Toxic Substances Hydrology Program

Multimedia

One-stop collection of videos, photography, and audio. All items in this gallery are considered public domain unless otherwise noted.

Filter Total Items: 216
Microscopic video imaging is used for computerized analysis of sperm motility parameters
September 20, 2017

Microscopic video imaging is used for computerized analysis of sperm m

Photomicroscopy and Flow Cytometry Laboratory — Lafayette, Louisiana. Microscopic video imaging is used for computerized analysis of sperm motility parameters

A U.S. Geological Survey (USGS) microbiologist prepares a water sample for enterococci testing
September 13, 2017

A U.S. Geological Survey (USGS) microbiologist prepares a water sample

Michigan Bacteriological Research Laboratory — Lansing, Michigan. A microbiologist preparing a water sample

Inside a Debris Cage at a Stormwater Outfall
June 19, 2017

One of 21 Stormwater Outfalls Sampled

Inside a debris cage, which is used to prevent pipe blockages, at one of 21 stormwater outfalls that was sampled prior to discharge to streams or stormwater ponds.

A Stormwater Discharge Pond
June 19, 2017

This Pond Receives Stormwater Runoff from a Residential Landscape

A stormwater pond that receives runoff from a residential landscape. U.S. Geological Survey scientists analyzed samples of stormwater runoff collected during 2016 and 2017 at 21 sites for 438 organic chemicals and 62 inorganic elements.

Willow Spring in Hack Canyon in Arizona north of the Grand Canyon
April 19, 2017

Willow Spring in Hack Canyon in Arizona north of the Grand Canyon

Willow Spring in Hack Canyon in Arizona north of the Grand Canyon. A sign next to the spring says Water Not Suitable for Drinking. The spring has elevated levels of uranium and selenium. The elevated uranium level is most likely not associated with breccia-pipe uranium mining in the area.

A custom automated pathogen sampler and schematic illustration.
March 13, 2017

A custom automated pathogen sampler and schematic illustration.

A photograph of U.S. Geological Survey (USGS) custom automated pathogen sampler (top) and schematic illustrating the remote-unattended-automated pathogen sampler (bottom). Sample collection proceeds over the course of a runoff-event or low-flow period for up to a maximum of 5 days before a site visit by personnel is needed to collect the samples.

Buras water tank
February 28, 2017

Buras water tank, eye of Hurricane Katrina made its strongest landfall

New Orleans, La., July 29, 2008 -- Buras has become famous as the location where, on August 29, 2005, at 6:10 AM CDT, the eye of Hurricane Katrina, made its strongest landfall. The town's freshing painted water tower stands as a symbol of recovery for the state and the community. Jacinta Quesada/FEMA

Cumulative impacts of oil and gas production on watersheds in North Dakota between January 2008 and June 2015
January 6, 2017

Cumulative impacts of oil and gas production on watersheds in ND

Cumulative impacts of oil and gas production on watersheds in North Dakota between January 2008 and June 2015. Watershed volumes were calculated by combining reported values of oil, brine, and unidentified liquid waste accidentally released during drilling operations. Modified from figure 1, Cozzarelli and others

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Raised black external tumors on an adult brown bullhead fish
December 31, 2016

Raised Black External Tumors on an Adult Brown Bullhead Fish

Raised black external tumors on adult brown bullhead (Ameiurus nebulosus) collected from Lake Memphremagog (Vermont and Canadian Border) were identified as malignant melanoma in a 2014–17 study.

Team of scientists studied changes in nitrapyrin
December 31, 2016

Team of scientists studied changes in nitrapyrin

A team of scientists studied changes in nitrapyrin — a nitrification inhibitor applied with fertilizers as a bactericide to kill natural soil bacteria for the purpose of increasing crop yields — occurrence associated with land use changes from March to June 2016. The above photographs document the following conditions: recent anhydrous ammonia application (upper left),

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Burning coal to provide energy contributes mercury to the atmosphere
December 31, 2016

Burning coal to provide energy contributes mercury to the atmosphere

Burning coal to provide energy contributes mercury to the atmosphere

Diatom mat used during a feeding experiment to study the dietary uptake of uranium by mayflies
October 18, 2016

Diatom mat used during a feeding experiment to study dietary uptake

Diatom mat used during a feeding experiment to study the dietary uptake of uranium by mayflies