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Filters Contacts (Less) Michelle L Hladik U.S. Geological Survey U.S. Geological Survey - ScienceBase California Water Science Center Michael S Gross Kelly Smalling Ecosystems Water Resources Kristin M Romanok Corey J Sanders Matthew Uychutin Matthew D De Parsia Shannon M Meppelink Paul M Bradley James L Orlando Leslie K Kanagy R Blaine McCleskey U.S. Geological Survey, SOUTHWEST REGION James L Gray Kathryn M Kuivila New Jersey Water Science Center Johanna M Kraus Gabrielle P Black David A Roth Central Midwest Water Science Center Luke Iwanowicz Cassandra D Smith Barbara J Mahler Patrick W Moran South Atlantic Water Science Center Barnett A Rattner Environmental Health Columbia Environmental Research Center Oklahoma-Texas Water Science Center Oregon Water Science Center Jeanne B Jaeschke Dana W Kolpin Keith A Loftin Michaelah C Wilson Carrie E Givens Jason R Masoner Rachael F Lane CERC Data Managers Lisa H Nowell Travis S Schmidt Adam Boehlke John F. Bunnell Kim J. Laidig Laura T. Ward Marilyn C. Sobel More... View Results as: JSON ATOM CSV

Target-chemical concentrations and microbiological results in surface water and tapwater, Montana, 2022 This data release contains the concentration and quality-assurance results for inorganic constituents, as well as organic compounds (volatile organic compounds [VOC], per- and polyfluoroalkyl substances [PFAS], pesticides and disinfection byproducts [DBP]) and microbiological results collected in the Little Big Horn River and residential or commercial tapwater locations in Montana. Twenty-two tapwater samples (six sourced from public supply and 14 sourced from private wells) and six surface-water samples were collected in Montana between August 8-10, 2022. Pharmaceuticals, VOC, and PFAS were analyzed at the U.S. Geological Survey (USGS) National Water Quality Laboratory (NWQL) in Denver, Colorado. Pesticides and... Categories: Data; Tags: Environmental Health, Montana, USGS Science Data Catalog (SDC), United States, Water Quality, All tags... drinking water use, environment, environmental health (human), geoscientificInformation, health, inorganic analytes, organic contaminants, point-of-use exposure, surface water, tapwater, water quality, 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 Adult aquatic insect emergence, insect pesticide concentrations and water chemistry of wetlands in the Prairie Pothole Region, North Dakota, USA, 2015-16 This data release includes sampling location data, field-collected wetland attribute data, field-collected water chemistry data, laboratory-processed water chemistry data (anions, cations, alkalinity, nutrients, chlorophyll a concentrations, dissolved organic carbon, and specific ultraviolet absorbance, pesticide concentrations), dry mass of adult aquatic insects emerging from the surface of the wetlands, taxonomic classifications of the insects collected, and whole-body pesticide concentrations for adult aquatic insects emerging from wadeable wetlands in cropland and grassland landscapes across a salinity/hydrology gradient (N = 14 wetlands in 2015, N = 15 wetlands in 2016). Sampling was completed in late spring,... Tags: Agriculture, Aquatic Biology, Aquatic Insects, Aquatic-terrestrial linkages, Current use pesticides, All tags... Emergence, Emergence traps, Environmental Health, Food web, Imidacloprid, Metamorphosis, North Dakota, Pesticides, Prairie Pothole Region, Stutsman County, USGS Science Data Catalog (SDC), Wetland, biota, Fewer tags Pesticide Concentrations Measured in Zooplankton Samples Collected from the Sacramento River and Yolo Bypass, California, 2021 Zooplankton samples were collected at one site upstream of the Yolo Bypass in Northern California, three sites within the Bypass, and at a comparison site on the Sacramento River below the city of Sacramento and analyzed for a large suite of current-use pesticides and degradates. Samples were collected every two weeks from early August 2021 to mid-October 2021. Samples were collected by towing a 150-micron conical plankton net for 5 minutes by boat at each site. In the laboratory, zooplankton samples were filtered through a 63-micrometer sieve to separate the zooplankton and vegetation/detritus from the water. Large sticks, twigs, rocks, and leaves were rinsed with organic free water into the sieve and then discarded.... Categories: Data; Tags: