okapi bm25 site terms com pp site www term olimia com site:www.usgs.gov

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csv): 1) mussel sampling site layout information, 2) mussel counts for mussels greater than 20 millimeters in a quadrat, 3) mussel size measurements for mussels greater

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https://www.usgs.gov/staff-profiles/daniel-esler

csv): 1) mussel sampling site layout information, 2) mussel counts for mussels greater than 20 millimeters in a quadrat, 3) mussel size measurements for mussels greater

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https://www.usgs.gov/centers/sbsc/science/river-geomorphology-and-geomorphic-change?qt-science_center_objects=0

gov website belongs to an official government organization in the United States

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https://www.usgs.gov/centers/southwest-biological-science-center/science/grand-canyon-monitoring-and-research-projects

gov website belongs to an official government organization in the United States

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https://www.usgs.gov/special-topic/water-science-school/science/glaciers-and-icecaps

com June 7, 2019 The water stored in ice and glaciers moves slowly through are part of the water cycle, even though the water in them moves very slowly

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https://www.usgs.gov/streamstats/streamstats-fundamentals

StreamStats incorporates (1) a map-based user interface for the site selection; (2) a relational data base that contains information for data-collection stations and regression equations used to estimate flow statistics for ungaged sites; (3) a GIS program that allows locating sites of interest in the user interface

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/arizona-water-science-center/science/national-water-quality-program-monitoring-networks

Most are long-term USGS monitoring sites that have more than 20 years of data

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https://www.usgs.gov/programs/environmental-health-program/science/flood-redistributes-mercury-grand-canyon-aquatic-food

Scientists collected 18–20 benthic invertebrate samples per season and site and sampled the predominant habitats using multiple approaches

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https://www.usgs.gov/centers/southwest-biological-science-center/science/timing-really-everything-evaluating-resource

gov website belongs to an official government organization in the United States

No Adverse Reproductive Effects Observed in Tree Swallows Exposed to

https://www.usgs.gov/programs/environmental-health-program/science/no-adverse-reproductive-effects-observed-tree

The study site, Clarks Marsh, is on the south side of the former Wurtsmith Air Force Base in Oscoda Township, Michigan, and where PFAS occurrence has been previously documented in groundwater and nearby surface waters

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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/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/staff-profiles/mark-marvin-dipasquale

During much of his USGS tenure, his research focus has been on mercury cycling in various ecosystems, including: the San Francisco Bay watershed and associated mining areas throughout CA; FL Everglades; Carson River, NV (mercury Superfund site); coastal Louisiana; Patagonia region of Argentina; Puget Sound, WA; USGS

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https://www.usgs.gov/special-topic/water-science-school/science/nitrogen-and-water

It may be difficult or expensive to retain on site all nitrogen brought on to farms whether for feed, fertilizer, or from animal manure

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https://www.usgs.gov/programs/VHP/volcano-updates

gov/hans2/view/notice/DOI-USGS-AVO-2026-09-04T18:48:35+00:00 Shishaldin Alert Level = ADVISORY Aviation Color Code = YELLOW

Environmental data associated with sites infected with white-nose

https://www.usgs.gov/publications/environmental-data-associated-sites-infected-white-nose-syndrome-wns-october-2011

However, to predict where and when the disease will spread to new sites is difficult because detailed site information and associated environmental data are notably sparse

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https://www.usgs.gov/publications/regional-spectral-analysis-three-moderate-earthquakes-northeastern-north-america

We check the recorded spectra closely for anomalies that might result from site resonance or source effects

Impact of mine and natural sources of mercury on water, sediment, and

https://www.usgs.gov/publications/impact-mine-and-natural-sources-mercury-water-sediment-and-biota-harley-gulch-adjacent

chemistry at sample site HG1; and (3) cold connate groundwater that dominates water chemistry during the dry season as it upwells and reaches the surface

Estimation of Dissolved-Solids Concentrations Using Continuous Water

https://www.usgs.gov/centers/arizona-water-science-center/science/estimation-dissolved-solids-concentrations-using

The study developed site-specific relations of specific conductance, water temperature, and dissolved-solids concentrations at four monitoring sites in the Yuma area between Imperial Dam and the United States–Mexico southerly international boundary to predict dissolved-solids concentrations using surrogate

Concentrations of metals and trace elements in aquatic biota associated

https://www.usgs.gov/publications/concentrations-metals-and-trace-elements-aquatic-biota-associated-abandoned-mine-lands

The site with the highest overall contamination within the park, based on both fish and invertebrate data, was WLCC, a site on Willow Creek impacted by acid mine drainage and listed as impaired under Section 303(d) of the Clean Water Act

Per- and polyfluoroalkyl substances in the Duluth, MN area: Exposure to

https://www.usgs.gov/publications/and-polyfluoroalkyl-substances-duluth-mn-area-exposure-and-biomarker-responses-tree

Total egg PFAS concentrations at the ANG site and north of that site were 30–40 times higher than at the reference lake, while nestling PFAS concentrations were 10–15 times higher

An investigation of aquatic invasive species in pristine sites in the

https://www.usgs.gov/centers/norock/science/investigation-aquatic-invasive-species-pristine-sites-greater-yellowstone

For Grand Teton National Park, we provide an example of how invasion risk posed by human activity can be used to dictate site selection in the GRTS framework

Assessing the vulnerability of cultural resources to rainfall-driven

https://www.usgs.gov/programs/climate-adaptation-science-centers/science/assessing-vulnerability-cultural-resources

This project will lead to actionable science by direct collaboration with National Park Service (NPS), WUPA, and Tribal partners to develop adaptation/mitigation strategies informed by ancestral practices and model the effects of these strategies on site-specific erosion to identify best practices to preserve cultural

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Areas of Concern: Effects of Contaminants of Emerging Concern on Avian

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No Adverse Reproductive Effects Observed in Tree Swallows Exposed to

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Environmental data associated with sites infected with white-nose

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Impact of mine and natural sources of mercury on water, sediment, and

Estimation of Dissolved-Solids Concentrations Using Continuous Water

Concentrations of metals and trace elements in aquatic biota associated

Per- and polyfluoroalkyl substances in the Duluth, MN area: Exposure to

An investigation of aquatic invasive species in pristine sites in the

Assessing the vulnerability of cultural resources to rainfall-driven

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Water-Quality Data for Selected National Park Units within the Southern

Multi-Resource Integrated Assessments (MRIA) and the Critical-Mineral

2008 Weather and Aeolian Sand-Transport Data from the Colorado River

Uranium in Springs Sampled Near the Grand Canyon Likely from Natural

Per- and polyfluoroalkyl substances along the St Louis River and in the

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