U.S. Geological Survey scientists analyzing samples for viral pathogens at the Laboratory for Infectious Disease and the Environment.
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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 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.
USGS Scientist preparing for sampling water for avian influenza analyses near a pond at Horicon National Wildlife Refuge
linkUSGS scientist sampling water at Horicon National Wildlife Refuge for analysis of avian influenza to determine if wild bird habitat is a reservoir of the virus.
USGS Scientist preparing for sampling water for avian influenza analyses near a pond at Horicon National Wildlife Refuge
linkUSGS scientist sampling water at Horicon National Wildlife Refuge for analysis of avian influenza to determine if wild bird habitat is a reservoir of the virus.
New Croton Dam is part of New York City's water supply system
The New Croton Dam is part of New York City's water supply system, Croton-on-Hudson, Westchester County, New York.
The New Croton Dam is part of New York City's water supply system, Croton-on-Hudson, Westchester County, New York.
Idealized diagram of a public water supply's water distribution system
Idealized diagram of a public water supply's water distribution system.
Idealized diagram of a public water supply's water distribution system.
USGS scientist collecting sample from the stream prior to manure spill
USGS scientist collecting a water sample from the stream prior to the swine manure spill.
USGS scientist collecting a water sample from the stream prior to the swine manure spill.
Mayfly in Idaho
A recently emerged mayfly collected downstream of the Cinnabar mercury mine site in central Idaho.
A recently emerged mayfly collected downstream of the Cinnabar mercury mine site in central Idaho.
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 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
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.
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.
Smallmouth bass
Smallmouth bass skin with melanistic lesions.
Smallmouth bass skin with melanistic lesions.
Vial containing an egg sample that will undergo chemical extraction
Organic Chemistry Research Laboratory — Sacramento, California. Vial containing an egg sample
Organic Chemistry Research Laboratory — Sacramento, California. Vial containing an egg sample
Satellite Data Derived Cyanobacteria Concentrations
Two aerial images that demonstrate satellite-derived cyanobacteria concentrations in surface waters from an area in Florida.
Two aerial images that demonstrate satellite-derived cyanobacteria concentrations in surface waters from an area in Florida.
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.
Transmission electron micrographs of complete hepatitis B virus
Transmission electron micrographs of complete hepatitis B viral particles
Transmission electron micrographs of complete hepatitis B viral particles
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
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 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. 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.
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.
The quality of the water we drink can inpact our health
The quality of the water we drink can inpact our health.
The quality of the water we drink can inpact our health.