California, Environmental Health, Hydrology, Sacramento, USGS Science Data Catalog (SDC), All tags... Water Quality, Zooplankton, environment, pesticide and herbicide contamination, 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 Current-use pesticides in tree swallow (Tachycineta bicolor) prey Analysis of biological tissues or direct sources of food may better characterize exposure of non-target organisms to current-use pesticides. Food boluses were collected from tree swallow (Tachycineta bicolor) nestlings using a non-lethal, ligature method and were composited based on nest. The ligatures, which prevented the bolus from being swallowed, were placed on nestlings for 1 h until samples were collected. Samples in 2016 were collected from nestlings at 6 days and 12 days post-hatch whereas 2018 samples were collected from nestlings at 12 days post-hatch. Furthermore, in 2016 and 2018, insects commonly consumed by tree swallows were collected via sweep net and composited based on suborder (Brachycera, Nematocera,... Categories: Data; Tags: Burr, Colonsay, Environmental Health, Humboldt, North America, All tags... Prairie Pothole Region, Prairie Pothole Region, Saskatchewan, St-Denis, Tachycineta bicolor, USGS Science Data Catalog (SDC), bolus, environment, gas chromatography, high performance liquid chromatography, insects, mass spectrometry, nestlings, pesticide residues, Fewer tags Analysis of Polyphenols in Water Primrose (Ludwigia hexapetala) Plants from the Sacramento-San Joaquin Delta of California Water primrose (Ludwigia hexapetala) is an invasive aquatic plant that has rapidly increased in coverage throughout the Sacramento-San Joaquin Delta. Water primrose has invaded wetlands and may contribute towards mortality of tules (Schoenoplectus spp.) and cattails (Typha spp.). Little research has been completed on the mechanisms responsible for marsh loss, but previous studies have suggested that water primrose contains allelopathic chemicals that could cause plant mortality. Three major allelopathic polyphenols (myricitrin, prunin, and quercitrin) previously identified in L. hexapetala leaves were measured in leaf, water, and soil samples from Delta marshes infested with water primrose. Samples were collected... Categories: Data; Tags: Big Break, Ecology, Environmental Health, Latham Slough, Liberty Island, All tags... North America, Rhode Island, Sacramento-San Joaquin Delta, San Joaquin Delta, Sherman Lake, USGS Science Data Catalog (SDC), Venice Cut, Water Quality, ecological competition, environment, invasive species, liquid chromatography, mass spectroscopy, water quality, Fewer tags Current use pesticides in larval amphibian tissues, amphibian pathogen and wetland sediment screening data from three northeastern National Wildlife Refuges, 2013-14 The data include concentrations of current use pesticides in tissues of larval wood frog (Lithobates sylvaticus) and spotted salamander (Ambystoma maculatum) and the presence of ranavirus in wood frogs and spotted salamanders from three northeastern National Wildlife Refuges sampled in 2013 and 2014. The data also include estrogenicity, protein phosphatase 2A inhibition and a suite of 15 major and minor elements in sediment screened using portable X-Ray Fluorescence. The data include sediment and tissue samples collected from 16 wetlands at the Patuxent Research Refuge (PRR) in central Maryland, USA, 15 wetlands at the Assabet River and Oxbow National Wildlife Refuges (EMASS) in eastern Massachusetts, USA, and nine... Tags: Aquatic Biology, Environmental Health, Maryland, Massachusetts, USGS Science Data Catalog (SDC), All tags... Water Quality, Wildlife Biology, Wildlife Disease, amphibians, biota, endocrine disruption, frog, inlandWaters, metal elements, pesticides, salamander, wetland ecosystems, wildlife disease, Fewer tags Pesticide residues in monarch butterflies collected from Pacific Grove, California, USA in January 2024 In January 2024 adult monarch butterflies (Danaus plexippus (Linnaeus, 1758)) were found dead near their overwintering site in Pacific Grove, Monterey County, California, USA. Ten of the deceased monarchs (six females and four males) were collected from three sites by staff at the Pacific Grove Museum of Natural History and sent to the U.S. Geological Survey Organic Chemistry Research Laboratory for analysis. Each individual adult monarch was analyzed following methods