U.S. Geological Survey (USGS), in cooperation with the Miami Conservancy District, Dayton, Ohio, in 2019 and 2020 investigated concentrations of per- and polyfluoroalkyl substances (PFAS) in...
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The National Water-Quality Assessment (NAWQA) Program and National Stream Quality Accounting Network (NASQAN) are U.S. Geological Survey (USGS) monitoring programs that measure pesticide...
