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: 323
Rural setting in North Dakota
October 5, 2020

White barn in a rural setting

White barn in a rural setting in North Dakota.

water, table, hydrologic technician, ducks, trees
September 17, 2020

USGS Hydrologic Technician Collecting Water Samples

USGS Hydrologic Technician assisting with collection of downwelling porewater samples in a PFAS-impacted lake on Cape Cod.

Satellite data derived cyanobacteria biomass estimate
February 11, 2020

Aerial image and satellite derived image of Florida Lakes

This image is a cropped rendition of  two aerial images that demonstrate satellite-derived cyanobacteria concentrations in surface waters from an area in Florida. The top image is true-color photograph, and the bottom image is from the Medium Resolution

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Cyanobacteria Bloom Magnitude Estimated for Florida and Ohio Lakes
December 4, 2019

Algal bloom magnitude in Florida lakes

(A). Algal bloom magnitude in Florida lakes in 2011 before normalization and (B) after normalization by lake surface area. Area-normalized magnitude (km−2) of selected lakes provided as part of bar labels in parenthesis. Bar height and color are proportional to annual bloom magnitude (in A) and annual area-

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Map of the study region showing the location of lakes in (A) Florida and (B) Ohio
December 4, 2019

Map of the study region showing the location of lakes in FL and OH

Map of the study region showing the location of lakes in (A) Florida and (B) Ohio. In total, 135 lakes in Florida and 21 lakes in Ohio, were resolvable with the full resolution MERIS data and are used in this study. Land and lakes are shown in gray and blue colors respectively.

The cyanobacteria Gleotrichia shown under a microscope from a water sample collected at Ek Lake Trail
August 23, 2019

The cyanobacteria Gleotrichia shown under a microscope

The cyanobacteria Gleotrichia shown under a microscope from a water sample collected at Ek Lake Trail, a popular recreational area in Kabetogama Lake where algal blooms frequently occur. Gleotrichia  can produce microcystin.

Cyanobacterial bloom
August 20, 2019

Cyanobacterial bloom at Kabetogama Lake Visitor Center

An algal bloom forming in Kabetogama Lake near Kabetogama Visitor Center, Voyageurs National Park

Two scientists viewing data on a computer screen
February 12, 2019

Scientists reviewing instrument performance

Scientists reviewing data to determine instrument performance at the Algal Toxins Laboratory in Lawrence Kansas.