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Scientist standing in a laboratory next to an instrument
Scientist standing near a high resolution mass spectrometer
Scientist standing near a high resolution mass spectrometer
Scientist standing near a high resolution mass spectrometer

USGS scientist standing near the high-resolution mass spectrometer at the U.S. Geological Survey Eastern Ecological Science Center. The instrument will be used for analyses of PFAS in plasma and tissue samples. Any display of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

USGS scientist standing near the high-resolution mass spectrometer at the U.S. Geological Survey Eastern Ecological Science Center. The instrument will be used for analyses of PFAS in plasma and tissue samples. Any display of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

High resolution mass spectrometer in  laboratory
High resolution mass spectrometer used for chemical analyses
High resolution mass spectrometer used for chemical analyses
High resolution mass spectrometer used for chemical analyses

High resolution mass spectrometer at the USGS Eastern Ecological Science Center.   Any display of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

High resolution mass spectrometer at the USGS Eastern Ecological Science Center.   Any display of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Scientist collecting soil and worms
USGS scientists collecting soil and worms at a site on Cape Cod, Mass.
USGS scientists collecting soil and worms at a site on Cape Cod, Mass.
USGS scientists collecting soil and worms at a site on Cape Cod, Mass.

USGS scientists Gregory D'Agostino and Katherine Wares collecting soil and worms at a site on Cape Cod, Massachusetts, that was contaminated by PFAS from fire-fighting foam.  

Scientist placing invertebrate into sampling container
Invertebrates being collected at a site on Cape Cod, Massachusetts
Invertebrates being collected at a site on Cape Cod, Massachusetts
Invertebrates being collected at a site on Cape Cod, Massachusetts

Invertebrate being collected at a site on Cape Cod, Massachusetts, that was contaminated by PFAS from fire-fighting foam used at the site. 

Drinking Water
Water is a shared resource between people and wildlife
Water is a shared resource between people and wildlife
Scientist installing a swallow nesting box near a pond
Scientist installing a nest box near Ashumet Pond, Cape Cod, Mass.
Scientist installing a nest box near Ashumet Pond, Cape Cod, Mass.
Scientist installing a nest box near Ashumet Pond, Cape Cod, Mass.

Scientist istalling a swallow nest box near Ashumet Pond, Cape Cod Massachusetts as part of a study on the fate and effects of PFAS chemicals. 

USGS scientists operate drones over a prescribed burn in a field in Kansas.
USGS scientists operate drones with particulate and gas samplers over a prescribed burn in Kansas.
USGS scientists operate drones with particulate and gas samplers over a prescribed burn in Kansas.
USGS scientists operate drones with particulate and gas samplers over a prescribed burn in Kansas.

Joe Adams (USGS National Uncrewed Systems Office) pilots and Keith Grabner (USGS Columbia Environmental Research Center) acts as visual observer as a drone equipped with EPA particulate and gas samplers (right) hovers in the plume of a spring prescribed burn at the Konza Prairie Biological Station, Tallgrass Prairie National Preserve, Kansas.

Joe Adams (USGS National Uncrewed Systems Office) pilots and Keith Grabner (USGS Columbia Environmental Research Center) acts as visual observer as a drone equipped with EPA particulate and gas samplers (right) hovers in the plume of a spring prescribed burn at the Konza Prairie Biological Station, Tallgrass Prairie National Preserve, Kansas.

U.S. Geological Survey scientist holding a Colorado pikeminnow
Scientist holding a fish collected from the Upper Colorado River basin
Scientist holding a fish collected from the Upper Colorado River basin
Pictures spliced together showing collecting bottom sediments
Lake bottom sediment collection from Ashumet Pond, Cape Cod, Mass.
Lake bottom sediment collection from Ashumet Pond, Cape Cod, Mass.
Lake bottom sediment collection from Ashumet Pond, Cape Cod, Mass.

USGS scientists Jason Sorenson and Andrea Tokranov (out of the image) collecting lake-bottom sediments from Ashumet Pond on Cape Cod, Massachusetts for use in laboratory experiments on the fate of PFAS at groundwater/surface-water boundaries.  The sediments are collected by pushing a tube into the lake bottom and transferring the sediment and pore water in

USGS scientists Jason Sorenson and Andrea Tokranov (out of the image) collecting lake-bottom sediments from Ashumet Pond on Cape Cod, Massachusetts for use in laboratory experiments on the fate of PFAS at groundwater/surface-water boundaries.  The sediments are collected by pushing a tube into the lake bottom and transferring the sediment and pore water in

central eastern U.S. states with boundary outline
Chesapeake Bay Watershed boundary, USA
Chesapeake Bay Watershed boundary, USA
Chesapeake Bay Watershed boundary, USA

The Chesapeake Bay watershed, or draingage basin, encompasses six states - New York, Pennsylvania, West Virginia, Maryland, Delaware, Virginia, and the District of Columbia. A drainage basin is a giant system of creeks, streams, and rivers that all flow into a common outlet, which in this case is the Chesapeake Bay.

The Chesapeake Bay watershed, or draingage basin, encompasses six states - New York, Pennsylvania, West Virginia, Maryland, Delaware, Virginia, and the District of Columbia. A drainage basin is a giant system of creeks, streams, and rivers that all flow into a common outlet, which in this case is the Chesapeake Bay.

Releases of oil and gas wastewaters
Releases of oil and gas wastewaters can have complex effects on stream-water quality and downstream organisms
Releases of oil and gas wastewaters can have complex effects on stream-water quality and downstream organisms
Transition between melanistic (left side) and normal areas of skin (right side).
Melanistic and normal areas of fish skin
Melanistic and normal areas of fish skin
Melanistic and normal areas of fish skin

Microscopic appearance of normal and melanistic skin in fish from Chesapeake Bay watershed.

Water sample collections
Water Sample Collections, Franklin Lock and Dam
Water Sample Collections, Franklin Lock and Dam
Water Sample Collections, Franklin Lock and Dam

Photographic image of two USGS scientists on a boat collecting water samples for HABS research at the Franklin Lock and Dam, Caloosahatchee River, Florida.

Satellite data derived cyanobacteria biomass estimate
Aerial image and satellite derived image of Florida Lakes
Aerial image and satellite derived image of Florida Lakes
Aerial image and satellite derived image of Florida Lakes

This image is a cropped rendition of  two aerial images that demonstrate satellite-derived cyanobacteria concentrations in surface waters from an area in Florida.

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