Environmental fate and transport of per- and polyfluoroalkyl substances (PFAS). PFAS can be from direct and indirect releases or emissions of PFAS from producers or industrial facilities manufacturing PFAS (outlined in red). Primary sources (outlined in orange) include consumer goods, PFAS-containing firefighting foams, landfills, and wastewater treatment plants.
Multimedia
One-stop collection of videos, photography, and audio. All items in this gallery are considered public domain unless otherwise noted.
Images
PFAS Fate Transport Diagram
Environmental fate and transport of per- and polyfluoroalkyl substances (PFAS). PFAS can be from direct and indirect releases or emissions of PFAS from producers or industrial facilities manufacturing PFAS (outlined in red). Primary sources (outlined in orange) include consumer goods, PFAS-containing firefighting foams, landfills, and wastewater treatment plants.
Car parked near an urban storm drain in Virginia.
Urban stormwater drains are used to channel runoff from precipitation away from roads for treatment and to prevent flooding. Contaminants in water can also be transported through stormwater systems in rain and snowmelt runoff.
Urban stormwater drains are used to channel runoff from precipitation away from roads for treatment and to prevent flooding. Contaminants in water can also be transported through stormwater systems in rain and snowmelt runoff.
Long-tailed duck diving for underwater hearing testing.
Long-tailed duck diving for underwater hearing testing in an experimental chamber in which the birds’ diving behavior can be studied under various environmental conditions.
Long-tailed duck diving for underwater hearing testing in an experimental chamber in which the birds’ diving behavior can be studied under various environmental conditions.
Candling of grey catbird egg to determine viability
Candling (the process of using light to help determine the quality of an egg) of a grey catbird egg to determine viability.
Candling (the process of using light to help determine the quality of an egg) of a grey catbird egg to determine viability.
Surf Scoter completing an underwater behavioral hearing test.
Surf Scoter completing an underwater behavioral hearing test in an experimental chamber in which the birds’ diving behavior can be studied under various environmental conditions.
Surf Scoter completing an underwater behavioral hearing test in an experimental chamber in which the birds’ diving behavior can be studied under various environmental conditions.
Long-tailed duck from hatch to subadult.
Composite image showing five life stages of a Long-tailed duck, from hatch to subadult.
Composite image showing five life stages of a Long-tailed duck, from hatch to subadult.
Videos
The Animated Nitrogen Cycle
This animation of the biogeochemical nitrogen cycle illustrates the main steps of the cycle in air, water, and soils. The video explains and connects the many forms of nitrogen, such as ammonia, ammonium, hydroxylamine, nitrite, nitrate, nitrous oxide, and nitrogen dioxide, and explains the role of nitrate in nitric oxide signaling in the human body.
This animation of the biogeochemical nitrogen cycle illustrates the main steps of the cycle in air, water, and soils. The video explains and connects the many forms of nitrogen, such as ammonia, ammonium, hydroxylamine, nitrite, nitrate, nitrous oxide, and nitrogen dioxide, and explains the role of nitrate in nitric oxide signaling in the human body.
The Animated Nitrogen Cycle (AD)
This animation of the biogeochemical nitrogen cycle illustrates the main steps of the cycle in air, water, and soils. The video explains and connects the many forms of nitrogen, such as ammonia, ammonium, hydroxylamine, nitrite, nitrate, nitrous oxide, and nitrogen dioxide, and explains the role of nitrate in nitric oxide signaling in the human body.
This animation of the biogeochemical nitrogen cycle illustrates the main steps of the cycle in air, water, and soils. The video explains and connects the many forms of nitrogen, such as ammonia, ammonium, hydroxylamine, nitrite, nitrate, nitrous oxide, and nitrogen dioxide, and explains the role of nitrate in nitric oxide signaling in the human body.
Coho Salmon 6PPD-Q Exposure Study
Juvenile Coho salmon (Oncorhynchus kisutch) exhibiting abnormal behaviors associated with exposure to 6PPD-quinone, a derivative of the compound 6PPD which is used in tires to prevent wear.
Juvenile Coho salmon (Oncorhynchus kisutch) exhibiting abnormal behaviors associated with exposure to 6PPD-quinone, a derivative of the compound 6PPD which is used in tires to prevent wear.
USGS Laboratory for the Analysis of Per- and Polyfluoroalkyl Substances (PFAS)
The U.S. Geological Survey laboratory for the analysis of per- and polyfluoroalkyl substances (PFAS) uses cutting-edge techniques to analyze environmental samples including tissues, plasma, water, and soils to undertake and support research projects across the country.
The U.S. Geological Survey laboratory for the analysis of per- and polyfluoroalkyl substances (PFAS) uses cutting-edge techniques to analyze environmental samples including tissues, plasma, water, and soils to undertake and support research projects across the country.
PAHs/Coal Tar Sealants Effects on Environment & Human Health
Webinar on USGS research findings on Polycyclic Aromatic Hydrocarbons (PAH) contamination associated with coal-tar-based sealants and implications for environmental and human health. Dr.
Webinar on USGS research findings on Polycyclic Aromatic Hydrocarbons (PAH) contamination associated with coal-tar-based sealants and implications for environmental and human health. Dr.
Trends in Nutrients and Pesticides in the Nation's Rivers
Congressional Briefing at the Capitol Visitors Center on April 11, 2014. The briefing focuses on the Mississippi River Basin, which covers about 40% of the nation and represents a wide range of important climatic, agricultural, and urban influences that are present throughout the country.
Congressional Briefing at the Capitol Visitors Center on April 11, 2014. The briefing focuses on the Mississippi River Basin, which covers about 40% of the nation and represents a wide range of important climatic, agricultural, and urban influences that are present throughout the country.