Images

Landsat 8 captured this image of Lake Erie during a harmful algal bloom event on September 26, 2017. 

Dr. Bethany K. Kunz sets up a mobile-mounted dust meter, which measures concentrations of particulate matter across a range of particle sizes. She and her team use the meter to determine the effectiveness of dust control treatments on roads and estimate human exposure to dust in the inhalable size range.

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 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.

USGS scientist collecting water quality parameters from Horn Creek, a small side drainage in Grand Canyon in Aprill, 2017

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.

Iowa River at Iowa City

Scientist preparing for granular activated carbon experiments

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.

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

Wastewater from oil production in the Williston Basin leaked from a pipeline, spilling into Blacktail Creek, North Dakota. Geochemical and biological samples were to identify geochemical signatures of spilled wastewaters as well as biological responses. 

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.

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.

Photomontage of multiple pictures showing environmental changes including within wildlife and urban environments

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.

Iron Reducing Bacteria
FeRB isolated using a roll bottle technique from the former Uranium Mine near Ronneburg, Germany, Photo credit: Denise Akob, USGS

Burning coal to provide energy contributes mercury to the atmosphere

Bladder cancer rates have been elevated in northern New England for at least 5 decades in males and females, which suggests environmental causal factors.

A map of Ohio showing the locations of recreational areas sampled in the 201314 study. Modified from figure 1, Francy and others, 2016.

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

The new Damage Assessment and Restoration Tracking System (DARTS) Web site provides an interactive map that identifies Natural Resource Damage Assessment and Restoration (NRDAR) cases. The shapes of icons represent incident type; icon color represents the status of the case.