Publicly available data about potential PFAS sources and PFAS measurements in fish tissue. This dataset is associated with the following publication: DeLuca, N., A. Mullikin, P. Brumm, A. Rappold, and E. Hubal. Using Geospatial Data and Random Forest To Predict PFAS Contamination in Fish Tissue in the Columbia River Basin, United States. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, USA, 57: 14024-14035, (2023).

PFAS concentration, stable isotope, and organism data are provided for archived samples of marine/estuarine organisms collected in Narragansett Bay, RI, and associated offshore waters from 2006-2014. Portions of this dataset are inaccessible because: Dataset will be provided as an Excel file upon publication in journal. They can be accessed through the following means: Dataset will be provided as an Excel file. Format: Dataset will be provided as an Excel file. This dataset is associated with the following publication: Hedgespeth, M.L., D.L. Taylor, S. Balint, M. Schwartz, and M.G. Cantwell. Ecological characteristics impact PFAS concentrations in a U.S. North Atlantic food web.. SCIENCE OF THE TOTAL ENVIRONMENT. Elsevier BV, AMSTERDAM, NETHERLANDS, 880(1 July 2023): 163302, (2023).

Analytical and field sampling data for each 2018-2019 NRSA Fish Tissue Study chemical contaminant are provided, along with a data dictionary that describes the contents of each data file. All results for the fillet tissue concentrations are reported on a wet weight basis. All the fish fillet samples analyzed contained detectable levels of mercury and PCBs, and PFAS were detected in 95% of the fillet samples. This dataset is associated with the following publication: Stahl, L., B.D. Snyder, H.B. McCarty, T. Kincaid, A. Olsen, T.R. Cohen, and J. Healey. Contaminants in Fish from U.S. Rivers: Probability-Based National Assessments. SCIENCE OF THE TOTAL ENVIRONMENT. Elsevier BV, AMSTERDAM, NETHERLANDS, 861(25): 160557, (2023).

Analytical and field sampling data for each 2018-2019 NRSA Fish Tissue Study chemical contaminant are provided, along with a data dictionary that describes the contents of each data file. All results for the fillet tissue concentrations are reported on a wet weight basis. All the fish fillet samples analyzed contained detectable levels of mercury and PCBs, and PFAS were detected in 95% of the fillet samples. This dataset is associated with the following publication: Stahl, L., B.D. Snyder, H.B. McCarty, T. Kincaid, A. Olsen, T.R. Cohen, and J. Healey. Contaminants in Fish from U.S. Rivers: Probability-Based National Assessments. SCIENCE OF THE TOTAL ENVIRONMENT. Elsevier BV, AMSTERDAM, NETHERLANDS, 861(25): 160557, (2023).

Numerous per- and polyfluoroalkyl substances (PFAS) are of growing concern worldwide, due to their ubiquitous presence, bioaccumulation and adverse effects. Surface waters in the United States have displayed elevated concentrations of PFAS, but so far discrete water sampling has been the commonly applied sampling approach. Here we field-tested a novel integrative passive sampler, a microporous polyethylene (PE) tube, and derived sampling rates (Rs) for 9 PFAS in surface waters. Three sampling campaigns were conducted, deploying PE tube passive samplers in the effluent of two wastewater treatment plant (WWTP) effluent sites plants (WWTPs) and across Narragansett Bay (RI, US) for one month each in 2017/2018. Passive samplers exhibited linear uptake of PFAS in the WWTP effluents over 16-29 days, with in-situ Rs for nine PFASs ranging from 10 mL day-1 (PFPeA) to 29 mL day-1 (PFOS). Similar sampling rates of 19 ± 4.8 mL day-1 were observed in estuarine field deployments. Applying these Rs values in a different WWTP effluent predicted dissolved PFAS concentrations mostly within 50% of their observations in daily composite water samples, except for PFBA (where predictions from passive samplers were 3x greater than measured values), PFNA (1.9), PFDA (1.7) and PFPeS (0.1). These results highlight the potential use of passive samplers as measurement and assessment tools of PFAS in dynamic aquatic environments. This dataset is associated with the following publication: Gardiner, C., A. Robuck, J. Becanova, M. Cantwell, S. Kaserzon, D. Katz, J. Mueller, and R. Lohmann. Field validation of a novel passive sampler for dissolved PFAS in surface waters. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY. Society of Environmental Toxicology and Chemistry, Pensacola, FL, USA, 41(10): 2375-2385, (2022).

