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U.S. Geological Survey laboratories to middle school students
U.S. Geological Survey laboratories to middle school students
U.S. Geological Survey laboratories to middle school students
U.S. Geological Survey laboratories to middle school students

Dr. Denise Akob and Dr. Karl Haase give a tour of U.S. Geological Survey laboratories to middle school students. The tour was part of the White House's My Brother's Keeper Day at the Lab.

A map showing the locations of decision units surrounding the Canyon Mine, Arizona
A map showing the locations of decision units at the Canyon Mine, AZ
A map showing the locations of decision units at the Canyon Mine, AZ
A map showing the locations of decision units at the Canyon Mine, AZ

A map showing the locations of decision units surrounding the Canyon Mine, Arizona. The scientists used a incremental sampling methodology to collect samples from the predefined decision units. The points (squares and circles) indicate locations where surface soil subsamples were collected during June 2013.

A map showing the locations of decision units surrounding the Canyon Mine, Arizona. The scientists used a incremental sampling methodology to collect samples from the predefined decision units. The points (squares and circles) indicate locations where surface soil subsamples were collected during June 2013.

USGS Laboratory for Infectious Disease and the Environment
USGS Laboratory for Infectious Disease and the Environment
USGS Laboratory for Infectious Disease and the Environment
USGS Laboratory for Infectious Disease and the Environment

U.S. Geological Survey scientists analyzing samples for viral pathogens at the Laboratory for Infectious Disease and the Environment.

A comparison of streamflow and specific conductance (a measure of salinity) in Muddy Creek, Wyoming
A comparison of streamflow and specific conductance in Muddy Creek, WY
A comparison of streamflow and specific conductance in Muddy Creek, WY
A comparison of streamflow and specific conductance in Muddy Creek, WY

A comparison of streamflow and specific conductance (a measure of salinity) in Muddy Creek, Wyoming, for individual years from 2005 to 2012. Salt content decreases as streamflow increases, a common pattern in semiarid watersheds.

A comparison of streamflow and specific conductance (a measure of salinity) in Muddy Creek, Wyoming, for individual years from 2005 to 2012. Salt content decreases as streamflow increases, a common pattern in semiarid watersheds.

A scientist working in a laboratory
A Scientist Working in a Laboratory Measuring Pharmaceuticals in Water
A Scientist Working in a Laboratory Measuring Pharmaceuticals in Water
A Scientist Working in a Laboratory Measuring Pharmaceuticals in Water

A PhD fellow from the University of York measuring pharmaceutical concentrations in samples collected from the Rivers Foss and Ouse, United Kingdom, during her work at the U.S. Geological Survey (USGS) National Water Quality Laboratory.

A PhD fellow from the University of York measuring pharmaceutical concentrations in samples collected from the Rivers Foss and Ouse, United Kingdom, during her work at the U.S. Geological Survey (USGS) National Water Quality Laboratory.

U.S. Geological Survey (USGS) scientists processing leachate samples
U.S. Geological Survey (USGS) Scientists Processing Leachate Samples
U.S. Geological Survey (USGS) Scientists Processing Leachate Samples
U.S. Geological Survey (USGS) Scientists Processing Leachate Samples

U.S. Geological Survey (USGS) scientists processing leachate samples collected for a national-scale study on the occurrence of contaminants of emerging concern (CECs) in landfill leachate disposed offsite. 

U.S. Geological Survey (USGS) scientists processing leachate samples collected for a national-scale study on the occurrence of contaminants of emerging concern (CECs) in landfill leachate disposed offsite. 

Field exposure setup at a wastewater treatment plant
Field exposure setup at a wastewater treatment plant
Field exposure setup at a wastewater treatment plant
Field exposure setup at a wastewater treatment plant

A view of the field exposure setup where the scientists exposed both larval and adult fathead minnows to treated effluent from a wastewater treatment plant.

