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Model parameter input files to compare effects of stream discharge scenarios on sediment deposition and concentrations around coral reefs off west Maui, Hawaii This dataset consists of physics-based Delft3D model and Delwaq model input files used in modeling sediment deposition and concentrations around the coral reefs of west Maui, Hawaii. The Delft3D models were used to simulate waves and currents under small (SC1) and large (‘SC2’) wave conditions for current stream discharge (‘Alt1’) and stream discharge with watershed restoration (‘Alt3’). Delft3D model results were subsequently used as forcing conditions for Delwaq models to simulate sediment transport and dispersion. The Delwaq models were used to simulate sediment transport and concentrations under the same two wave and stream discharge scenarios. The Delwaq models were run using forcing conditions generated by... Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Environmental Health, Geography, Geomorphology, All tags... Hydrology, Island of Maui, Land Use Change, Marine Geology, PCMSC, Pacific Coastal and Marine Science Center, Sedimentology, State of Hawaii, U.S. Geological Survey, USGS, coastal processes, coastal processes, coral reefs, geoscientificInformation, hazards, numerical modeling, oceans, reef, water circulation, water column features, waves, Fewer tags Maternal Transfer of Mercury to Northern Elephant Seal Pups We used free-ranging northern elephant seals as a model species to investigate maternal transfer of mercury (Hg) to pups in relation to maternal traits, including maternal blood mercury concentrations, and to quantify the links between pup lanugo mercury concentrations and maternal mesopelagic foraging behavior during gestation. We satellite tracked known-age adult females at sea during their seven-month-long foraging trip to determine maternal foraging strategies (geographic locations and diving depths) and quantified mercury concentrations in maternal blood and their pups’ blood and lanugo (which is defined as pup hair grown in utero) early in lactation when seals were hauled out. We then tested how the maternal... Categories: Data; Tags: Ecology, Environmental Health, Marine Oceanic Mesopelagic Layer, USGS Science Data Catalog (SDC), Wildlife Biology, All tags... bioaccumulation, biota, contaminant transport, ecology, ecotoxicology, mercury, mercury contamination, seals, sea lions and walruses, 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 Volatile organic compound, polychlorinated biphenyl, and biogeochemical data from passive samplers and laboratory experiments for wetland bioremediation study, Standard Chlorine of Delaware, Inc. Superfund Site, New Castle County, Delaware, 2019–2021 This metadata record contains 15 tables with results from field and laboratory tests used to assess bioremediation in wetland areas at the Standard Chlorine of Delaware, Inc. Superfund site, New Castle County, Delaware, during 2019-2021. Included in the dataset are (1) polychlorinated biphenyl (PCB) concentrations in wetland sediment from sediment microcosm laboratory experiments, (2) chlorobenzene concentrations in wetland sediment from sediment microcosm laboratory experiments, (3) polychlorinated biphenyl concentrations from PCB microcosm laboratory experiments using polyethylene strips, (4) chlorobenzene concentrations from PCB microcosm laboratory experiments using polyethylene strips, (5) total iron and ferrous... Categories: Data; Tags: Delaware, Delaware City, Environmental Health, Geochemistry, New Castle, All tags... Standard Chlorine of Delaware, Inc. Superfund site, Superfund site, USGS Science Data Catalog (SDC), Water Quality, bioavailability, bioremediation, chlorobenzene, compost microcosm, contamination and pollution, environment, geoscientificInformation, industrial pollution, iron, methane, microcosm, passive sampling, polychlorinated biphenyls, remediation, sediment, volatile organic compound, wetland ecosystems, Fewer tags Microplastics in the water column and sediment in Milwaukee-Area streams, the Milwaukee Harbor, and Lake Michigan, 2016 This dataset describes the quantity, morphology, and polymer identity of microplastics in the water column and surficial sediments of Milwaukee-Area streams, the Milwaukee Harbor, and Lake Michigan (Wisconsin). Water samples were collected at 10 locations, 2-4 times each, from May to September, 2016. At the 4 shallowest locations, water was collected only at the water surface. At the remaining 6 locations, water was collected at the water surface and at 1-4 depths below the surface. Sediment samples were collected once, in June 2016, at a subset of 9 locations. Sampling and analysis methods are described in the Processing Steps section of the metadata. These data are interpreted in the following journal article:... Categories: Data; Tags: Environmental Health, Hydrology, Lake Michigan, Milwaukee, USGS