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The source of the PFASs at that location were a former air force base which conducted extensive fire-fighting training exercises at that site
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Areas of Concern: Effects of Contaminants of Emerging Concern on Avian

https://www.usgs.gov/special-topics/great-lakes-restoration-initiative/science/areas-concern-effects-contaminants
The source of the PFASs at that location were a former air force base which conducted extensive fire-fighting training exercises at that site

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https://www.usgs.gov/centers/ny-water/science/water-use-and-availability-science
A Cattaraugus Creek tributary valley (Buttermilk Creek) to the south is the site of

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https://www.usgs.gov/water-science-school/science/mining-and-water-quality
Hot acid solutions, more concentrated than battery acid, are dripping off colorful mineral stalactites in the abandoned copper and zinc mine at Iron Mountain, a northern California "Superfund" site that is undergoing remediation by the US Environmental Protection Agency (EPA)

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https://www.usgs.gov/staff-profiles/charles-n-alpers
The abandoned Sulphur Bank Mercury Mine on the shores of Clear Lake in Northern California has been designated as a "Superfund Site" by the U

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https://www.usgs.gov/programs/environmental-health-program/science/study-highlights-complexity-chemical-mixtures-united
This study was an opportunity to assess the factors related to site-to-site differences in stream-contaminant complexity and to put the chemical data into context with potential effects on aquatic animal health

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https://www.usgs.gov/staff-profiles/sarah-e-janssen
and cyanotoxin data collected from Ellsworth Rock Gardens in Kabetogama Lake at Voyageurs National Park (USGS site ID: USGS-482947092584401)

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https://www.usgs.gov/programs/environmental-health-program/science/organic-geochemistry-research-core-technology-team
gov website belongs to an official government organization in the United States

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https://www.usgs.gov/centers/colorado-water-science-center/science/water-energy-and-biogeochemical-budgets-webb-loch
Analyses of temporal and spatial variations in the depth and water content of seasonal snowpacks was another area of extensive research at the Loch Vale WEBB site

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https://www.usgs.gov/programs/toxic-substances-hydrology/science/geospatial-analyses-and-applications-core-technology
These relationships can also be used to find locations similar to these place-based study sites, which may be useful for future site-selections or result extrapolation

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https://www.usgs.gov/special-topics/water-science-school/science/water-science-glossary
Here's a list of water-related terms, compiled from several different resources, that might help you understand our site better

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https://www.usgs.gov/publications/contaminants-tropical-island-streams-and-their-biota
The Bigmouth Sleeper Gobiomorous dormitor, an important piscivorus sport fish, accumulated low levels of organic contaminants in edible muscle tissue (due to its low lipid content) and may be most suitable for human consumption island-wide; only mercury at one site (an urban location) exceeded EPA's consumption limit

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https://www.usgs.gov/staff-profiles/nicholas-paretti
I first joined the Arizona Water Science Center as a University of Arizona undergraduate student in 2001 working on a stream ecology assessment programs for the EPA and USGS

From Tread to Watershed: How Tire Wear Particle Chemicals 6PPD and 6PPD

https://www.usgs.gov/labs/organic-geochemistry-research-laboratory/science/tread-watershed-how-tire-wear-particle
in thin film (DGT) passive samplers for 6PPD-quinone Bioavailability (Occurrence Sampling): collaborative studies across the USGS to determine 6PPD and 6PPD-quinone levels in ecologically relevant habitats Method Validation: Participation in an inter-laboratory validation study and seeking accreditation with

Elevated Levels of Mercury Found in Fish in Western U.S. National Parks

https://www.usgs.gov/news/national-news-release/elevated-levels-mercury-found-fish-western-us-national-parks
However, the range of concentrations measured suggest that complex processes are involved in driving mercury accumulation in these environments and further research is needed to better understand these processes, and assess risk,” said USGS ecologist Collin Eagles-Smith, the lead author of the publication

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https://www.usgs.gov/news/new-eros-satellite-products-research-begin-detail-urban-hot-spots
But doing so, according to the UHI Program Director Victoria Ludwig of the EPA, “is all predicated on cities knowing that they have an urban heat island, knowing how bad it is, and knowing where it’s worst in the city so they can target interventions

