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Sediment-quality and water-toxicity data from 10 sites on the Westside Creeks and San Antonio River, San Antonio, Texas, 2014 Sediment samples and samples for water-toxicity testing were collected during 2014 from several streams in San Antonio, Texas known locally as the Westside creeks (Alazán, Apache, Martínez, and San Pedro Creeks) and from the San Antonio River. Samples were collected once during base-flow and again after periods of storm-water runoff (post-storm conditions) to determine baseline sediment- and water-quality conditions. Streambed-sediment samples were analyzed for selected constituents, including trace elements and organic contaminants such as pesticides, polychlorinated biphenyls (PCBs), brominated flame retardants, and polycyclic aromatic hydrocarbons (PAHs). Categories: Data; Tags: Alazán Creek, Apache Creek, Bexar County, Brominated flame retardants, Fathead minnow, All tags... Halogenated organic compounds, Martínez Creek, PAH, PCB, Pesticides, Pimephales promelas, Polychlorinated biphenyls, Polycyclic aromatic hydrocarbons, San Antonio, San Antonio River, San Pedro Creek, Sediment-quality, Texas, Trace elements, USA, USGS Science Data Catalog (SDC), USGS Station ID 08178100, USGS Station ID 08178310, USGS Station ID 08178345, USGS Station ID 08178375, USGS Station ID 08178410, USGS Station ID 08178445, USGS Station ID 08178460, USGS Station ID 08178465, USGS Station ID 08178504, USGS Station ID 08178515, United States, Water Quality, Water-toxicity, Westside Creeks, Fewer tags Pesticide concentration and streamflow datasets used to evaluate pesticide trends in the Nation’s rivers and streams, 1992-2012 (input) In 1991, the U.S. Geological Survey (USGS) began a study of more than 50 major river basins across the Nation as part of the National Water-Quality Assessment (NAWQA) project of the National Water-Quality Program. One of the major goals of the NAWQA project is to determine how water-quality conditions change over time. To support that goal, long-term consistent and comparable monitoring has been conducted on streams and rivers throughout the Nation. Outside of the NAWQA project, the USGS also has collected long-term water-quality data to support additional assessments of changing water-quality conditions. These data have been combined to provide insight into how natural features and human activities have contributed... Categories: Data; Types: Citation; Tags: United States, pesticides, streamflow, trends, usgsnawqaswtrends, All tags... water quality, Fewer tags Pesticides and pesticide transformation product data from passive samplers deployed in 15 Great Lakes tributaries, 2016 This dataset includes pesticides and pesticide transformation products in 15 tributaries of the Great Lakes. Pesticides were monitored using polar organic chemical integrative samplers (POCIS) to estimate concentrations in water following standard protocols (Alvarez, 2010) in June and July 2016. POCIS extracts were analyzed for 225 chemicals (USGS National Water Quality Laboratory schedule 5437, Sandstrom and others, 2016), for which 129 chemicals also have POCIS uptake rates, allowing calculations of time-weighted mean concentration over the approximately 30 day deployment (Alvarez and others, 2008). Collectively, there were 97 chemicals detected, and time-weighted mean concentrations could be calculated for 95... Categories: Data; Tags: Bad River, Clinton River, Cuyahoga River, Environmental Health, Fox River, All tags... Genesee River, Grand River, Great Lakes, Indiana, Indiana Harbor canal, Lake Erie, Lake Huron, Lake Michigan, Lake Ontario, Lake Superior, Limnology, Maumee River, Michigan, Milwaukee River, Minnesota, New York, Ohio, Oswego River, River Rouge, Saginaw River, St. Joseph River, St. Louis River, USGS Science Data Catalog (SDC), Vermilion River, Water Resources, Wisconsin, contamination and pollution, dissolved contaminants, emerging contaminants, inlandWaters, legacy contaminants, passive samplers, pesticides, surface water, surface water quality, water chemistry, Fewer tags Sediment chemistry and sediment toxicity in wadable streams across the Midwestern United States, 2013 These data present chemistry and toxicity results from freshwater stream sediments collected from 99 wadable stream sites across eleven states in the Midwestern U.S. as one component of a larger USGS study in the summer of 2013. This data presents a selected suite of chemistry collected at these sites (PAHs, Organochlorines, PCBs, Trace Elements, and current use pesticides) used