in Black et al., 2023 and Gross et al., 2024a and 2024b for 181 pesticides and pesticide transformation products; 15 pesticides were detected and included 8 insecticides/insecticide transformation products, 2 fungicides, and 4 herbicides/herbicide... Tags: California, Environmental Health, Fungicide, Herbicide, Insecticide, All tags... Pesticide, USGS Science Data Catalog (SDC), biota, butterflies and moths, environment, pesticide and herbicide contamination, Fewer tags Multiresidue extraction of current-use pesticides from complex solid matrices using energized dispersive extraction with analysis by gas and liquid chromatography tandem mass spectroscopy A multiresidue method for solids (i.e., soil, sediment, sludge) was developed and evaluated for the analysis of pesticides and pesticide degradates. Initially, a well characterized soil was used to determine the recovery of target compounds using an Energized Dispersive Guided Extraction (EDGE) system with two extraction solvents, acetonitrile and 1:1 (v/v) hexane:acetone. Extracts were cleaned using solid-phase extraction (SPE) with graphitized carbon cartridges and three elution solvents, acetonitrile, dichloromethane, and 1:1 (v/v) dichlormethane:ethyl acetate. The individual SPE elutions from the two extraction solvents were analyzed separately via GC-MS/MS and LC-MS/MS for 210 pesticides and pesticide transformation... Categories: Data; Tags: Environmental Health, USGS Science Data Catalog (SDC), biosolids, contaminant transport, environment, All tags... gas chromatography, liquid chromatography, mass spectrometry, pesticide and herbicide contamination, sediment, soil, Fewer tags Current-use pesticides, nutrients, chloride, and metals in ponds and stormwater basins of the New Jersey Pinelands, 2018-20 The data presented in this data release include concentrations of current-use pesticides, nutrients, chloride, and metals in surface water collected from 60 wetlands including natural ponds, excavated ponds (Xponds), and stormwater basins in the New Jersey Pinelands, 2018-20. Site information, basic water-quality parameters, and method information also are included. Tags: Environmental Health, Hydrology, New Jersey, New Jersey Pinelands, USGS Science Data Catalog (SDC), All tags... Water Quality, Water Resources, chloride, environment, inlandWaters, metal elements, nutrient content (water), pesticide and herbicide contamination, ponds, stormwater basins, surface water quality, Fewer tags Results from U.S. Geological Survey Environmental Health Food Resources Lifecycle Integrated Science Team, Graton Pesticides (GRAPE) Study, in Graton, California, April–May 2021 In the spring of 2021, six households with private wells were selected throughout Graton, California, based on proximity to agriculture (within one mile of agriculture), well depth (i.e., less than 150 feet in depth), and well type (i.e., dug versus drilled). Silicone bands were deployed for 30 days at outdoor locations at each household to passively sample pesticides in ambient air. On May 3, 2021, the silicone bands were retrieved and outdoor water samples (i.e., spigot on the side of the house) and indoor tap water samples (i.e., kitchen faucet used for drinking water) were collected and analyzed for 187 pesticides, 57 potential hormonally active chemicals, and estrogenicity. This study was a citizen science... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Environmental Health, USGS Science Data Catalog (SDC), Water Quality, Water Quality Chemical Concentrations and Microbiological Results for Assessment of Mixed-Organic/Inorganic Chemical Exposures in Tapwater in Mead, Nebraska, June 2022 and January 2023 In the United States and globally, the lack of data on contaminant exposure from unregulated private-well point-of-use (POU) tapwater (TW) is a recognized public health data gap and an obstacle to risk management and homeowner decision making. Mead, Nebraska, is an agricultural community about 30 miles west of Omaha. To help address the lack of data on broad contaminant exposures in TW sourced from private water wells, a total of 22 samples were collected from 18 private wells during June 2022 and January 2023 and analyzed for 495 organic compounds, 34 inorganic constituents, and 11 microbial groups. The organic compounds included pesticides, pharmaceuticals, volatile organic compounds (VOCs), disinfection byproducts... