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Total mercury, bulk density, percent organic matter, and percent organic carbon measured in permafrost cores from the interior and northern slope of Alaska and previously published studies Total mercury, bulk density, percent organic matter, and percent organic carbon measured in permafrost cores from the interior and northern slope of Alaska and previously published studies
This data release contains two datasets (see child items below). The first dataset, "MasterDB-csv-published-final.csv", includes 11,000 published measurements of sediment total mercury (STHg, nanograms per gram of soil, dry), bulk density (BD, grams per cm3 of soil, dry), percent of soil organic matter (%OM, loss on ignition, LOI), percent of soil organic carbon (%SOC, calculated using...
Total mercury, methylmercury, and isotopic composition in various life stages of boreal chorus frogs (Pseudacris maculata) at two subalpine ponds in the Rocky Mountains, CO, USA, 2015 Total mercury, methylmercury, and isotopic composition in various life stages of boreal chorus frogs (Pseudacris maculata) at two subalpine ponds in the Rocky Mountains, CO, USA, 2015
Mercury is an atmospherically transported contaminant found even in relatively pristine habitats. Once accumulated at the base of the food web, mercury can move between animals that are linked trophically. Pond-breeding amphibians may be particularly important vectors of mercury flux from remote freshwater to terrestrial systems because they feed on algae and detritus as tadpoles and...
Total monthly water withdrawals for public supply by 12-digit hydrologic unit in the conterminous United States for 2015 Total monthly water withdrawals for public supply by 12-digit hydrologic unit in the conterminous United States for 2015
This dataset presents the total estimated monthly public-supply water withdrawal by 12-digit hydrologic unit code (HUC12) in the conterminous United States for 2015. Public-supply water use was estimated by spatially and temporally downscaling available data from each state. The total represents combined groundwater and surface water withdrawals for 83,178 watersheds. Public supply...
Total neutron scattering of methane in Niobrara Formation samples at the wet-gas maturity level Total neutron scattering of methane in Niobrara Formation samples at the wet-gas maturity level
Petroleum within unconventional source-rock reservoirs is hosted in organic matter and mineral pore space as well as in voids and microfractures. Recent work has shown that for source-rock reservoirs in the dry gas window, significant portions of methane (CH4), the main component of petroleum at elevated maturities, can be stored within fine organic matter porosity. However, within...
Total PCB concentrations in sediment, water, macroinvertebrates and spiders and the lower Ottawa River (Toledo, OH) between 2009-2015 Total PCB concentrations in sediment, water, macroinvertebrates and spiders and the lower Ottawa River (Toledo, OH) between 2009-2015
Polychlorinated biphenyl (PCB) concentrations were measured in the lower Ottawa River in 2009 before dredging and after dredging in 2011, 2012, 2013, and 2015. Media collected for analysis included sediment, water, macroinvertebrates, and tetragnathid spiders at 18 stations. At each station 16 surface sediment core samples (top 15 cm) were collected and composited together with a...
Total phosphorus loads estimated from tributaries and direct drainages to the Great Lakes during 2012-2018 using the model load ratio approach and the unit area load approach Total phosphorus loads estimated from tributaries and direct drainages to the Great Lakes during 2012-2018 using the model load ratio approach and the unit area load approach
In this data release, we provide the data used to compute total annual phosphorus loads from tributaries and direct drainages to the Great Lakes during 2012-18 using the model load ratio approach and the unit area load approach and the resulting annual loads for 2012–18. This data release consists of: (1) measured loads at 24 sites, computed using the surrogate regression approach...
Toxicity data for the evaluation of Ziram to Grass Carp Ctenopharyngodon idella in a laboratory setting Toxicity data for the evaluation of Ziram to Grass Carp Ctenopharyngodon idella in a laboratory setting
Data consists of dose, dose method, solvent, weight, length and survival of test species from bioassays following an Up-and-Down method conducted with Ziram.
Toxicity Testing Review, Derived from published literature and reports Toxicity Testing Review, Derived from published literature and reports
The dataset is derived from a search of published books, papers, and reports on toxicity studies with Dreissena spp. mussels. Specific information was extracted from each paper on the study design, collection, handling, test methods, and reporting parameters.
Toxicological responses to sublethal anticoagulant rodenticide exposure in free-flying red-tailed hawks Toxicological responses to sublethal anticoagulant rodenticide exposure in free-flying red-tailed hawks
An important component of assessing the hazards of anticoagulant rodenticides to non-target wildlife are observations in exposed free-ranging individuals. The objective of this study was to determine if environmentally realistic, sublethal first-generation anticoagulant rodenticide exposures via prey, can result in direct or indirect adverse effects to free-flying raptors. We offered...
Trace element chemistry of sulfides and quartz, in situ sulfur isotope values of sulfides, cathodoluminescence of quartz, fluid inclusion microthermometry and raman, and radiogenic isotope and whole rock geochemistry from the Stibnite-Yellow Pine district Trace element chemistry of sulfides and quartz, in situ sulfur isotope values of sulfides, cathodoluminescence of quartz, fluid inclusion microthermometry and raman, and radiogenic isotope and whole rock geochemistry from the Stibnite-Yellow Pine district
This dataset is a collection of geochemical data on samples from the Stibnite-Yellow Pine district of Idaho. The datasets include: whole rock geochemistry; lead, strontium and neodymium isotope chemistry of sulfides and whole rock samples by isotope dilution-thermal-mass spectrometry (ID-TIMS); in situ sulfur isotope chemistry of sulfides by laser ablation-multi collector-inductively...
Trace element composition and molecular-scale speciation characterization of sphalerite from Central and East Tennessee mining districts, Red Dog mining district (AK), and Metaline mining district (WA) Trace element composition and molecular-scale speciation characterization of sphalerite from Central and East Tennessee mining districts, Red Dog mining district (AK), and Metaline mining district (WA)
Germanium (Ge) is an element deemed critical globally, and used in electronics, communication, and defense applications. The supply of Ge is limited and as demand for it increases, its criticality increases. Germanium is exclusively recovered as a byproduct of either coal mining or zinc (Zn) mining, and the main mineral hosting Ge in Zn deposits is sphalerite (ZnS). However, the...
Trace element data in whole blood collected in 2001 from Steller's eiders at Izembek Lagoon and Steller's eiders, harlequin ducks, black scoters, and a long-tailed duck at Dutch Harbor, Alaska Trace element data in whole blood collected in 2001 from Steller's eiders at Izembek Lagoon and Steller's eiders, harlequin ducks, black scoters, and a long-tailed duck at Dutch Harbor, Alaska
Trace element data in whole blood collected in 2001 from Steller's eiders (Polysticta stelleri; STEI) at Izembek Lagoon and Steller's eiders, harlequin ducks (Histrionicus histrionicus; HADU), black scoters (Melanitta americana; BLSC), and a long-tailed duck (Clangula hyemalis; LTDU) at Dutch Harbor, Alaska. Data include species, location, age, sex, percent moisture of blood sample, and...