USGS scientist examining human breast cancer cells under a microscope in the cell bioassay laboratory at Columbia Environmental Research Center. Behind the scientist is an automated liquid handling system for dispensing reagents into multi-well micropates for bioassay experiments.
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USGS scientist examining human breast cancer cells under a microscope
USGS scientist examining human breast cancer cells under a microscope in the cell bioassay laboratory at Columbia Environmental Research Center. Behind the scientist is an automated liquid handling system for dispensing reagents into multi-well micropates for bioassay experiments.
Bioactive Chemicals Research Laboratory -- Boulder, Colorado
Bioactive Chemicals Research Laboratory -- Boulder, Colorado. Fathead minnows (Pimephales promelas) swimming in an expermental aquaium
Bioactive Chemicals Research Laboratory -- Boulder, Colorado. Fathead minnows (Pimephales promelas) swimming in an expermental aquaium
Fathead minnows swimming in an experimental aquarium
Fathead minnows (Pimephales promelas) swimming in an expermental aquaium. The aquarium is part of an experiment to assess endocrine disruption in fish.
Fathead minnows (Pimephales promelas) swimming in an expermental aquaium. The aquarium is part of an experiment to assess endocrine disruption in fish.
USGS scientist preparing to measure cyanotoxins in water samples
USGS) scientist preparing to measure cyanotoxins in water samples using an automated enzyme-linked immunosorbent assay (ELISA) instrument
USGS) scientist preparing to measure cyanotoxins in water samples using an automated enzyme-linked immunosorbent assay (ELISA) instrument
Pressurized fluid extractor used to extract organic compounds
Organic Geochemistry Research Laboratory — Lawrence, Kansas. Pressurized Fluid Extractor
Organic Geochemistry Research Laboratory — Lawrence, Kansas. Pressurized Fluid Extractor
New (2018) instrument laboratory at the OGRL
View of the new (2018) instrument laboratory at the Organic Geochemistry Research Laboratory (OGRL), Lawrence, Kansas. View of a row of instruments in the laboratory.
View of the new (2018) instrument laboratory at the Organic Geochemistry Research Laboratory (OGRL), Lawrence, Kansas. View of a row of instruments in the laboratory.
Time-of-flight mass spectrometer used for the analysis of pesticides
Organic Geochemistry Research Laboratory — Lawrence, Kansas. Scientists working on at time-of-flight mass spectrometer
Organic Geochemistry Research Laboratory — Lawrence, Kansas. Scientists working on at time-of-flight mass spectrometer
New (2018) sample processing laboratory at the OGRL
Organic Geochemistry Research Laboratory — Lawrence, Kansas. Sample processing laboratory.
Organic Geochemistry Research Laboratory — Lawrence, Kansas. Sample processing laboratory.
Primary leukocytes have been isolated from experimental fish
Functional and Molecular Bioassay Laboratory — Kearneysville, West Virginia. Multiwell cell culture array
Functional and Molecular Bioassay Laboratory — Kearneysville, West Virginia. Multiwell cell culture array
Image-based flow cytometer for cell population analysis
Image-based flow cytometer for cell population analysis
Image-based flow cytometer for cell population analysis
nCounter SPRINT† system simultaneously analyzes transcript abundance
The nCounter SPRINT† system simultaneously analyzes transcript abundance of hundreds of genes in a single sample
The nCounter SPRINT† system simultaneously analyzes transcript abundance of hundreds of genes in a single sample
USGS scientists collecting oil from wells near Bemidji, Minnesota
U.S. Geological Survey scientists, collecting oil from wells at the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minnesota.
U.S. Geological Survey scientists, collecting oil from wells at the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minnesota.
Hydrogeophysics Branch -- Storrs, Connecticut
Hydrogeophysics Branch -- Storrs, Connecticut
Hydrogeophysics Branch -- Storrs, Connecticut
Pollen samples from various plants collected from hedgerows
Organic Chemistry Research Laboratory -- Sacramento, California. Small sample bottles with pollen inside
Organic Chemistry Research Laboratory -- Sacramento, California. Small sample bottles with pollen inside
A customized extraction system used for collection and extraction
Environmental Chemistry Laboratory — Columbia, Missouri. Customized extraction system
Environmental Chemistry Laboratory — Columbia, Missouri. Customized extraction system
Digestive gland from a freshwater snail (Lymnaea stagnalis)
National Wildlife Health Center — Madison, Wisconsin. Digestive gland from a freshwater snail (Lymnaea stagnalis)
National Wildlife Health Center — Madison, Wisconsin. Digestive gland from a freshwater snail (Lymnaea stagnalis)
Samplers used for sampling hydrophilic organic chemicals from water
Passive Sampling Research—Columbia, Missouri. The polar organic chemical integrative sampler (POCIS - on the left) and semipermeable membrane devices (SPMDs - on the right) samplers are used for sampling hydrophilic organic chemicals from water. The SPMDs sampler can also be deployed for air sampling.
Passive Sampling Research—Columbia, Missouri. The polar organic chemical integrative sampler (POCIS - on the left) and semipermeable membrane devices (SPMDs - on the right) samplers are used for sampling hydrophilic organic chemicals from water. The SPMDs sampler can also be deployed for air sampling.
A saltwater tracer was injected into the shallow aquifer
Hydrogeophysics Laboratory — Storrs, Connecticut. A saltwater tracer was injected into the shallow aquifer at a uranium-contaminated site in Colorado and monitored for 28 days using a combination of geophysical and well-sampling arrays; the sampling array is marked by the white standpipes adjacent to the central injection tank.
Hydrogeophysics Laboratory — Storrs, Connecticut. A saltwater tracer was injected into the shallow aquifer at a uranium-contaminated site in Colorado and monitored for 28 days using a combination of geophysical and well-sampling arrays; the sampling array is marked by the white standpipes adjacent to the central injection tank.
Fathead minnows swimming in an experimental aquarium
Bioactive Chemicals Research Laboratory — Boulder, Colorado. Fathead minnows (Pimephales promelas) swimming in an experimental aquarium. The aquarium is part of an experiment to assess endocrine disruption in fish.
Bioactive Chemicals Research Laboratory — Boulder, Colorado. Fathead minnows (Pimephales promelas) swimming in an experimental aquarium. The aquarium is part of an experiment to assess endocrine disruption in fish.
Collecting samples of aquatic species from the Pike River, Wisconsin
Microbial Biogeochemistry Laboratory — Menlo Park, California. USGS scientist collecting samples of aquatic species from the Pike River, Wis., for later analysis of mercury contamination.
Microbial Biogeochemistry Laboratory — Menlo Park, California. USGS scientist collecting samples of aquatic species from the Pike River, Wis., for later analysis of mercury contamination.
Cafo hogs
Confined swine feeding operation; taken by Kent Becker, unknown location.
Confined swine feeding operation; taken by Kent Becker, unknown location.