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Environmental Health, Nebraska, USGS Science Data Catalog (SDC), Water Quality, biota, All tags... environmental health, inorganic constituents, microbial constituents, organic constituents, private well, tap water, tapwater, Fewer tags Pesticide concentrations in surface waters of the Sacramento Valley rice-growing region, 2010 Surface water samples were collected from four stream/agricultural drain sites in the Sacramento Valley of California to measure pesticides commonly applied to rice. Samples were collected weekly from May through August 2010 to capture the rice pesticide application season. Water samples were filtered (0.7 µm) and extracted via solid-phase extraction. Additionally, the filter paper was solvent extracted to measure suspended sediment-associated pesticides. Both fractions were analyzed via gas chromatography-mass spectrometry. A total of 89 pesticides and pesticide degradates were measured in the dissolved water phase, while 14 pyrethroid insecticides were measured in the suspended sediment-associated fraction (pyrethroids... Categories: Data; Tags: California, Environmental Health, Sacramento Valley, USGS Science Data Catalog (SDC), Water Quality, All tags... contamination and pollution, environment, fungicides, herbicides, insecticides, pesticide and herbicide contamination, pesticides, surface water quality, suspended material (water), water quality, Fewer tags Current-use pesticides and emerging amphibian pathogens in natural ponds, excavated ponds, and stormwater basins from 24 sites varying in land-use classifications throughout the New Jersey Pinelands, 2014-2016 Water, sediment, anuran food (leaf litter and detritus) and whole body larval amphibian composites were analyzed for over 100 current-use pesticides from 24 wetlands representing land-use gradients in the New Jersey Pinelands, USA during 2014-2016. Emerging amphibian pathogens, Ranavirus and Batrachochytrium dendrobatidis (Bd) were also assessed in individual larvae at the 24 wetlands. Tables in this data release contain the results from these analyses, with quality assurance summaries, along with site information, including land-use classifications. Categories: Data; Tags: Aquatic Biology, New Jersey, Pinelands, USGS Science Data Catalog (SDC), Water Quality, All tags... Wildlife Biology, Wildlife Disease, amphibian disease, amphibian food, amphibians, land-use metrics, pesticides, ponds, sediment-quality, storm-water basins, tissue, water quality, Fewer tags Target-chemical concentrations and bioassay results for assessment of mixed-organic/inorganic chemical and biological exposures in Minneapolis/St Paul, Minnesota tapwater, August 2019 This dataset contains the concentration and quality assurance results for inorganic and organic analytes collected for the U.S. Geological Survey (USGS), Ecosystems Mission Area, Environmental Health Infrastructure Program, Tapwater Exposure Project conducted in Minnesota, in August of 2019. Samples were obtained from multiple publicly distributed water sources in Minnesota in 2019. Due to privacy concerns, the exact location where samples were collected are not reported and station identification numbers have been anonymized. Water-quality samples were analyzed for pesticides, pharmaceuticals, volatile organic compounds and per- and polyfluoroalkyl substances at the USGS National Water Quality Laboratory (NWQL),... Tags: Environmental Health, Minneapolis, Minnesota, St. Paul, USGS Science Data Catalog (SDC), All tags... United States, Water Quality, drinking water treatment, drinking water use, environment, environmental health (human), geoscientificInformation, health, inorganics, organics, point of use, tapwater, water quality, Fewer tags Pesticides in pollinator tissue collected from margins near agricultural fields in Conservation Areas of Missouri Wild bee and butterfly samples were collected from the margins of agricultural fields located on five Conservation Areas in Missouri. In 2016 and 2017, samples were collected and composited by genera for a total of 90 samples. Samples were extracted via pressurized liquid extraction and solid phase extraction cleanup. Samples were analyzed for 168 pesticides and degradates using both gas and liquid chromatography-tandem mass spectrometry. Overall, 16 pesticides were detected. Pesticides detected in greater than 2% of the composite