in calculating a Probable Effect Concentration-Likely Effect Benchmark quotient mixture score for contaminants measured in sediments. The toxicity data presents results of toxicity tests following ASTM and US EPA standard methods for sediment toxicity tests with the amphipod Hyalella azteca (28-d exposure), the midge Chironomus dilutus (10-d),... Categories: Data; Types: Citation; Tags: Illinois, Indiana, Iowa, Kansas, Kentucky, All tags... Michigan, Minnesota, Missouri, Nebraska, Ohio, South Dakota, USGS Science Data Catalog (SDC), Water Quality, Wisconsin, chemistry, invertebrates, monitoring, pesticides, pollution, sediment, toxicity, Fewer tags Aqueous Phases of Bifenthrin in Mesocosms Direct and indirect ecological effects of the widely used insecticide bifenthrin on stream ecosystems are largely unknown. To investigate such effects, a manipulative experiment was conducted in stream mesocosms that were colonized by aquatic insect communities and exposed to bifenthrin-contaminated sediment; implications for natural streams were interpreted through comparison of mesocosm results to a survey of 100 Midwestern streams, USA. In the mesocosm experiment, direct effects of bifenthrin exposure included reduced larval macroinvertebrate abundance, richness, and biomass at concentrations (EC50s ranged 197.6 – 233.5 ng bifenthrin/ g organic carbon) previously thought safe for aquatic life. Indirect effects... Categories: Data; Types: Citation; Tags: Illinois, Indiana, Iowa, Kansas, Kentucky, All tags... Michigan, Midwest United States, Minnesota, Missouri, Nebraska, Ohio, South Dakota, Wisconsin, adult emergence, aquatic insect communities, aquatic-terrestrial linkages, bifenthrin, contaminants, mesocosm, pesticides, sediment quality, suspended sediment, trophic cascade, water quality, Fewer tags Characteristics of Spikes Delivered to Mesocosms Direct and indirect ecological effects of the widely used insecticide bifenthrin on stream ecosystems are largely unknown. To investigate such effects, a manipulative experiment was conducted in stream mesocosms that were colonized by aquatic insect communities and exposed to bifenthrin-contaminated sediment; implications for natural streams were interpreted through comparison of mesocosm results to a survey of 100 Midwestern streams, USA. In the mesocosm experiment, direct effects of bifenthrin exposure included reduced larval macroinvertebrate abundance, richness, and biomass at concentrations (EC50s ranged 197.6 – 233.5 ng bifenthrin/ g organic carbon) previously thought safe for aquatic life. Indirect effects... Categories: Data; Types: Citation; Tags: Illinois, Indiana, Iowa, Kansas, Kentucky, All tags... Michigan, Midwest, Minnesota, Missouri, Nebraska, Ohio, South Dakota, Wisconsin, adult emergence, aquatic insect communities, aquatic-terrestrial linkages, bifenthrin, contaminants, mesocosm, pesticides, sediment quality, suspended sediment, trophic cascade, water quality, Fewer tags Pesticide concentration and streamflow datasets used to evaluate pesticide trends in the Nation’s rivers and streams, 1992-2012 In 1991, the U.S. Geological Survey (USGS) began a study of more than 50 major river basins across the Nation as part of the National Water-Quality Assessment (NAWQA) project of the National Water-Quality Program. One of the major goals of the NAWQA project is to determine how water-quality conditions change over time. To support that goal, long-term consistent and comparable monitoring has been conducted on streams and rivers throughout the Nation. Outside of the NAWQA project, the USGS also has collected long-term water-quality data to support additional assessments of changing water-quality conditions. These data have been combined to provide insight into how natural features and human activities have contributed... Categories: Data; Types: Citation; Tags: National Water Quality Program, USGS Science Data Catalog (SDC), United States, Water Quality, pesticides, All tags... streamflow, trends, usgsnawqaswtrends, water quality, Fewer tags Insecticide and fungicide concentrations in irrigation runoff and soils from a lettuce field in the Salinas Valley, California, 2019 and 2020 Irrigation runoff and soil samples were collected from a lettuce field located at the USDA-ARS Spence Research farm in the Salinas Valley, California to measure neonicotinoid insecticides (clothianidin and imidacloprid) and a fungicide (azoxystrobin) applied via coated seed and drench treatments. The field trial was designed to evaluate four treatments with replication: 1) control, untreated seed, 