Per- and polyfluoroalkyl substances (PFAS) are chemicals of emerging concern that potentially pose risks to human and environmental health. In May–Oct 2018, sediment and passively collected surface water samples were collected from 62 tributary sites of the Laurentian Great Lakes with site catchments spanning gradients in land cover. Discrete samples of sediment and time-integrated surface water samples collected with polar organic chemical integrative samplers (POCIS) were analyzed for 23 and 34 PFAS, respectively. Concentrations of individual PFAS in sediment and surface water varied substantially among sites from below detection to 20,800 ng kg-1 and 247 ng L-1, respectively. Elevated PFAS concentrations occurred in urban watersheds and downstream of airports and wastewater treatment plants (WWTP). Of all target compounds, PFOS was the most frequently detected in sediment (56 of 62 sites) and had the highest median concentration (132 ng kg-1). PFOA, PFHxS, PFOS, PFHpA, and PFNA were detected in all 60 surface water sites, with median concentrations of 5.9, 5.2, 4.6, 3.7, and 1.3 ng L-1, respectively. Compounds with 8–14 fluorocarbons comprised a larger proportion of sediment PFAS than compounds with 4–7 fluorocarbons, whereas compounds with 4–7 fluorocarbons were dominant in surface waters. Watershed attributes, including urban land cover and WWTP flow fraction were positively related with PFAS sum concentrations in sediment and surface water. Collectively, these results highlight the relation PFAS occurrence has with human activities and documents widespread low-level PFAS contamination across the Great Lakes basin. This dataset is associated with the following publication: Loken LC, Corsi SR, Alvarez DA, Pronschinske MA, Lenaker PL, Nott M, Zhang C, Mani E, Ankley GT. Per- and polyfluoroalkyl substances (PFAS) in surface water and sediment in Great Lakes tributaries and relations with watershed attributes. In Review. This dataset is not publicly accessible because: It is inconsistent with established Federal practices for EPA to be the repository of data generated by the USGS. It can be accessed through the following means: All data will be completely accessible through the USGS and detailed instructions for its access will be described in the peer-reviewed journal article. Format: The data were generated by the US Geological Survey (USGS) who, like EPA, are required to make all their data publicly available through their open access website concurrent with publication of a paper. When this occurs, the data will be in a standard format, e.g., as spreadsheets with accompanying metadata. This dataset is associated with the following publication: Loken, L., S. Corsi, D. Alvarez, M. Pronschinske, P. Lenaker, M. Nott, C. Zhang, E. Mani, and G. Ankley. Per- and polyfluoroalkyl substances in surface water and sediment in Great Lakes tributaries and relations with watershed attributes. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY. Society of Environmental Toxicology and Chemistry, Pensacola, FL, USA, 44(6): 1503-1524, (2025).

Concentration data describing PFAS in whale baleen samples. This dataset is not publicly accessible because: Not EPA data, data is owned by Stanford University. It can be accessed through the following means: Contact external author Matthew Savoca at msavoca13@gmail.com. Format: Final data is in Excel format. This dataset is associated with the following publication: Savoca, M.S., A.R. Robuck, M.A. Cashman, M.G. Cantwell, L.C. Agvent, D.N. Wiley, R. Rice, S. Todd, N.E. Hunter, J. Robbins, J.A. Goldbogen, and R. Lohmann. Whale Baleen To Monitor Per- and Polyfluoroalkyl Substances (PFAS) in Marine Environments. Environmental Science & Technology Letters. American Chemical Society, Washington, DC, USA, 11(8): 862-870, (2024).

1) The purpose of this project is to document juvenile salmon habitat occurrence in the Lower Columbia River and estuary, and examine how habitat conditions influence their distribution, health, and abundance. We also want to monitor habitat conditions and indicators of salmon health in these environments. Parameters measured include habitat conditions such as vegetation, water temperature, and dissolved oxygen; salmon diet and prey availability; weight, length, growth rate, lipid content, genetic stock, and chemical contaminant exposure. 2) Lyndal Johnson (NFWSC FTE) is the project lead, and other primary staff involved are Sean Sol and Paul Olson (NWFSC FTEs) and Kate Macneale (NWFSC term employee), but the project also involves other NWFSC FTEs, other term employees, contractors, and staff from other programs (Environmental Chemistry) and Divisions (FE, CB), as well as staff from collaborating agencies (i.e, the Lower Columbia River Estuary Partnership, USGS, PNNL, OHSU). 3) The project involves field surveys in which parameters measured include habitat conditions such as vegetation, water temperature, and dissolved oxygen; salmon diet and prey availability; weight, length, growth rate, lipid content, genetic stock, and chemical contaminant exposure. 4) Specific products include annual reports for the Lower Columbia Estuary Partnership, and manuscripts in peer-reviewed journals. 5) Specific audiences include (but are not limited to) the Bonneville Power Administration and other federal, state, and local agencies involved with salmon recovery and environmental management in the Columbia Basin (e.g., EPA, Washington Department of Ecology, Oregon Department of Environmental Quality, the City of Portland); the NMFS regional office, and other agency and academic scientists. 6) This is a stand-alone project, but it is also a component of a larger monitoring program overseen by the Estuary Partnership in which other tasks are conducted by collaborators in USGS, PNNL, and OHSU. 7) This is an ongoing project with a soft completion deadline; however, there are no final deadlines with specific tasks to be completed on a yearly basis. Prey composition in diet samples and water column tows at Lower Columbia River sites.