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Environmental Health Program

The Environmental Health Program (Contaminant Biology and Toxic Substances Hydrology) supports integrated natural science expertise and capabilities across the USGS related to environmental contaminants and pathogens. This One Health approach recognizes the interdependence of human and animal health and the health of ecosystems that they share. 

News

Geospatial Applications to Visualize Science and Support Decision‑Making Across Scales

Geospatial Applications to Visualize Science and Support Decision‑Making Across Scales

EcoNews | Winter 2026 - Vol. 7 | Issue 1

EcoNews | Winter 2026 - Vol. 7 | Issue 1

Director's Message: To All of Our Partners, Thank You!

Director's Message: To All of Our Partners, Thank You!

Publications

Per- and polyfluoroalkyl substances in waters associated with oil and gas development in the Denver Basin Per- and polyfluoroalkyl substances in waters associated with oil and gas development in the Denver Basin

Use of per- and polyfluoroalkyl substances (PFAS) in the petroleum industry could be a cause for concern due to the large volumes of produced water (PW) generated during oil and gas extraction, the reuse of these wastes in water-stressed regions, and adverse health outcomes related to PFAS exposures. However, PW PFAS characterization is nearly absent in the literature, and hydraulic...
Authors
Matthew S. Varonka, Aaron M. Jubb, Bonnie McDevitt, Jenna L. Shelton, Elliott P. Barnhart, Denise M. Akob, Isabelle M. Cozzarelli

Pathways for potential exposure to onshore oil and gas wastewater: What we need to know to protect human health Pathways for potential exposure to onshore oil and gas wastewater: What we need to know to protect human health

Produced water is a chemically complex waste stream generated during oil and gas development. Roughly four trillion liters were generated onshore in the United States in 2021 (ALL Consulting, 2022, https://www.gwpc.org/wp-content/uploads/2021/09/2021_Produced_Water_Volumes.pdf). Efforts are underway to expand historic uses of produced water to offset freshwater needs in water-stressed...
Authors
Ayusha Ariana, Isabelle M. Cozzarelli, Cloelle Danforth, Bonnie McDevitt, Anna Rosofsky, Donna Vorhees

A multidisciplinary approach that considers occurrence, geochemistry, bioavailability, and toxicity to prioritize critical minerals for environmental research A multidisciplinary approach that considers occurrence, geochemistry, bioavailability, and toxicity to prioritize critical minerals for environmental research

Critical minerals (or critical elements) are minerals or elements that are essential to global security and development and have supply chains vulnerable to disruption. In general, knowledge of the environmental behavior and health effects of critical elements is needed to support the development of safe and environmentally responsible supplies. This knowledge includes identifying...
Authors
Sarah Jane White, Tyler Kane, Kate M. Campbell, Marie Noele Croteau, Michael G. Iacchetta, Johanna Blake, Charles A. Cravotta, Bethany K. Kunz, Charles N. Alpers, Jill Jenkins, Katherine Walton-Day

Science

Tracking Toxins at the Coastline: A National Look at Harmful Algal Toxins in U.S. Coastal Waters

This study is a major step forward in understanding how harmful algal blooms, which are often associated with lakes and rivers, can also affect coastal environments. It provides important baseline information for scientists, public health officials, and environmental managers.
Tracking Toxins at the Coastline: A National Look at Harmful Algal Toxins in U.S. Coastal Waters

Tracking Toxins at the Coastline: A National Look at Harmful Algal Toxins in U.S. Coastal Waters

This study is a major step forward in understanding how harmful algal blooms, which are often associated with lakes and rivers, can also affect coastal environments. It provides important baseline information for scientists, public health officials, and environmental managers.
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From Stream to Spider: How PFAS Move Through Aquatic and Terrestrial Food Webs

Per- and polyfluoroalkyl substances (PFAS) are persistent synthetic chemicals that accumulate in the environment and living organisms. A USGS study examined how different PFAS compounds move through a stream ecosystem and are transferred from aquatic to terrestrial food webs. The findings documented that not all PFAS behave the same once they enter the environment, leading to differences in...
From Stream to Spider: How PFAS Move Through Aquatic and Terrestrial Food Webs

From Stream to Spider: How PFAS Move Through Aquatic and Terrestrial Food Webs

Per- and polyfluoroalkyl substances (PFAS) are persistent synthetic chemicals that accumulate in the environment and living organisms. A USGS study examined how different PFAS compounds move through a stream ecosystem and are transferred from aquatic to terrestrial food webs. The findings documented that not all PFAS behave the same once they enter the environment, leading to differences in...
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Bioenergy and Pesticides: Lessons from the AltEn Bioenergy Plant

Ethanol production from seed corn, while reducing waste and promoting renewable energy, can have environmental and health implications. A USGS study on a former bioenergy plant that received pesticide-coated seeds used for ethanol production, revealed that the process led to contaminated wastewater and solid residue, resulting in elevated pesticide levels in nearby surface waters even after the...
Bioenergy and Pesticides: Lessons from the AltEn Bioenergy Plant

Bioenergy and Pesticides: Lessons from the AltEn Bioenergy Plant

Ethanol production from seed corn, while reducing waste and promoting renewable energy, can have environmental and health implications. A USGS study on a former bioenergy plant that received pesticide-coated seeds used for ethanol production, revealed that the process led to contaminated wastewater and solid residue, resulting in elevated pesticide levels in nearby surface waters even after the...
Learn More
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