2) imidacloprid treated seed, 3) clothianidin treated seed, and 4) azoxystrobin treated seed with an imidacloprid drench. Samples were collected from each treatment over two lettuce growing seasons: August to October 2019 and September to October 2020. Runoff samples were collected over both growing seasons during 6 irrigation... Categories: Data; Tags: California, Salinas, Soil Sciences, USGS Science Data Catalog (SDC), Water Quality, All tags... Water Resources, contamination and pollution, environment, fungicides, insecticides, irrigation, pesticide and herbicide contamination, pesticides, seed treatment, soil drenching, soil resources, surface water quality, Fewer tags Pesticide concentrations in bees and other matrices collected from sunflower fields (with and without a neonicotinoid seed treatment) near Sacramento, California Hybrid sunflower production occurs near Sacramento in Northern California where seed treatments are commonly used. In this study, four locations were sampled in 2016 as matched pairs; half of each field was sown with thiamethoxam treated seed and half without. In addition to the thiamethoxam seed treatment, all seeds were coated with two fungicides, fludioxonil and mefenoxam/metalaxyl. Both wild bee and honey bee pesticide exposure was assessed by analyzing field soil, sunflower pollen and nectar, honey bees (pollen and nectar foraging) and a sunflower specialist wild bee, Melissodes agilis. Samples were extracted via pressurized liquid extraction (except nectar which underwent a room temperature solvent extraction)... Categories: Data; Tags: California, Environmental Health, USGS Science Data Catalog (SDC), environment, fungicides, All tags... herbicides, insecticides, non-Apis pollinators, pesticide and herbicide contamination, pesticides, pollinators, pollinators, Fewer tags Mapping of 101 agricultural pesticides annually for 2013-2017 for the conterminous United States This dataset consists of a series of 1-kilometer rasters which provide a mapping of the estimated use of 101 agricultural pesticide compounds for the conterminous United States. Each compound is mapped annually for the years 2013 through 2017, thus there are 505 rasters posted (101 compounds x 5 years). The datasets were created by taking previously-published county-level estimates of kilograms of agricultural pesticide use, then allocating them to agricultural pixels from the 2016 National Land Cover Database, aggregated to 1-kilometer spatial resolution. Categories: Data; Tags: Agriculture, Conterminous U.S., Dasymetric mapping, Land use, National Land Cover Database, All tags... Pesticides, USGS Science Data Catalog (SDC), United States, Water Quality, Water Resources, inlandWaters, Fewer tags Agricultural Pesticide Use Estimates for the USGS National Water Quality Network, 1992-2014: Version 2 The National Water Quality Network (NWQN) for Rivers and Streams includes 113 surface-water river and stream sites monitored by the U.S. Geological Survey (USGS) National Water Quality Program (NWQP). The NWQN represents the consolidation of four historical national networks: the USGS National Water-Quality Assessment (NAWQA) Project, the USGS National Stream Quality Accounting Network (NASQAN), the National Monitoring Network (NMN), and the Hydrologic Benchmark Network (HBN). The NWQN includes 22 large river coastal sites, 41 large river inland sites, 30 wadeable stream reference sites, 10 wadeable stream urban sites, and 10 wadeable stream agricultural sites. In addition to the 113 NWQN sites, 3 large inland river... Categories: Data; Tags: National Water Quality Program, USGS Science Data Catalog (SDC), United States, Water Quality, agriculture, All tags... pesticides, river systems, water-quality, Fewer tags Bifenthrin Absorption to Mesocosm Walls Resulting From the Delivery of a Bifenthrin Spiked Suspended Sediment Direct and indirect ecological effects of the widely used insecticide bifenthrin on stream ecosystems are largely unknown. To investigate such effects, a manipulative experiment was conducted in stream mesocosms that were colonized by aquatic insect communities and exposed to bifenthrin-contaminated sediment; implications for natural streams were interpreted through comparison of mesocosm results to a survey of 100 Midwestern streams, USA. In the mesocosm experiment, direct effects of bifenthrin exposure included reduced larval macroinvertebrate abundance, richness, and biomass at concentrations (EC50s ranged 197.6 – 233.5 ng bifenthrin/ g organic carbon) previously thought safe for aquatic life. Indirect