Science Data Catalog (SDC), All tags... Water Quality, Water Resources, Wisconsin, contamination and pollution, inlandWaters, microplastics, runoff, surface water quality, Fewer tags 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 Mercury Stable Isotope Assessment of Global Food Webs This dataset describes mercury (Hg) stable isotope values in fish dorsal muscle from different freshwater environments across the globe. Fish were collected at numerous field sites in North America, South and Central America, Africa, and Asia from 2006-2020. Sub-samples were provided by cooperators to the U.S. Geological Survey Mercury Research Laboratory and the University of Wisconsin for mercury stable isotope analysis. Samples were analyzed for mercury stable isotopes from 2017-2021. These specimens represent multiple trophic levels and body sizes from different food webs and when adequate mass was available, multiple species from the same food web were examined. Cooperators include, but are not limited to:... Categories: Data; Tags: Aquatic Biology, Botswana, Congo, Environmental Health, Gabon, All tags... Geochemistry, Ghana, Guatemala, Honduras, Kenya, Mongolia, Panama, Suriname, Tanzania, Thailand, USGS Science Data Catalog (SDC), United States, Venezuela, food web, isotopic analysis, mercury contamination, Fewer tags Assessment of Mercury and Mercury Stable Isotopes in Sediments and Biota from Reservoirs and Remedial Zones within the Saint Louis River, Minnesota This data release includes mercury concentrations and mercury stable isotope measurements measured in sediments and biological tissues collected from the Saint Louis River located in Minnesota. Sediments and biota were collected by the U.S. Geological Survey, U.S. Environmental Protection Agency, U.S. Army Corps of Engineers, and federal contractors (Battelle) from 2017-2021. Collection regions included nearshore zones within the main estuary, remedial sites within the lower river, and upstream reservoir sites. Sediments were analyzed for total mercury, methylmercury, and mercury stable isotopes by the U.S. Geological Survey Mercury Research Laboratory (MRL, Madison, Wisconsin). Biological samples were analyzed... Categories: Data; Tags: Environmental Health, Geochemistry, Saint Louis River, Minnesota, USGS Science Data Catalog (SDC), biota, All tags... food web, isotopic analysis, mercury contamination, Fewer tags Characteristics of Dust Associated with the Development of Rapidly Progressive Pneumoconiosis and Progressive Massive Fibrosis Research and surveillance reports have documented a significant increase in coal workers' pneumoconiosis, including the most severe forms of progressive massive fibrosis and rapidly progressive pneumoconiosis in U.S. coal miners, particularly those in Appalachian coalfields. Several possible explanations for these observations include excessive exposures to total respirable dust, increased exposure to freshly fractured silica and silicates, or greater exposure to smaller particles that may be the result of changing mining practices. This dataset contains the chemical and morphological characteristics of particulate matter retrieved from lung tissue slices of historical and contemporary miners. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Appalachia, Environmental Health, GGGSC, Geochemistry, Geology, Geophysics, and Geochemistry Science Center, All tags... Mineral Resources, USGS Science Data Catalog (SDC), United States, chemical analysis, grain-size analysis, health, mass spectroscopy, scanning electron microscopy, Fewer tags Geochemical data for post-fire surface water, streambed sediment, and soils from areas affected by the 2018 Camp Fire, Butte County, California During November 2018, the Camp Fire burned more than 150,000 acres in Butte County, California. The fire was the deadliest and most destructive in California history, destroying more than 18,000 structures and causing at least 85 fatalities. The U.S. Geological Survey sampled surface water in areas affected by the Camp Fire, plus an unburned control site, during two post-fire sampling events, January 21-23, 2019 and February 28 - March 1, 2019. During each of those two sampling events, surface-water samples were collected at 8 stream locations. These 16 water samples were filtered using filters with multiple pore sizes (1.2 µm, 0.8 µm, 0.45 µm, and 0.22 µm) to evaluate colloid transport of trace elements. The filtrates... Categories: Data; Tags: Butte County, California, Environmental Health, Geochemistry, Land Use Change, All tags... USGS Science Data Catalog (SDC), Water Quality, boundaries, fires, runoff, soil chemistry, surface water quality, suspended material (water), Fewer tags Hydroacoustic Data to Support Embayment Monitoring in Long Island Sound, Mystic and Norwalk Embayments, Connecticut, 2021-2022 This data release includes hydroacoustic data for the 2021 to 2022 water years at four stations. These