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Federal
Bioaccumulation in fish (Cyprinodon variegatus) during rejuvenations of a thin active cap over field-aged PCB contaminated sediment: The effect of clean versus contaminated ongoing influx recent views
U.S. Environmental Protection Agency —
Please contact first author (e.g., P Gidley). This dataset is not publicly accessible because: Non-U.S. EPA data. It can be accessed through the following means:... -
Federal
Selenium and mercury in fish tissues from the Kootenai River, Montana and Idaho, September 2018 recent views
Department of the Interior —
Working in cooperation with EPA, the USGS coordinated the collection of fish tissue for processing and analyses by the EPA Region 10 Manchester Environmental... -
Federal
Survival, growth, behavior and mercury concentrations of mayflies exposed to elevated dietary methylmercury and aqueous selenium recent views
Department of the Interior —
Survival and size of mayflies at each life stage, as well as MeHg concentrations in diatoms and mayflies exposed to low and high MeHg concentrations and a range of... -
Federal
Adult emergence counts, Experiments 1 through 4 recent views
Department of the Interior —
In a series of 4 experiments conducted over 4 years, natural lotic macroinvertebrate communities were colonized by placing baskets of large gravel in a riffle in the... -
Federal
Enhanced Susceptibility of Methylmercury Bioaccumulation into Seston of the Laurentian Great Lakes recent views
U.S. Environmental Protection Agency —
Data were created in order to examine mercury concentrations, cycling, and biotic transfer in the Great Lakes and is in response to mercury concentrations in fish... -
Federal
Mercury Concentrations in Seston, Mussels, Water, Sediments, and Preyfish from Lake Huron, 2022 recent views
Department of the Interior —
As part of the larger Great Lakes Cooperative Science and Monitoring Initiative (CSMI) , the U.S. Geological Survey Mercury Research Laboratory (MRL) completed a... -
Federal
Data acquired in laboratory experiments conducted with the crustacean Daphnia magna to characterize Ag bioaccumulation kinetics after exposures to AgNO3 or Ag nanoparticles, 2019-2021 recent views
Department of the Interior —
Silver nanoparticles (AgNP) are one type of contaminant that can enter treatment wetlands (Wiesner 2006) and impact the overall treatment efficacy. Grazing by filter... -
Federal
Mercury Concentrations, Diet, and Gut Microbiota Diversity of Southern Beaufort Sea Polar Bears, 2008-2019 recent views
Department of the Interior —
This dataset is two tables with data collected and derived from polar bears sampled in Alaska’s southern Beaufort Sea during 2008-2019. Collected data includes... -
Federal
Dataset for temporal influences on selenium partitioning, trophic transfer, and exposure in a major U.S. river recent views
Department of the Interior —
The trace element selenium is an essential element with a narrow window between concentrations needed to support life and those that cause toxicity to egg laying... -
Federal
Assessment of Mercury Cycling in the St Louis River, MN using Mercury and Food Web (Carbon and Nitrogen) Stable Isotopes recent views
Department of the Interior —
The St Louis River (SLR) is the second largest tributary to Lake Superior and a designated area of concern (AOC) due to past industrial contamination of organic... -
Federal
Sediment Biogeochemistry and Subsequent Mercury Biomagnification in Wetland Food Webs of the San Francisco Bay, CA (ver. 2.0, December 2023) recent views
Department of the Interior —
Methylmercury (MeHg) is a globally pervasive contaminant that biomagnifies in food webs and can reach toxic concentrations in consumers at higher trophic levels,... -
Federal
Selenium concentrations in tissues of the cyprinid Sacramento Splittail of the San Francisco Estuary (2010-11 and 2017) recent views
Department of the Interior —
Estuaries provide critical habitat for a vast array of fish and wildlife but are also a nexus for core economic activities that mobilize and concentrate contaminants... -
Federal
Estimating n-octanol-water partition coefficients for highly hydrophobic chemicals using measured n-butanol-water partition coefficients recent views
U.S. Environmental Protection Agency —
A table of measured n-butanol/water partition coefficients and n-octanol/water partition coefficients. This dataset is associated with the following publication:... -
Federal
Trace-element concentrations in water, streambed sediment, and aquatic invertebrates at select locations in the Klamath River and major tributaries, 2018-2019. recent views
Department of the Interior —
The U.S. Geological Survey is monitoring concentrations of metals and other trace elements in water, streambed sediment, and aquatic invertebrates at 6 locations in... -
Federal
Data acquired in laboratory experiments conducted with the stonefly Zapada sp. and the ephemerellid mayflies Drunella sp. and Ephemerella tibialis to characterize uptake and surface adsorption after short aqueous exposures to uranium, 2017-2019 recent views
Department of the Interior —
Little is known about the underlying mechanisms governing uranium (U) bioaccumulation in aquatic insects, especially the influence of surface adsorption on the... -
Federal
Nichols et al._Biotransformation of PAH mixures by trout liver S9 fractions recent views
U.S. Environmental Protection Agency —
This Excel spreadsheet provides data that appear in Tables 1- 2 and Figures 1-4 of the main document, as well as data that appear in Figures S1-S3 of the... -
Federal
Mercury concentrations and stable isotope ratios for California black rails and their invertebrate prey from wetlands of the San Francisco Bay, CA recent views
Department of the Interior —
Methylmercury concentrations and stable isotope ratios were measured from back feathers of California black rails (Laterallus jamaicensis coturniculus) and six taxa... -
Federal
Data for developing metamodels to assess the fate, transport, and bioaccumulation of organic chemicals in rivers. Chemicals have log Kow ranging from 3 to 14, and rivers have mean annual discharges ranging from 1.09 to 3240 m3/s. recent views
U.S. Environmental Protection Agency —
This dataset was developed to demonstrate how metamodels of high resolution, process-based models that simulate the fate, transport, and bioaccumulation of organic... -
Federal
Chemical and Physical Controls on Mercury Source Signatures in Stream Fish from the Northeastern United States recent views
Department of the Interior —
The Northeast Stream Quality Assessment (NESQA) performed mercury (Hg) isotope analysis of prey fish, game fish, and sediments from 29 sites across an urban to... -
Federal
Lumbriculus variegatus loading study recent views
U.S. Environmental Protection Agency —
Results from sediment bioaccumulation tests with Lumbriculus variegatus with evaluating the effects of organism loading density. This dataset is associated with the...