effects... Categories: Data; Types: Citation; Tags: Illinois, Indiana, Iowa, Kansas, Kentucky, All tags... Michigan, Midwest United States, Minnesota, Missouri, Nebraska, Ohio, South Dakota, Wisconsin, adult emergence, aquatic insect communities, aquatic-terrestrial linkages, bifenthrin, contaminants, mesocosm, pesticides, sediment quality, suspended sediment, trophic cascade, water quality, Fewer tags Dryland Agricultural Land Use of Wyoming at 1:58,200 This dataset has been modified from its original version. the original aglands layer described below was modified by erasing the irrigated lands (2007) produced by the Wyoming Water Development Commission, resulting in a representation of dryland Agriculture in Wyoming. NOTE: this data was modeled as noted below, and should be used with caution. "This dataset represents croplands of Wyoming as interpreted from 1:58,200-scale National High Altitude Program (NHAP) color infrared aerial photography. The photos, which were taken in 1980-1982, were interpreted and land use designations were hand-drawn onto plots produced at the same scale as the photos, using a light table. Valid polygons include irrigated croplands,... Categories: Data; Types: Downloadable; Tags: Ag, Agriculture, Croplands, Dryland, Pesticides, All tags... Wyoming, environment, farming, inlandWaters, Fewer tags Daily streamflow datasets used to analyze trends in streamflow at sites also analyzed for trends in water quality and ecological condition in the Nation's rivers and streams (input) In 1991, the U.S. Geological Survey (USGS) began a study of more than 50 major river basins across the Nation as part of the National Water-Quality Assessment (NAWQA) project of the National Water-Quality Program. One of the major goals of the NAWQA project is to determine how water-quality conditions change over time. To support that goal, long-term consistent and comparable monitoring has been conducted on streams and rivers throughout the Nation. Outside of the NAWQA project, the USGS and other Federal, State, and local agencies also have collected long-term water-quality data to support their own assessments of changing water-quality conditions. Data from these multiple sources have been combined to support... Categories: Data; Types: Citation; Tags: Puerto Rico, United States, daily streamflow, ecological streamflows, loads, All tags... pesticides, usgsnawqaswtrends, water quality, Fewer tags Pesticide recovery data for surface-water and lab reagent samples analyzed by the USGS National Water Quality Laboratory schedule 2437, water years 2016-17 This data release contains two tables-one table of field spike recovery data and one table of lab reagent spike recovery data-for pesticides and pesticide degradates analyzed by the USGS National Water Quality Laboratory (NWQL) schedule 2437, and associated metadata. The table of field spike recovery data includes results from paired environmental and spike samples collected by the National Water Quality Program, National Water-Quality Assessment (NAWQA) Project in surface water. The table of lab reagent spike data contains quality-control sample information stored in the NWQL database. Both tables include fields for data-quality indicators that are described in the data processing steps of the metadata file.... Categories: Data; Tags: NAWQA, National Water Quality Assessment, USGS Science Data Catalog (SDC), United States, Water Quality, All tags... pesticides, quality control, water quality, Fewer tags Collection of Pesticides and Other Water Quality Analytical Data from Selected Hydrogeologic Regions of Pennsylvania These datasets contain all publicly available analytical data collected by the U.S. Geological Survey (USGS) at each location sampled by the Pennsylvania Pesticides in Vulnerable Groundwaters program from 2021 and 2022. Additional analytical data will be appended following the conclusion of each sampling season, and all data is made publicly available in the on-line National Water Information System (NWIS). The Pennsylvania Pesticides in Vulnerable Groundwater program is a long running cooperative effort between USGS and the Pennsylvania Department of Agriculture (PDA). USGS and PDA have sampled for pesticides and a variety of other constituents in domestic groundwater at locations around the state since 2003.... Categories: Data; Tags: Groundwater Quality, Hydrology, Hydrology, Pennsylvania, Pesticides, All tags... USGS Science Data Catalog (SDC), Water Quality, Water Resources, Fewer tags Concentration of Bifenthrin in Adult Insects That Emerged from Mesocosms Direct