Tracking Toxins at the Coastline: A National Look at Harmful Algal

https://www.usgs.gov/programs/environmental-health-program/science/tracking-toxins-coastline-a-national-look-harmful
Geological Survey (USGS), working with the Environmental Protection Agency (EPA), carried out a nationwide study to learn more about harmful algal toxins in U

Per- and Polyfluoroalkyl Substances (PFASs) detected in Source Waters

https://www.usgs.gov/programs/environmental-health-program/science/and-polyfluoroalkyl-substances-pfass-detected-source
Humans can be exposed to mixtures of contaminants in the water we drink

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https://www.usgs.gov/publications/groundwater-conditions-utah-spring-2010
Environmental Protection Agency (EPA) drinking-water standards can be accessed at http://www

Food web controls on mercury fluxes and fate in the Colorado River

https://www.usgs.gov/publications/food-web-controls-mercury-fluxes-and-fate-colorado-river-grand-canyon
Food web controls on mercury fluxes and fate in the Colorado River, Grand Canyon | U

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https://www.usgs.gov/programs/environmental-health-program/science/leveraging-uv-light-effective-algal-toxin-removal
When these algae flourish in drinking water sources such as lakes, rivers, and reservoirs, they can lead to cyanotoxin concentrations that exceed safety limits set by health organizations

Food Web Changes Dampen Expected Reductions in Lake Trout Mercury Levels

https://www.usgs.gov/programs/environmental-health-program/science/food-web-changes-dampen-expected-reductions-lake
Geological Survey (USGS) scientists indicate that declining atmospheric concentrations of mercury (Hg) can be explained by the phaseout of mercury in many commercial products and by reduced emissions from utilities over the past two decades

Nutrient Management for Harmful Algal Blooms: The Importance of Nitrogen

https://www.usgs.gov/programs/environmental-health-program/science/nutrient-management-harmful-algal-blooms-importance
The levels of both macro- and micronutrients can influence which types of cyanobacteria thrive in the environment, ultimately shaping the composition and functionality of the entire community

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https://www.usgs.gov/centers/ny-water/science/water-quality
Geological Survey (USGS) in monitoring the effects of these alternative treatments on the water resources

A Decade of Data Reveals Imidacloprid (a common insecticide) is

https://www.usgs.gov/programs/environmental-health-program/science/a-decade-data-reveals-imidacloprid-a-common
Active Imidacloprid, a commonly used insecticide in both agricultural and urban settings, is reaching rivers and streams across the country, where it can potentially harm the aquatic insects and other organisms that support healthy freshwater ecosystems

Global dataset of nutritional value, economic value, and climate

https://www.usgs.gov/data/global-dataset-nutritional-value-economic-value-and-climate-vulnerability-species-specific
gov website belongs to an official government organization in the United States

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https://www.usgs.gov/news/state-news-release/visualize-your-water-citizen-science-challenge-high-school-students
In this educational competition, students will use digital mapping technology from Esri (a leading geographic technology company) with data from the USGS, EPA, and other sources to analyze local water quality

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https://www.usgs.gov/programs/environmental-health-program/science/decoding-harmful-algal-blooms-unraveling-mystery
Prolonged exposure can result in enduring consequences for populations, potentially causing declines in species

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https://www.usgs.gov/water-science-school/science/alkalinity-and-water
Credit: Steve Gerner, USGS Alkalinity is not a chemical in water, but, rather, it is a property of water that is dependent on the presence of certain chemicals in the water, such as bicarbonates, carbonates, and hydroxides

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https://www.usgs.gov/staff-profiles/keith-a-loftin
Loftin has received several awards including the Rudolf Hering Medal (2003),and EPA Bronze Medal (2011) for his work on cyanotoxins in the 2007 National Lakes Assessment, EPA’s Office of Water’s Achievement in Science and Technology Award (2015) for developing pioneering methods and metrics related to algal toxin

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https://www.usgs.gov/staff-profiles/jennifer-lavista
Data from the EPA’s Integrated Climate and Land Use Scenarios was incorporated into a web service compatible with the Geo Data Portal and is now hosted in the