Small stream running through an agricultural area in Iowa with crops surrounding it.
Images
Small stream running through an agricultural area in Iowa with crops surrounding it.
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 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.
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.
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.
Invertebrate being collected at a site on Cape Cod, Massachusetts, that was contaminated by PFAS from fire-fighting foam used at the site.
Invertebrate being collected at a site on Cape Cod, Massachusetts, that was contaminated by PFAS from fire-fighting foam used at the site.
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.
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 with particulate and gas samplers over a prescribed burn in Kansas.
linkJoe 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.
USGS scientists operate drones with particulate and gas samplers over a prescribed burn in Kansas.
linkJoe 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 scientists holding a Colorado pikeminnow during a sampling trip in the Upper Colorado River Basin.
U.S. Geological Survey scientists holding a Colorado pikeminnow during a sampling trip in the Upper Colorado River Basin.
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
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.
Microscopic appearance of normal and melanistic skin in fish from Chesapeake Bay watershed.
Microscopic appearance of normal and melanistic skin in fish from Chesapeake Bay watershed.
White barn in a rural setting in North Dakota.
White barn in a rural setting in North Dakota.
A well pump in rural North Dakota.
A well pump in rural North Dakota.
Visitors at Winnewissa Falls in Pipestone National Monument
Visitors at Winnewissa Falls in Pipestone National Monument
Benthic macroinvertebrate taxa collected from Straight Run, Tioga County, Pennsyvania, USA.
Benthic macroinvertebrate taxa collected from Straight Run, Tioga County, Pennsyvania, USA.
This image is a cropped rendition of two aerial images that demonstrate satellite-derived cyanobacteria concentrations in surface waters from an area in Florida.
This image is a cropped rendition of two aerial images that demonstrate satellite-derived cyanobacteria concentrations in surface waters from an area in Florida.
Graphical depiction of a seasonal wetland engineered to have a deeper pool and more open water on the downstream side of the wetland. This management strategy was tested during a 3-year period to determine if it resulted in a reduction of methylmercury in caged fish and surface water.
Graphical depiction of a seasonal wetland engineered to have a deeper pool and more open water on the downstream side of the wetland. This management strategy was tested during a 3-year period to determine if it resulted in a reduction of methylmercury in caged fish and surface water.
A three year study was conducted in seasonal wetlands to determine if a deep and shallow water pool resulted in a reduction of methylmercury in caged fish and surface water.
A three year study was conducted in seasonal wetlands to determine if a deep and shallow water pool resulted in a reduction of methylmercury in caged fish and surface water.
Map of the study region showing the location of lakes in (A) Florida and (B) Ohio. In total, 135 lakes in Florida and 21 lakes in Ohio, were resolvable with the full resolution MERIS data and are used in this study. Land and lakes are shown in gray and blue colors respectively.
Map of the study region showing the location of lakes in (A) Florida and (B) Ohio. In total, 135 lakes in Florida and 21 lakes in Ohio, were resolvable with the full resolution MERIS data and are used in this study. Land and lakes are shown in gray and blue colors respectively.
(A). Algal bloom magnitude in Florida lakes in 2011 before normalization and (B) after normalization by lake surface area. Area-normalized magnitude (km−2) of selected lakes provided as part of bar labels in parenthesis.
(A). Algal bloom magnitude in Florida lakes in 2011 before normalization and (B) after normalization by lake surface area. Area-normalized magnitude (km−2) of selected lakes provided as part of bar labels in parenthesis.
Sampling rain induced runoff from wastewater effluent-irrigated agricultural runoff site on August 30, 2019, at the Oklahoma State University South Central Research Station in Chickasha, Oklahoma. Photograph by Jason Masoner, U.S. Geological Survey.
linkThis photo show runoff from an experimental plot through a weir. Scientists carried out the study at the Oklahoma State University South Central Research Station in Chickasha, Oklahoma. Its a good example of rain induced runoff.
Sampling rain induced runoff from wastewater effluent-irrigated agricultural runoff site on August 30, 2019, at the Oklahoma State University South Central Research Station in Chickasha, Oklahoma. Photograph by Jason Masoner, U.S. Geological Survey.
linkThis photo show runoff from an experimental plot through a weir. Scientists carried out the study at the Oklahoma State University South Central Research Station in Chickasha, Oklahoma. Its a good example of rain induced runoff.