and indirect ecological effects of the widely used insecticide bifenthrin on stream ecosystems are largely unknown. To investigate such effects, a manipulative experiment was conducted in stream mesocosms that were colonized by aquatic insect communities and exposed to bifenthrin-contaminated sediment; implications for natural streams were interpreted through comparison of mesocosm results to a survey of 100 Midwestern streams, USA. In the mesocosm experiment, direct effects of bifenthrin exposure included reduced larval macroinvertebrate abundance, richness, and biomass at concentrations (EC50s ranged 197.6 – 233.5 ng bifenthrin/ g organic carbon) previously thought safe for aquatic life. Indirect effects... Categories: Data; Types: Citation; Tags: Illinois, Indiana, Iowa, Kansas, Kentucky, All tags... Michigan, Midwest United States, Minnesota, Missouri, Nebraska, Ohio, South Dakota, Wisconsin, adult emergence, aquatic insect communities, aquatic-terrestrial linkages, bifenthrin, contaminants, mesocosm, pesticides, sediment quality, suspended sediment, trophic cascade, water quality, Fewer tags General Water Chemistry and Temperature Data from Mesocosms Exposed to Bifenthrin Direct and indirect ecological effects of the widely used insecticide bifenthrin on stream ecosystems are largely unknown. To investigate such effects, a manipulative experiment was conducted in stream mesocosms that were colonized by aquatic insect communities and exposed to bifenthrin-contaminated sediment; implications for natural streams were interpreted through comparison of mesocosm results to a survey of 100 Midwestern streams, USA. In the mesocosm experiment, direct effects of bifenthrin exposure included reduced larval macroinvertebrate abundance, richness, and biomass at concentrations (EC50s ranged 197.6 – 233.5 ng bifenthrin/ g organic carbon) previously thought safe for aquatic life. Indirect effects... Categories: Data; Types: Citation; Tags: Illinois, Indiana, Iowa, Kansas, Kentucky, All tags... Michigan, Midwest United States, Minnesota, Missouri, Nebraska, Ohio, South Dakota, Wisconsin, adult emergence, aquatic insect communities, aquatic-terrestrial linkages, bifenthrin, contaminants, mesocosm, pesticides, sediment quality, suspended sediment, trophic cascade, water quality, Fewer tags Groundwater-quality data in the Modesto-Turlock-Merced Domestic-Supply Aquifer Study Unit, 2020-2021: Results from the California GAMA Priority Basin Project The U.S. Geological Survey collected groundwater samples from 71 wells used for domestic and small system drinking water supplies in Stanislaus and Merced counties of California during 2020-2021. The wells were sampled for the Modesto-Turlock-Merced Domestic-Supply Aquifer Study Unit of the State Water Resources Control Board Groundwater Ambient Monitoring and Assessment (GAMA) Program Priority Basin Project’s assessment of the quality of groundwater resources used for domestic and small system drinking water supplies. The study unit was defined by the extent of the Modesto, Turlock, and Merced subbasins of the San Joaquin Valley groundwater basin. The study unit was divided into 62 grid cells and one or more domestic... Categories: Data; Tags: California, Field parameters, Groundwater, Major ions, Merced County, All tags... Modesto, National Water Quality Laboratory (NWQL), Nutrients, PFAS, Pesticides, Stanislaus County, Trace elements, Turlock, USGS Science Data Catalog (SDC), Volatile organic compounds, Water Quality, Water quality, geoscientificInformation, Fewer tags Amphibian Occupancy and Effects of Habitat Use on Pesticide Exposure in Iowa Wetlands Amphibians living in agricultural areas encounter many challenges. Two factors affecting individuals in these landscapes are habitat loss and pesticides. This thesis focuses on amphibians using agricultural wetlands in Iowa, where row crops such as corn and soybeans dominate the landscape. The goal of my first study was to determine the influences of site characteristics on amphibian presence and success. I used occupancy analysis to estimate proportion of area occupied by four species as a function of eight covariates hypothesized to affect occupancy: fish abundance, salamander abundance, invertebrate density, vegetative cover, wetland area, water atrazine concentration, surrounding crop land use, and overall wetland... Categories: Data; Tags: Agriculture, Amphibian, Ecology, Environmental Health, Known Fate, All tags... Occupancy, Passive Sampling Device, Pesticides, USGS Science Data Catalog (SDC), Wildlife Biology, biota, Fewer tags 1 2 3 »