Filters: partyWithName: U.S. Geological Survey (X) > partyWithName: Keith A Loftin (X)

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Concentrations of glyphosate and atrazine compounds in 100 Midwest United States streams in 2013 Temporal patterns in glyphosate and atrazine concentrations were measured weekly by the U.S. Geological Survey (USGS) during the 2013 growing season in 100 small streams in the Midwestern United States. Concentrations also were measured every 2 days at a subset of 8 of the sites, all located in Missouri. Glyphosate was detected more frequently in urban streams than in agricultural streams, and at concentrations similar to those in streams with high agricultural land use in the watershed. In contrast, atrazine was detected more frequently and at higher concentrations in agricultural streams than in urban streams. This data release provides watershed characteristics and 2013 glyphosate and atrazine compound concentrations... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Corn Belt, ELISA, Illinois, Indiana, Iowa, All tags... Kansas, Kentucky, Minnesota, Missouri, Nebraska, Ohio, South Dakota, USGS Science Data Catalog (SDC), United States, Water Quality, Wisconsin, atrazine, glyphosate, herbicide, river, spring flush, stream, Fewer tags Location, sampling methods and field conditions of response-mode soil and sediment sampling stations sampled, Sediment-Bound Contaminant Resiliency and Response Strategy pilot study, northeastern United States, 2015 Coastal communities are uniquely vulnerable to sea-level rise (SLR) and severe storms such as hurricanes. These events enhance the dispersion and concentration of natural and anthropogenic chemicals and pathogenic microorganisms that could adversely affect the health and resilience of coastal communities and ecosystems in coming years. The U.S. Geological Survey has developed the Sediment-Bound Contaminant Resiliency and Response (SCoRR) strategy to define baseline and post-event sediment-bound environmental health (EH) stressors. These data document the location, sampling techniques and field conditions observed while collecting soil and sediment samples from selected stations in the northeastern US during the... Categories: Data; Types: Citation; Tags: Connecticut, Delaware, District of Columbia, Maine, Maryland, All tags... Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, South Carolina, USGS Science Data Catalog (SDC), Virginia, contamination and pollution, environmental health, field monitoring stations, field sampling, Fewer tags Protein Phosphatase 2A screening of extracted sediments for samples collected for the Sediment-Bound Contaminant Resiliency and Response Strategy pilot study, northeastern United States, 2015 Coastal communities are uniquely vulnerable to sea-level rise and severe storms such as hurricanes. These events enhance the dispersion and concentration of natural and anthropogenic chemicals and pathogenic microorganisms that could adversely affect the health and resilience of coastal communities and ecosystems in subsequent years. The U.S. Geological Survey has developed the Sediment-Bound Contaminant Resiliency and Response (SCoRR) strategy to define baseline and post-event sediment-bound environmental health stressors. These data document the results from protein phosphatase 2A screening of extracts for selected stations in the northeastern U.S. during the 2015 pilot implementation of the SCoRR strategy in... Categories: Data; Tags: Assessment, Coastal, Connecticut, Contaminants, Delaware, All tags... District of Columbia, Environmental Health, Geochemistry, Geography, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, PP2A, Pennsylvania, Protein phosphatase inhibition, Rhode Island, Soil Sciences, South Carolina, USGS Science Data Catalog (SDC), Virginia, chemical analysis, contamination, environmental health, field monitoring stations, field sampling, pollution, sediment analysis, Fewer tags Analytical inorganic chemistry results for samples collected for the Sediment-Bound Contaminant Resiliency and Response Strategy pilot study, northeastern United States, 2015 Coastal communities are uniquely vulnerable to sea-level rise (SLR) and severe storms such as hurricanes. These events enhance the dispersion and concentration of natural and anthropogenic chemicals and pathogenic microorganisms that could adversely affect the health and resilience of coastal communities and ecosystems in coming years. The U.S. Geological Survey has developed the Sediment-Bound Contaminant Resiliency and Response (SCoRR) strategy to define baseline and post-event sediment-bound environmental health (EH) stressors. These data document the major element chemistry, major and trace chemical composition, total sulfur content, inorganic and organic carbon for soil and sediment samples from selected stations... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Connecticut, Delaware, District of Columbia, Inductively Coupled Plasma – Atomic Emission Spectroscopy, Inductively Coupled Plasma – Mass Spectroscopy, All tags... Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, South Carolina, USGS Science Data Catalog (SDC), Virginia, X-ray Spectroscopy, carbon, chemical analysis, contamination and pollution, environmental health (human), field monitoring stations, field sampling, inorganic carbon, mercury compounds, methylmercury, organic carbon, pollutants, sediment analysis, sulfur, toxicants, Fewer tags Periphyton (1993-2011) and Water Quality (2014) Data for ET&C Article Entitled Spatial and Temporal Variation in Microcystins Occurrence in Wadeable Streams in the Southeastern USA Spatial reconnaissance of fluvial microcystins (MC) concentrations and select water-quality parameters, including nutrients and periphyton biomass, in 75 wadeable streams in the Piedmont region of the southeastern USA during 2014. Data set includes only those data specifically discussed in the associated journal article: Loftin, K.A., Clark, J.M., Journey, C.A., Kolpin, D.W., Van Metre, P.C., and Bradley, P.M., 2016, Spatial and temporal variation in microcystins occurrence in wadeable streams in the southeastern USA: Environmental Toxicology & Chemistry, http://dx.doi.org/10.1002/etc.3391. Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alabama, Environmental Health, Georgia, North Carolina, South Carolina, All tags... USGS Science Data Catalog (SDC), United States, Virginia, Water Quality, cyanobacteria, harmful algal blooms, headwater streams, microcystin, periphyton, stream, stream channel, wadable streams, Fewer tags Location, sampling methods and field conditions of resiliency-mode soil and sediment sampling stations sampled, Sediment-Bound Contaminant Resiliency and Response Strategy pilot study, northeastern United States, 2015 Coastal communities are uniquely vulnerable to sea-level rise (SLR) and severe storms such as hurricanes. These events enhance the dispersion and concentration of natural and anthropogenic chemicals and pathogenic microorganisms that could adversely affect the health and resilience of coastal communities and ecosystems in coming years. The U.S. Geological Survey has developed the Sediment-Bound Contaminant Resiliency and Response (SCoRR) strategy to define baseline and post-event sediment-bound environmental health (EH) stressors. These data document the location, sampling techniques and field conditions observed while collecting soil and sediment samples from selected stations in the northeastern US during the... Categories: Data; Types: Citation; Tags: Connecticut, Delaware, District of Columbia, Maine, Maryland, All tags... Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, USGS Science Data Catalog (SDC), Virginia, contamination and pollution, environmental health, field monitoring stations, field sampling, Fewer tags Fourier Transform Infrared (FTIR) screening of extracted sediments for samples collected for the Sediment-Bound Contaminant Resiliency and Response Strategy pilot study, northeastern United States, 2015 Coastal communities are uniquely vulnerable to sea-level rise and severe storms such as hurricanes. These events enhance the dispersion and concentration of natural and anthropogenic chemicals and pathogenic microorganisms that could adversely affect the health and resilience of coastal communities and ecosystems in subsequent years. The U.S. Geological Survey has developed the Sediment-Bound Contaminant Resiliency and Response (SCoRR) strategy to define baseline and post-event sediment-bound environmental health stressors. These data document the mid-range Fourier transform infrared (FTIR) spectra and absorbance measurements as a function of wavelength with and without spectral corrections for selected stations... Categories: Data; Tags: Assessment, Coastal, Connecticut, Contaminants, Delaware, All tags... District of Columbia, Environmental Health, FTIR, Fourier-transform infrared, Geochemistry, Geography, Maine, Maryland, Mass Spectroscopy, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Soil Sciences, South Carolina, USGS Science Data Catalog (SDC), Virginia, chemical analysis, contamination, environmental health, field monitoring stations, field sampling, pollution, sediment analysis, Fewer tags