Images

Sample boxes prepped in Utah for sampling to start take over offices as they wait to be delivered to facilities. 

Small stream running through an agricultural area in Iowa with crops surrounding it.

Early Life Stage (ELS) tests are used as an alternative to traditional whole-animal testing methods for evaluating toxicity of chemicals. ELS for birds involve injection into the air cell of fertile eggs early in development and artificial incubation for several days at which point tissues are sampled for analysis.

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.

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. 

 A USGS scientist wearing black gloves is collecting a sample of tap water from the kitchen sink using small plastic vials to test for PFAS.

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. 

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 scientists holding a Colorado pikeminnow during a sampling trip in the Upper Colorado River Basin.

United States map showing modeling results (red) of the probability of arsenic concentrations greater than 5 micrograms per liter. Map of sink and faucet superimposed upon it.

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

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

Map of the migratory pathway of glaucous gulls from Alaska to Russia and down Pacific US coastline

White barn in a rural setting in North Dakota.

A well pump in rural North Dakota.

Visitors at Winnewissa Falls in Pipestone National Monument

Researchers instruct volunteers on how to collect dragonfly larvae in Glacier NP as a part of the Dragonfly Mercury Project.

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.