Global occurrence and probabilistic environmental health hazard assessment of per- and polyfluoroalkyl substances (PFASs) in groundwater and surface waters

Sims, Jaylen L.; Stroski, Kevin M.; Kim, Sujin; Killeen, Grace; Ehalt, Ricardo; Simcik, Matt F.; Brooks, Bryan W.

doi:10.1016/j.scitotenv.2021.151535

Cited by 70 publications

(28 citation statements)

References 70 publications

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“…[1][2][3][4] The two most common PFAS, perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA), are common groundwater and surface water contaminants and are posing widespread risks to drinking water resources worldwide. 5,6 Given their bioaccumulative and toxic nature, [7][8][9] regulatory criteria for PFOS, PFOA and other PFAS are expected to be established in the near future. For example, Health Canada has proposed a maximum acceptable concentration (MAC) of 600 ng L −1 for PFOS and 200 ng L −1 for PFOA in drinking water.…”

Section: Introductionmentioning

confidence: 99%

The analysis of per- and polyfluoroalkyl substances in wastewater sludges and biosolids: which adsorbents should be used for the cleanup of extracts?

Ozelcaglayan

Parker

Pham

2023

Environ. Sci.: Water Res. Technol.

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Section: Introductionmentioning

confidence: 99%

The analysis of per- and polyfluoroalkyl substances in wastewater sludges and biosolids: which adsorbents should be used for the cleanup of extracts?

Ozelcaglayan

Parker

Pham

2023

Environ. Sci.: Water Res. Technol.

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“…PFASs have been widely applied in various fields involving people's daily consumer goods, business, and industry, such as surfactants, fire retardants, additives, lubricants, carpet cleaners, paper coatings, and cosmetics (Sims et al, 2022). PFASs have also been widely used in pesticides (herbicides, insecticides, etc.)…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, PFOS, perfluorooctanoic acid (PFOA), and related compounds were listed as priority pollutants in the International Stockholm Convention (Chen et al, 2022). In the past decades, shortchain PFASs or no-fluorinated substances have been recommended by global manufacturers instead of short-chain PFASs (Sims et al, 2022;Tang et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Contamination of per- and polyfluoroalkyl substances in the water source from a typical agricultural area in North China

Wang

Zhang

et al. 2023

Front. Environ. Sci.

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There is limited information on contaminations of per- and polyfluoroalkyl substances (PFASs) in the water source affected by agricultural activities. The contamination of PFASs was investigated in the sources of agricultural groundwater and nearby surface water from an important vegetable production base supply for Beijing and Tianjin, located in North China. Σ13PFAS concentrations ranged from 0.321 to 8.285 ng/L, with an average concentration of 2.022 ng/L in the groundwater and 19.673 ng/L in the surface water. With the increase in the carbon chain length, the mean concentrations of PFASs in groundwater generally showed a decreasing trend. The dominated congeners of short-chain perfluorobutanesulfonate and perfluorooctanoate acid (PFOA) were detected in all groundwater samples, with mean concentrations of 0.944 and 0.654 ng/L. The difference was that PFOA and perfluorooctanesulfonate (PFOS) were the dominant congeners in nearby surface water, with concentrations of 7.585 and 3.421 ng/L. Thus, the concentrations of PFOA and PFOS in the surface water were about 8.5 times higher than those in the groundwater, indicating that Σ13PFAS concentrations might decrease with the water migration from the overground to the underground. In addition, significant correlations were observed between PFASs and DOC/TN related to agricultural activities, suggesting a certain relationship existed between PFAS conger distributions and organic carbon/nutrients in water. Health risk assessment indicated that the PFAS exposure caused insignificantly immediate harm to residents in the studied area. This survey provided information on the sources, spatial distribution, and potential migration characteristics of PFASs in a typical agricultural area of North China.

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“…PFCAs differ greatly from other well-studied organic pollutants (e.g., polychlorinated biphenyl) as they tend to have low octanol/water partition coefficients (logK ow ) resulting in lower affinity to sediments and soils and higher water solubility (Davis et al, 2007). Consequently, both PFOA and PFHxA are frequently detected from bodies of waters around the globe (Sun et al, 2018;Muir and Miaz, 2021;Sims et al, 2022), where they end up directly from point-sources or indirectly as a wet or dry fall (Knepper et al, 2012). So far, PFOA is generally detected more often, and in higher concentrations, from the surface waters compared to PFHxA (Eschauzier et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Comparing the Ecotoxicological Effects of Perfluorooctanoic Acid (PFOA) and Perfluorohexanoic Acid (PFHxA) on Freshwater Microbial Community

Laine

Vesamäki

Puupponen

et al. 2022

Front. Environ. Sci.

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The ubiquitous presence of perfluorinated carboxylic acids (PFCAs) around the globe has attracted increasing attention, due to their persistency, bioaccumulation, and toxicity. Nevertheless, the ecotoxicological effects of the compounds on aquatic microorganisms has remained understudied. Hence, the present study focused on determining, and comparing, the effects of regulated long-chain PFCA, perfluorooctanoic acid (PFOA), and nonregulated short-chain PFCA, perfluorohexanoic acid (PFHxA), on the diversity, structure, microbial growth, and activity of a freshwater microbial community. In the experiment, lake water was incubated for a period of four weeks at three different concentrations of the studied PFCAs: 100 ng/L, 100 μg/L, and 10 mg/L. The results suggested that both compounds at high concentration (10 mg/L) altered the structure of the microbial community, but the diversity was not affected. Both compounds also decreased the microbial biovolume at higher concentrations and the increasing dose added to the significance of the impact, whereas inhibition of net microbial respiration could not be demonstrated. PFOA showed more potent toxicity towards the microbial community as it caused more significant structural changes to the community and significantly inhibited microbial growth even at the low 100 ng/L concentration. This study helps to better understand the ecotoxicity of PFCAs and to assess the environmental risks associated with their use. Additionally, these results can help policy makers to better assess the environmental risks posed by short-chain PFCAs on aquatic ecosystems.

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Global occurrence and probabilistic environmental health hazard assessment of per- and polyfluoroalkyl substances (PFASs) in groundwater and surface waters

Cited by 70 publications

References 70 publications

The analysis of per- and polyfluoroalkyl substances in wastewater sludges and biosolids: which adsorbents should be used for the cleanup of extracts?

The analysis of per- and polyfluoroalkyl substances in wastewater sludges and biosolids: which adsorbents should be used for the cleanup of extracts?

Contamination of per- and polyfluoroalkyl substances in the water source from a typical agricultural area in North China

Comparing the Ecotoxicological Effects of Perfluorooctanoic Acid (PFOA) and Perfluorohexanoic Acid (PFHxA) on Freshwater Microbial Community

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