The nCounter SPRINT† system simultaneously analyzes transcript abundance of hundreds of genes in a single sample
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![The nCounter SPRINT† system simultaneously analyzes transcript abundance of hundreds of genes in a single sample](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/ctt_iwanowicz_transcript_abundance_analyzer_1024.jpg?itok=Y5B20ewd)
The nCounter SPRINT† system simultaneously analyzes transcript abundance of hundreds of genes in a single sample
![Primary leukocytes have been isolated from experimental fish to evaluate functional immune responses](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/ctt_iwanowicz_tissue_culture_l.jpg?itok=kYCy8N1r)
Functional and Molecular Bioassay Laboratory — Kearneysville, West Virginia. Multiwell cell culture array
Functional and Molecular Bioassay Laboratory — Kearneysville, West Virginia. Multiwell cell culture array
![USGS scientists collecting oil from wells](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Bemidji%202010%20MJB%20oil%20water%20%281%29.jpg?itok=kiScMyC0)
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.
Wolf Creek site map modified from Figure 1 of 'Organic geochemistry and toxicology of a stream impacted by unconventional oil and gas wastewater disposal operations, Orem and Others, 2017'.
Wolf Creek site map modified from Figure 1 of 'Organic geochemistry and toxicology of a stream impacted by unconventional oil and gas wastewater disposal operations, Orem and Others, 2017'.
![USGS scientist collecting samples of aquatic species from the Pike River, Wis., for later analysis of mercury contamination](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/ctt_marvin-dipasquale_pike_r_june_2003_meb_crop_1024.jpg?itok=Fh6OikY1)
USGS scientist collecting samples of aquatic species from the Pike River, Wis., for later analysis of mercury contamination
USGS scientist collecting samples of aquatic species from the Pike River, Wis., for later analysis of mercury contamination
![United States occurrence of microcystins in lakes in the contiguous 48 U.S. states](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/modified_fig_2_from_loftin_and_others_2016_harmful_algae_1024.png?itok=LMWVzFK0)
United States occurrence of microcystins in lakes in the contiguous 48 U.S. states categorized by World Health Organization relative probable health risk. WHO low, moderate, and high refer to the relative human recreational health thresholds for microcystin exposure. Map not shown to scale.
United States occurrence of microcystins in lakes in the contiguous 48 U.S. states categorized by World Health Organization relative probable health risk. WHO low, moderate, and high refer to the relative human recreational health thresholds for microcystin exposure. Map not shown to scale.
![Aquariums where male fathead minnows were exposed to the effluent from a wastewater treatment plant](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/ctt_barber_edno_disrupt_fish_exposure_aquaria_1024_0.jpg?itok=m16pwn-V)
Aquariums where male fathead minnows were exposed to the effluent from a wastewater treatment plant
Aquariums where male fathead minnows were exposed to the effluent from a wastewater treatment plant
Early development zebrafish embryos are used as an alternative approach to the use of adult zebrafish in ecotoxicology studies.
Early development zebrafish embryos are used as an alternative approach to the use of adult zebrafish in ecotoxicology studies.
Confined swine feeding operation; taken by Kent Becker, unknown location.
Confined swine feeding operation; taken by Kent Becker, unknown location.
![Scientist preparing samples in a laboratory for polymerase chain reaction analysis](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/uog_wv_microbial_communities_pcr_3_fahrenfeld_l.jpg?itok=2KNHAuIB)
Scientist preparing samples in a laboratory for quantitative polymerase chain reaction (PCR) analysis
Scientist preparing samples in a laboratory for quantitative polymerase chain reaction (PCR) analysis
Hydrogeophysics Branch -- Storrs, Connecticut
Hydrogeophysics Branch -- Storrs, Connecticut
![Pollen samples from various plants collected from hedgerows](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/ctt_hladik_pollen_samples_1024.jpg?itok=y551DLnS)
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 the collection and extraction of large volumes of water in the Chesapeake Bay watershed](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/ctt_alvarez_ecl_high_volume_sampler_1024.jpg?itok=LaCuVDqw)
Environmental Chemistry Laboratory — Columbia, Missouri. Customized extraction system
Environmental Chemistry Laboratory — Columbia, Missouri. Customized extraction system
![Digestive gland from a freshwater snail (Lymnaea stagnalis)](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/ctt_lankton_snail_digestive_gland_4x_control_1024.jpg?itok=xYmqmTdA)
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](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/ctt_alvarez_ps_pocis_and_spmd_qc.jpg?itok=ZmyEaqr8)
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.
![Fathead minnows (Pimephales promelas) swimming in an experimental aquarium](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/fathead_minnows_in_experimental_aquarium_barber_crop_qc.jpg?itok=tAZpMO3_)
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.
![USGS scientist collecting samples of aquatic species from the Pike River, Wis., for later analysis of mercury contamination.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/ctt_marvin-dipasquale_pike_r_june_2003_meb_crop_l.jpg?itok=qUpFfqSQ)
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.
![A saltwater tracer was injected into the shallow aquifer at a uranium-contaminated site in Colorado](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/geophysics_uranium_naturita_site_c_qc.jpg?itok=LQbbjHqb)
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.
![Fish affected by oil and gas activities](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Blacktail%20Creek%202017%20schematic.jpg?itok=jP1CmCMu)
Diagram showing antrhopods, fish, and other aquatic life in the area of an oil and gas spill.
Diagram showing antrhopods, fish, and other aquatic life in the area of an oil and gas spill.
Filtration system used for processing samples using a technique called polymerase chain reaction (PCR) or quantitative PCR (qPCR).
Filtration system used for processing samples using a technique called polymerase chain reaction (PCR) or quantitative PCR (qPCR).
U.S. Geological Survey (USGS) scientist preparing samples for analysis of protein levels to normalize results from oxidative stress bioassays.
U.S. Geological Survey (USGS) scientist preparing samples for analysis of protein levels to normalize results from oxidative stress bioassays.