samples included: metolachlor (24%), tebuconazole (22%), atrazine (18%), imidacloprid desnitro (13%), bifenthrin (9%), flumetralin (9%), p,p’-DDD (6%), tebupirimfos (4%), fludioxonil (4%),... Categories: Data; Tags: Missouri, North America, USGS Science Data Catalog (SDC), biota, butterflies, All tags... conservation areas, environment, non-Apis pollinators, pesticide and herbicide contamination, pesticide residues, pollinators, pollinators, Fewer tags Pesticide detections in streams throughout the foothills of the Sierra Nevada range using passive samplers from 2017 to 2019 This dataset was produced from analyzing Affinisep SDB-RPS, Affinisep HLB, and Restek Resprep C18 disks that were deployed with the use of Chemcatcher® passive sampling devices. Silicone bands were also deployed and used for exploring economical methods of sampling for pesticides in surface water. Sampling assemblies were deployed in streams throughout the foothills of the Sierra Nevada range and California's northern Central Valley from 2017 to 2019. Samples were extracted in situ then eluted and concentrated at the Organic Chemistry Research Laboratory in Sacramento, CA. Samples from silicone bands were extracted via agitation in appropriate solvents. Samples were analyzed for a suite of 155 pesticides and degradates... Categories: Data; Tags: Affinisep, C18, California, Chemcatcher, Degradates, All tags... Gas Chromatography, HLB, Honcut Creek, Hydrology, Liquid Chromatography, Mass Spectrometry, North Fork Calaveras River, Oregon Creek, Pesticides, Rattlesnake Creek, Redding, Resprep, Restek, SDB-RPS, SPE, Sacramento River, Sierra Nevada, Silicone Bands, Solid Phase Extraction, South Fork American River, Surface water, USGS Science Data Catalog (SDC), United States, Water Quality, environment, inlandWaters, Fewer tags Pesticide Concentrations Measured in Zooplankton Samples Collected from the Sacramento River and Yolo Bypass, California, 2017-2020 Zooplankton samples were collected at a site in the Yolo Bypass in Northern California and at a comparison site on the Sacramento River below the city of Sacramento and analyzed for a large suite of current-use pesticides and degradates. Samples were collected biweekly in the summer/fall 2017 and 2018, and from May 2019−March 2020. Samples were collected by towing a 150-micron conical plankton net for 5 minutes by boat at each site. In the laboratory, zooplankton samples were filtered through a 63-micrometer sieve to separate the zooplankton and vegetation/detritus from the water. Large sticks, twigs, rocks, and leaves were rinsed with organic free water into the sieve and then discarded. The remaining mass in the... Categories: Data; Tags: California, Environmental Health, Hydrology, Sacramento, USGS Science Data Catalog (SDC), All tags... Water Quality, Zooplankton, environment, pesticide and herbicide contamination, Fewer tags Water-quality results from a wastewater reuse study: Inorganic and organic compositions of wastewater effluent and select urban and agricultural water types during rain-induced runoff, Chickasha, Oklahoma, 2018-2019 Oklahoma State University South-Central Research Station (SCRS) was used to conduct research to understand the chemical composition of various water types and their potential environmental and human health effects. The study area provided the opportunity to study five water types: (1) receiving surface water (Washita River), (2) urban stormwater, (3) wastewater treatment plant effluent used for irrigation, (4) rain-induced runoff from an effluent-irrigated cornfield, and (5) rain-induced runoff from a dryland cornfield. Fifteen water samples were collected from August 2018 to October 2019. In addition, two composite above ground whole-corn plant samples (i.e., stem, leaves, grain) were collected from the effluent... Tags: Chickasha, Energy Resources, Environmental Health, Geochemistry, Grady, All tags... Oklahoma, PFAS, USGS Science Data Catalog (SDC), Washita, Water Quality, Water Resources, agricultural runoff, agricultural sites, agriculture, disinfection byproducts, dissolved organic compounds, environment, herbicides, hormones, household chemicals, industrial chemicals, nutrient content (water), pesticides, pharmaceuticals, runoff, treated effluent, urban stormwater, wastewater treatment, water chemistry, water quality, water reclamation, water reuse, water sampling, Fewer tags 1 2 »