Satellite Image Showing Estimated Cyanobacteria Concentrations
Satellite Data Derived Cyanobacteria Concentrations
Satellite Data Derived Cyanobacteria Concentrations
Satellite Data Derived Cyanobacteria Concentrations

Two aerial images that demonstrate satellite-derived cyanobacteria concentrations in surface waters from an area in Florida.

A man in a yellow personal flotation device waves from a metal boat on a reservoir with the shore in the background.
Hells Canyon Sediment Collection
Hells Canyon Sediment Collection
Hells Canyon Sediment Collection

Field sampling in the Hells Canyon Reservoir Complex, with Dr. M. Marvin-DiPasquale at the bow of the sediment collection boat. Photographer: D. Krabbenhoft.

Field sampling in the Hells Canyon Reservoir Complex, with Dr. M. Marvin-DiPasquale at the bow of the sediment collection boat. Photographer: D. Krabbenhoft.

USGS scientists retrieve sampler from a boat
USGS Scientists Retrieve a Caged Mussel Sampler from a Boat
USGS Scientists Retrieve a Caged Mussel Sampler from a Boat
USGS Scientists Retrieve a Caged Mussel Sampler from a Boat

U.S. Geological Survey (USGS) scientists retrieve and process an ecological processing monitoring station. Each station includes a caged native mussel (shown attached to the buoy rope) and a sampler for measuring invertebrate consumers (not shown).

U.S. Geological Survey (USGS) scientists retrieve and process an ecological processing monitoring station. Each station includes a caged native mussel (shown attached to the buoy rope) and a sampler for measuring invertebrate consumers (not shown).

Water-quality tracking tool maps
Water-quality tracking tool maps
Water-quality tracking tool maps
Water-quality tracking tool maps

Maps showing the use of the new water-quality tracking tool to track water-quality conditions at 106 river and stream sites throughout the Nation.

Maps showing the use of the new water-quality tracking tool to track water-quality conditions at 106 river and stream sites throughout the Nation.

Scientist deploying a silicone passive sampler
Scientist deploying a silicone passive sampler in Cerro Gordo County
Scientist deploying a silicone passive sampler in Cerro Gordo County
Scientist deploying a silicone passive sampler in Cerro Gordo County

Scientist deploying a silicone passive sampler near a corn field in Cerro Gordo County, Iowa. The science team used the passive samplers to quantify pesticide exposure in wetland, grassland, and agricultural habitats.

Scientist deploying a silicone passive sampler near a corn field in Cerro Gordo County, Iowa. The science team used the passive samplers to quantify pesticide exposure in wetland, grassland, and agricultural habitats.

A Diagram of the Life Stages of Pacific Lamprey
A Diagram of the Life Stages of Pacific Lamprey
A Diagram of the Life Stages of Pacific Lamprey
A Diagram of the Life Stages of Pacific Lamprey

A diagram of the life stages of Pacific lamprey. Adults spawn in freshwater streams, then the larvae live in sediments. Juveniles then migrate to the ocean. After a life in the ocean they return to streams to spawn and die.

A diagram of the life stages of Pacific lamprey. Adults spawn in freshwater streams, then the larvae live in sediments. Juveniles then migrate to the ocean. After a life in the ocean they return to streams to spawn and die.

USGS scientist collecting groundwater samples
Sampling Groundwater for poly- and Perfluoroalkyl Substances
Sampling Groundwater for poly- and Perfluoroalkyl Substances
Sampling Groundwater for poly- and Perfluoroalkyl Substances

U.S. Geological Survey (USGS) scientist collecting groundwater samples for analysis of poly- and perfluoroalkyl substances (PFASs) from a multiport monitoring well downgradient from a former fire-training area on western Cape Cod, Massachusetts.

U.S. Geological Survey (USGS) scientist collecting groundwater samples for analysis of poly- and perfluoroalkyl substances (PFASs) from a multiport monitoring well downgradient from a former fire-training area on western Cape Cod, Massachusetts.

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