stations are part of a discrete and continuous monitoring project in embayments on Long Island Sound to support nutrient management activities in Connecticut. The data were collected by the U.S Geological Survey (USGS) in cooperation with the Connecticut Department of Energy and Environmental Protection. The data were collected using acoustic doppler current profilers (ADCPs) sampling 134 parameters every six minutes. Recorded values above the water surface were removed from files using an R script. The ADCPs were deployed at upstream and downstream locations in the Mystic and Norwalk embayments. For the Mystic... Tags: Embayment Monitoring, Environmental Health, Hydrology, Long Island Sound, Mystic River at Mystic Seaport, All tags... Mystic River at Rams Island Yacht Club, Norwalk Harbor at the Cove Marina, Norwalk River at Norwalk Aquarium, USGS Science Data Catalog (SDC), Water Quality, Water Resources, biota, hydroacoustics, Fewer tags U.S. Geological Survey Soil Sample Archive The U.S. Geological Survey (USGS) Soil Sample Archive is a database of information describing soil and sediment samples collected in support of USGS science. Samples in the archive have been registered with International Generic Sample Numbers, relabeled with bar-coded sample labels, and repacked in containers for long-term preservation. Details of sample collection location, collection date, associated datasets, mass of remaining sample, storage locations, and other relevant information are tabulated here so that interested parties may identify associated datasets and search, sort, and gain access to archived samples. Categories: Data; Tags: Ecology, Environmental Health, Geochemistry, Geomorphology, Hydrology, All tags... Soil Sciences, USGS Science Data Catalog (SDC), geoscientificInformation, sample repositories, soil horizons, soil resources, soil sciences, Fewer tags Pilot Study of Per- and Polyfluoroalkyl Substances (PFAS) Infiltration to Shallow Groundwater Through Selected Soils in New Hampshire, 2023 In a study conducted by the U.S. Geological Survey (USGS) and the New Hampshire Department of Environmental Services, detectable concentrations of per- and polyfluoroalkyl substances (PFAS) were found in the soil at every site despite targeting locations with no known PFAS sources (Santangelo and others, 2022). The widespread distribution of PFAS concentrations in New Hampshire has since sparked critical interest into understanding whether recharge to groundwater contains significant concentrations of PFAS after infiltration through soils. To address this concern, the USGS implemented a pilot study designed to evaluate whether PFAS infiltrate through shallow soil into shallow groundwater. Five sites were selected... Categories: Data; Tags: Eastern United States, Environmental Health, Hydrology, New Hampshire, Northeast, All tags... PFAS, Soil Sciences, USGS Science Data Catalog (SDC), Water Quality, Water Resources, biota, chemical analysis, groundwater, hydrology, lysimeters, soil, Fewer tags Method development for determination of trace amounts of silicon in hydrofluoric acid digests of biological samples and lung biopsy tissues by ICP-MS A method was described for determination of trace levels of silicon by inductively coupled plasma mass spectrometry (ICP-MS) from hydrofluoric (HF) digests of biological samples. The volatility of silicon in HF digests was examined with synthetic solutions as well as soil and mine waste samples. A digestion scheme was optimized to achieve complete dissolution, avoid loss of volatile silicon species and produce sample solutions that can be directly analyzed by ICP-MS. The performance of the method performance was validated by analysis of a number plant and tissue certified reference materials for silicon by ICP-MS. The method was then applied to the determination of silicon from lung biopsy tissues obtained from... Categories: Data; Tags: Digestion, Elemental analysis, Environmental Health, GGGSC, Geochemistry, All tags... Geology, Geophysics, and Geochemistry Science Center, Inductively coupled plasma spectrometry, Lung tissue, MRP, Method development, Mineral Resources Program, Silicon, USGS Science Data Catalog (SDC), USGS:65440eebd34ee4b6e05bee4a, environment, health, Fewer tags Chemistry data from leachates of hydraulic fracturing proppants collected from southeastern New Mexico, 2018-2019 Proppants used during hydraulic fracturing of oil and gas wells are manufactured to maximize petroleum yield by controlling the size, shape, density, and strength of the proppant material. The most common types of proppants are mined silica sand and manufactured ceramics, some of which are further modified with organic resin coatings to improve performance. Much of the work on the environmental and human health effects of proppant releases into the environment has focused on occupational silicosis, with little attention given to the potential effects from the organic coatings on these materials. This oversight is especially relevant in the context of dumping of unwanted proppant on the land surface, which has been... