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https://www.usgs.gov/staff-profiles/charles-n-alpers
This work has included research on acid mine drainage at the Iron Mountain Superfund site, including documentation of negative-pH water and associated sulfate minerals
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
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
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
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
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
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
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
https://www.usgs.gov/programs/species-management-research-program/science/usgs-energy-and-wildlife-research-update-sept
Scientists have also developed decision-support tools, vulnerability indices, and risk assessment frameworks to inform site selection, operational strategies, and mitigation approaches
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
https://www.usgs.gov/programs/national-cooperative-geologic-mapping-program/science/national-geologic-map-database-0
gov website belongs to an official government organization in the United States
https://www.usgs.gov/programs/environmental-health-program/science/minerals-resources-life-cycle-integrated-science-team
gov website belongs to an official government organization in the United States
https://www.usgs.gov/staff-profiles/andrea-tokranov
gov website belongs to an official government organization in the United States
https://www.usgs.gov/programs/environmental-health-program/science/long-term-monitoring-reveals-how-water-and-biota
gov website belongs to an official government organization in the United States
https://www.usgs.gov/programs/climate-adaptation-science-centers/science/deep-dive-casc-science-action
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https://www.usgs.gov/staff-profiles/bronwen-wang
gov website belongs to an official government organization in the United States
https://www.usgs.gov/water-science-school/science/what-hydrology
gov website belongs to an official government organization in the United States
https://www.usgs.gov/staff-profiles/julie-e-dietze
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https://www.usgs.gov/staff-profiles/natalie-karouna-renier
gov website belongs to an official government organization in the United States
https://www.usgs.gov/centers/oregon-water-science-center/science/harmful-algal-blooms-and-drinking-water-oregon
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https://www.usgs.gov/media/images/photographs-archaeological-sites-physical-degradation-erosion-along-colorado-river
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https://www.usgs.gov/publications/resurvey-marble-canyon-and-bridge-canyon-dam-sites-grand-canyon-national-park-changes
gov website belongs to an official government organization in the United States
https://www.usgs.gov/publications/surficial-geology-geomorphology-and-erosion-archeologic-sites-along-colorado-river
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https://www.usgs.gov/centers/southwest-biological-science-center/news/injuries-and-abnormalities-southwestern-pond
gov website belongs to an official government organization in the United States
https://www.usgs.gov/data/data-1998-2002-resurveys-marble-canyon-and-bridge-canyon-dam-sites-grand-canyon-national-park
gov website belongs to an official government organization in the United States
https://www.usgs.gov/centers/southwest-biological-science-center/science/informing-renewable-energy-development-siting
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https://www.usgs.gov/publications/timing-and-magnitude-broad-winged-hawk-migration-montclair-hawk-lookout-new-jersey-and
gov website belongs to an official government organization in the United States
https://www.usgs.gov/centers/lower-mississippi-gulf-water-science-center/science/characterization-macroinvertebrate-and
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https://www.usgs.gov/programs/environmental-health-program/science/systematic-approach-understanding-tree-swallow-health
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https://www.usgs.gov/centers/washington-water-science-center/science/coal-transport
gov website belongs to an official government organization in the United States