okapi bm25 site hotchips pp site hotchips pp site types no site:www.usgs.gov

30 result(s) for “okapi bm25 site hotchips pp site hotchips pp site types no site:www.usgs.gov” of 81 matched · 497 ms

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POEA has been shown to have toxic effects to some aquatic organisms making the potential transport of POEA from the application site into the environment an important concern

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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/programs/environmental-health-program/science/organic-chemistry-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/southwest-biological-science-center/science/supporting-energy-and-mineral-development

Surface reclamation generally entails recontouring a site to blend into the natural landscape, respreading saved topsoil and other amendments, establishing native vegetation, and minimizing erosion

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https://www.usgs.gov/mission-areas/water-resources/science/nutrients-and-eutrophication

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

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https://www.usgs.gov/centers/oregon-water-science-center/science/harmful-algal-blooms-and-drinking-water-oregon

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

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https://www.usgs.gov/special-topics/great-lakes-restoration-initiative/science/invasive-carp-integrated-control-and

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

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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/staff-profiles/joel-b-sankey?qt-staff_profile_science_products=0

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

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https://www.usgs.gov/staff-profiles/daniel-l-tush

POEA has been shown to have toxic effects to some aquatic organisms making the potential transport of POEA from the application site into the environment an important concern

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

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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

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https://www.usgs.gov/centers/ohio-kentucky-indiana-water-science-center/science/harmful-algae-blooms-habs

Predicting when and where a bloom may occur is important to protect the public that uses and consumes a water resource; however, predictions are complicated and likely site specific because of the many factors affecting

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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

Dragonfly Larvae are Effective Bioindicators of Mercury Exposure in Fish

https://www.usgs.gov/programs/environmental-health-program/science/dragonfly-larvae-are-effective-bioindicators-mercury

Dragonfly larvae were selected as bioindicators because they are widely distributed and abundant, are key components of aquatic food web energetic pathways, are relatively long-lived, and show high site fidelity (National Park Service

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

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

no mining has occurred (sample site HG3), (3) sample sites HG4-HG7, where a seasonal influx of saline groundwater alters stream chemistry, and (4) sample sites HG7-HG10, downstream in Harley Gulch towards the confluence with Cache Creek

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

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

https://www.usgs.gov/data/and-polyfluoroalkyl-substances-along-st-louis-river-and-duluth-mn-area-2019-2021

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

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https://www.usgs.gov/centers/arizona-water-science-center/science/national-water-quality-program-monitoring-networks

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

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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/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

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

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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An investigation of aquatic invasive species in pristine sites in the

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Dragonfly Larvae are Effective Bioindicators of Mercury Exposure in Fish

No Adverse Reproductive Effects Observed in Tree Swallows Exposed to

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

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

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

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Environmental data associated with sites infected with white-nose

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Estimation of Dissolved-Solids Concentrations Using Continuous Water

Concentrations of metals and trace elements in aquatic biota associated

Assessing the vulnerability of cultural resources to rainfall-driven

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

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

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