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Energy Resources, Environmental Health, Geochemistry, New Mexico, USGS Science Data Catalog (SDC), All tags... chemical analysis, environment, geochemistry, geoscientificInformation, hydraulic fracturing, petroleum, 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 Polychlorinated biphenyl (PCB) data from instream water and sediment passive samplers, stream bank sediment, and catch basin sediment in the Clinton River Area of Concern, Michigan, USA, 2019 (Under Revision) Note: This data release is currently being revised and is temporarily unavailable. Two types of passive samplers for polychlorinated biphenyl (PCB) analysis were deployed in the Clinton River Area of Concern in 2019: semipermeable membrane devices for water and in-stream sediment samplers. Samplers were deployed in July 2019 and retrieved in August 2019. Additionally, bank sediment samples for PCB analysis were collected by the U.S. Geological Survey (USGS) in August 2019 and catch basin bottom material samples for PCB analysis were collected by LimnoTech in November 2019 under contract with the U.S. Army Corps of Engineers. These data are a part of a larger study and associated USGS report (https://doi.org/TBD). Categories: Data, Data Release - Under Revision; Tags: Clinton River, Environmental Health, Hydrology, Lake St. Clair, Macomb County, All tags... Michigan, Polychlorinated biphenyls (PCBs), Water Quality, Water Resources, environment, sediment contamination, Fewer tags Water chemistry and biological data of Rainbow Trout following aquatic exposure to weathered wildland fire retardants after application to substrate We investigated whether the length of time fire chemical weathers on a terrestrial substrate before mixing into aquatic environments alters the chemical’s toxicity when encountered by juvenile rainbow trout. We also looked at whether the type of substrate where the chemical is applied affects its toxicity to juvenile rainbow trout after mixing into water. Two fire chemicals (Phos Chek LC95A-R and Phos Chek MVP-Fx) were applied to four substrate media (low organic content soil, high organic content soil, duff, and gravel) and allowed to age on the substrate for 7, 14, 28 or 56 days. At the end of the assigned weathering period, 96-hour assays were conducted by adding water to the dosed substrate and stocking each... Categories: Data; Tags: Aquatic Biology, Boone County, Missouri, Columbia Environmental Research Center, Environmental Health, Fire suppression, All tags... USGS Science Data Catalog (SDC), ammonia, biota, ecotoxicology, fires, fish, Fewer tags Biological Indicators and Mercury Concentrations in Smallmouth Bass Biological indicators including morphometric (length, weight), age, sex and health indicators including organismal (health assessment index, condition factor), organ (hepatosomatic index, gonadosomatic index), cellular (intersex, parasite density, macrophage aggregate density), subcellular (plasma vitellogenin, estradiol, testosterone, 11-keto testosterone) and molecular (hepatic transcript abundance) were measured in smallmouth bass from tributaries in the Chesapeake Bay watershed. Total mercury was measured in these fish and correlations between mercury and biological indicators were assessed. Categories: Data; Tags: Antietam Creek, Aquatic Biology, Chillisqaque Creek, Environmental Health, Environmental Health, All tags... Monocacy River, North Branch Potomac River, Pine Creek, South Branch Potomac River, USGS Science Data Catalog (SDC), West Branch Mahantango Creek, Wildlife Disease, Wildlife Disease, biota, endocrine disruptor, fish health, immunity, mercury, reproductive health, Fewer tags Hakalau Forest NWR plant, soil, litter, and decomposition data 2015-2019 This data release includes data and metadata on litterfall rates, foliar nitrogen and carbon, grass biomass, soil nitrogen and carbon, and native outplant survival rates for an experiment that added large quantities of woody litter to a restoration forest in an attempt to lower soil nitrogen and exotic grass biomass. All sites were within Hakalau Forest National Wildlife Refuge on Hawaii Island. Broadly, this study looked at the ability to alter soil nitrogen cycling, exotic grass biomass and native outplant survival with large quantities of Metrosideros polymorpha litter in a forest dominated by Acacia koa. Tags: Ecology, Environmental Health, Forestry, Hakalau Forest National Wildlife Refuge, Hawaii, All tags... Land Use Change, Soil Sciences, USGS Science Data Catalog (SDC), avian diet, botany, ecology, exotic grass, forest resources, forest restoration, land use change, plant competition, plant ecology, seed limitation, seedling recruitment, tropical forest dynamics, Fewer tags 1 2 3 4 5 ... 9 »