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Topic
Historic lead mine in southeastern Missouri

Industrial Chemicals and Processes

Research
Fathead minnows (Pimephales promelas) swimming in an experimental aquarium

Bioactive Chemicals Research Laboratory

Project
USGS scientist collecting soil samples at the Silver State Solar South Project

Evaluation of the Migration of Palliative Chemicals Used for Dust Abatement, Clark County, Nevada

Project
Locations of sites sampled along US tributaries to the Great Lakes

Chemicals of Concern in the Great Lakes Basin

Activity
USGS scientist sampling groundwater from a well for contaminants of emerging concern, Minnesota.

Commonly Used Chemicals Measured in Minnesota Groundwater

Research
USGS scientists measured the concentrations of select endocrine disrupting chemicals (EDCs) in Spirit Creek, Georgia

Endocrine Disrupting Chemicals Persist Downstream from the Source

Research
Leachate being collected from a manhole access point in an active landfill

Pharmaceuticals and Other Chemicals Common in Landfill Waste

Project
Collecting sediment field samples to be used in an EDA

Using Effects-Directed Analysis to test for Endocrine-Active Chemicals

Project
Spider under night vision close to the camera lens

Removal of Unregulated Organic Chemicals (UOC's) in Water Treatment Processes

Research
Scientists Electrofishing on the North Branch of the Chicago River

Long-Term Study Finds Endocrine Disrupting Chemicals in Urban Waterways

Topic
Car parked next to a storm drain in the rain with water washing debris into the drain.

From Tread to Watershed: How Tire Wear Particle Chemicals 6PPD and 6PPD-quinone Are Impacting Waterways

Research
Image of land application of municipal biosolids in Orange County, NC.

Commonly Used Chemicals Transported to Agricultural Field through Municipal Biosolids Application

Project
Shenandoah municipal and industrial discharges

GIS-based landscape analysis to identify sources of endocrine disrupting chemicals

Research
Sampling well network at Fourmile Creek, Iowa

Chemicals Found in Treated Wastewater are Transported from Streams to Groundwater

Research
Biosolids are the sludge generated by the treatment of sewage at wastewater treatment plants (WWTPs). WWTPs produce a variety of

Household Chemicals and Drugs Found in Biosolids from Wastewater Treatment Plants

Activity
USGS scientist, Jeffrey Writer, holding a stone from Boulder Creek, Colo., that's covered with a biofilm

Endocrine Disrupting Chemicals in the Slick Scum that Covers Stones in Streams

Research
Night sampling of smallmouth bass (Micropterus dolomieu)

Endocrine Disrupting Chemicals and Prevalence of Intersex in Fish Populations in New Jersey

Research
Scientists collecting smallmouth bass

Endocrine Disrupting Chemicals and Prevalence of Intersex in Fish Populations in New Jersey

Research
Dusty road conditions at Squaw Creek

Program Scientist Receives Award for Research on the Effects of Road Dust Control Chemicals

Research
Photo of Pamunkey River, VA

Identify the sources and effects of toxic and endocrine-disrupting chemicals on fish and wildlife

Project
Spider under night vision close to the camera lens

Determining Loads of Sediment and Chemicals-of-Concern at the Dundee Dam, Passaic River, Patterson, New Jersey

Research
USGS scientist collecting water samples on a wastewater disposal facility

Trace Levels of Organic Chemicals Limited to Local Reaches of a Stream near an Oil and Gas Wastewater Disposal Facility

Research
Huron River at Milan, OH

Framework Developed to Evaluate the Practicality of Effects-Directed Analyses to Identify Endocrine Active Chemicals in Complex Environmental Sample Mixtures

Project
Spider under night vision close to the camera lens

Source Water Assessment for Program -- Vulnerability of Public Supply Wells and Surface Water Intakes in New Jersey to Chemicals of Concern

Research
Drinking water from a faucet

Mixtures of Organic and Inorganic Chemicals Characterized in Water from the Taps of Residences in the Greater Chicago Area— Science to Understand Contaminant Exposures in Drinking Water

Topic
Collecting blanks for PFAS from freshly decontaminated equipment.

Hydrologic and Water Quality Studies of PFAS in Pennsylvania

Project
Spider under night vision close to the camera lens

Unregulated Contaminants in WWTPs

Science Theme
A hydrologic technician prepares a water sample for testing, working within a protected lab space to prevent contamination.

Emerging Contaminants
Project
Photgraph of USGS employee surveying snowbanks at General Mitchell International Airport

Evaluating the impacts of aircraft deicers in runoff from General Mitchell International Airport, Milwaukee, Wis.

Science Theme
Avian egg injection

Ecotoxicology
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