Locally caught freshwater fish across the United States are likely a significant source of exposure to PFOS and other perfluorinated compounds

Barbo, Nadia; Stoiber, Tasha; Naidenko, Olga V.; Andrews, David Q.

doi:10.1016/j.envres.2022.115165

Cited by 68 publications

(51 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…40 Median total PFAS concentration in the national study (9.51 ng/g) was higher than the median ∑PFAS concentration observed in this study (1.60 ng/g). 40 3.2. PFAS Predictions for Fish Tissue from Random Forest Regression.…”

Section: Resultscontrasting

confidence: 79%

“…At the time of publishing this article, fish consumption advisories and recommendations in the U.S. are issued at the state or local levels, which has only been done for PFAS in fish in 14 states . Fish consumption advisories for PFAS have been issued primarily for PFOS, including an updated meal allowance recommendation for the Columbia Slough watershed in Oregon and three lakes in Washington state in 2022. , The fish tissue dataset used in this study suggests that PFOS was the main potential contributor to consumer PFAS exposure from fish in the Columbia River Basin region.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Using Geospatial Data and Random Forest To Predict PFAS Contamination in Fish Tissue in the Columbia River Basin, United States

DeLuca,

Mullikin,

Brumm

et al. 2023

Environ. Sci. Technol.

View full text Add to dashboard Cite

Decision makers in the Columbia River Basin (CRB) are currently challenged with identifying and characterizing the extent of per- and polyfluoroalkyl substances (PFAS) contamination and human exposure to PFAS. This work aims to develop and pilot a methodology to help decision makers target and prioritize sampling investigations and identify contaminated natural resources. Here we use random forest models to predict ∑PFAS in fish tissue; understanding PFAS levels in fish is particularly important in the CRB because fish can be a major component of tribal and indigenous people diet. Geospatial data, including land cover and distances to known or potential PFAS sources and industries, were leveraged as predictors for modeling. Models were developed and evaluated for Washington state and Oregon using limited available empirical data. Mapped predictions show several areas where detectable concentrations of PFAS in fish tissue are predicted to occur, but prior sampling has not yet confirmed. Variable importance is analyzed to identify potentially important sources of PFAS in fish in this region. The cost-effective methodologies demonstrated here can help address sparsity of existing PFAS occurrence data in environmental media in this and other regions while also giving insights into potentially important drivers and sources of PFAS in fish.

show abstract

Section: Resultscontrasting

confidence: 79%

Section: Resultsmentioning

confidence: 99%

Using Geospatial Data and Random Forest To Predict PFAS Contamination in Fish Tissue in the Columbia River Basin, United States

DeLuca,

Mullikin,

Brumm

et al. 2023

Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…However, these data reflect exposures from all PFAS sources rather than just drinking water. For example, fish consumption frequency has been identified as an important predictor of serum PFOS concentrations in NHANES, and freshwater fish contamination by PFAS may also be an environmental justice concern. , …”

Section: Resultsmentioning

confidence: 99%

“…For example, fish consumption frequency has been identified as an important predictor of serum PFOS concentrations in NHANES, 80 and freshwater fish contamination by PFAS may also be an environmental justice concern. 81,82 3.5. Relationships with Proportion of Residents under the Federal Poverty Line.…”

Section: Environmentalmentioning

confidence: 99%

Sociodemographic Factors Are Associated with the Abundance of PFAS Sources and Detection in U.S. Community Water Systems

Liddie

Schaider

Sunderland

2023

Environ. Sci. Technol.

View full text Add to dashboard Cite

Drinking water contaminated by per- and polyfluoroalkyl substances (PFAS) is a widespread public health concern, and exposure–response relationships are known to vary across sociodemographic groups. However, research on disparities in drinking water PFAS exposures and the siting of PFAS sources in marginalized communities is limited. Here, we use monitoring data from 7873 U.S. community water systems (CWS) in 18 states to show that PFAS detection is positively associated with the number of PFAS sources and proportions of people of color who are served by these water systems. Each additional industrial facility, military fire training area, and airport in a CWS watershed was associated with a 10–108% increase in perfluorooctanoic acid and a 20–34% increase in perfluorooctane sulfonic acid in drinking water. Waste sector sources were also significantly associated with drinking water PFAS concentrations. CWS watersheds with PFAS sources served higher proportions of Hispanic/Latino and non-Hispanic Black residents compared to those without PFAS sources. CWS serving higher proportions of Hispanic/Latino and non-Hispanic Black residents had significantly increased odds of detecting several PFAS. This likely reflects disparities in the siting of PFAS contamination sources. Results of this work suggest that addressing environmental justice concerns should be a component of risk mitigation planning for areas affected by drinking water PFAS contamination.

show abstract

“…We cannot predict the whole-fish concentrations from these gonad tissues, but because these compounds tend to accumulate in these organs, the whole fish would presumably be smaller. Comparison of our levels to environmentally exposed wild fish, a study by Barbo et al (2023) reported PFOS concentrations in fish fillets with a median of 11.8 ng/g. The present study determined PFAS contamination of all farm-raised fathead minnows.…”

Section: Fathead Minnows From Aquaculture Facilitiesmentioning

confidence: 77%

Occurrence of Per‐ and Polyfluoroalkyl Substance Contamination of Food Sources and Aquaculture Organisms Used in Aquatic Laboratory Experiments

Rushing

Schmokel

Brooks

et al. 2023

Enviro Toxic and Chemistry

View full text Add to dashboard Cite

When performing basic and translational laboratory studies with aquatic organisms, particularly for bioaccumulation, toxicity, or biotransformation experiments, it is imperative to control the route and dose of exposure. Contamination of feed and the organisms prior to study could alter the results of an experiment. Furthermore, if organisms not exposed in the lab are used for quality assurance/quality control, then blank levels, method detection limits, and limits of quantitation can be affected. In an effort to determine the magnitude of this potential issue for exposure studies involving Pimephales promelas, we analyzed a suite of 24 per-and polyfluoroalkyl substances (PFAS) in four types of feed from three different companies and in organisms from five aquaculture facilities. Contamination with PFAS was found in all types of materials and organisms from all aquaculture farms. The most frequently detected PFAS in fish feed and aquaculture fathead minnows were perfluorocarboxylic acids and perfluorooctane sulfonate (PFOS). Concentrations of total and individual PFAS in feed ranged from nondetect to 76 ng/g and from nondetect to 60 ng/g, respectively. Fathead minnows were contaminated with PFOS and perfluorohexane sulfonate as well as several perflourocarboxylic acids. Concentrations of total and individual PFAS ranged from 1.4 to 351 ng/g and from nondetect to 328 ng/g, respectively. The PFOS measured in food was primarily the linear isomer, consistent with greater bioaccumulation of that isomer in organisms raised as fish food. Future studies are necessary to define the extent of PFAS contamination in aquatic culture facilities and aquaculture production operations.

show abstract

Locally caught freshwater fish across the United States are likely a significant source of exposure to PFOS and other perfluorinated compounds

Cited by 68 publications

References 51 publications

Using Geospatial Data and Random Forest To Predict PFAS Contamination in Fish Tissue in the Columbia River Basin, United States

Using Geospatial Data and Random Forest To Predict PFAS Contamination in Fish Tissue in the Columbia River Basin, United States

Sociodemographic Factors Are Associated with the Abundance of PFAS Sources and Detection in U.S. Community Water Systems

Occurrence of Per‐ and Polyfluoroalkyl Substance Contamination of Food Sources and Aquaculture Organisms Used in Aquatic Laboratory Experiments

Contact Info

Product

Resources

About