Organic Geochemistry Research Laboratory scientist collecting fish with a net during a visit to a fish hatchery in Kansas.
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Images
Organic Geochemistry Research Laboratory scientist collecting fish with a net during a visit to a fish hatchery in Kansas.

OGRL Scientists standing near a dam spillway preparing to use a field Turbidimeter in the bed of a truck.
OGRL Scientists standing near a dam spillway preparing to use a field Turbidimeter in the bed of a truck.
Comparison of sampling bottles next to parking lot drainage pipe outlet after a rain event near the Kansas Water Science Center.
Comparison of sampling bottles next to parking lot drainage pipe outlet after a rain event near the Kansas Water Science Center.

Conceptual diagram of 6PPD (green circles) and 6PPD-Q (orange circles) sources, movement, and fate in the environment. Shown with permission from the Washington State Department of Ecology.
Conceptual diagram of 6PPD (green circles) and 6PPD-Q (orange circles) sources, movement, and fate in the environment. Shown with permission from the Washington State Department of Ecology.
Map of the continental United States detailing the amount of LRC specimens collected from each state as of 12/1/2023. The specimens are split up between the amount collected from the pilot study and non-pilot study with the total count of 1,109 specimens collected.
Map of the continental United States detailing the amount of LRC specimens collected from each state as of 12/1/2023. The specimens are split up between the amount collected from the pilot study and non-pilot study with the total count of 1,109 specimens collected.
Location of continuous real-time water-quality monitoring sites and land use in the Cheney Reservoir drainage basin, south-central Kansas.
Location of continuous real-time water-quality monitoring sites and land use in the Cheney Reservoir drainage basin, south-central Kansas.
Videos

In this video, three speakers explain U.S. Geological Survey research on harmful algal blooms (HABs) and the nutrients that cause these toxic emerald-green blooms in the Nation’s lakes, reservoirs, and coastal waters.
In this video, three speakers explain U.S. Geological Survey research on harmful algal blooms (HABs) and the nutrients that cause these toxic emerald-green blooms in the Nation’s lakes, reservoirs, and coastal waters.