Perfluoroalkyl substances in sediments from the Bering Sea to the western Arctic: Source and pathway analysis

Lin, Yan; Jiang, Jheng-Jie; Rodenburg, Lisa A.; Cai, Meijun; Wu, Zhai; Ke, Hongwei; Chitsaz, Mahdi

doi:10.1016/j.envint.2020.105699

Cited by 57 publications

(21 citation statements)

References 70 publications

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“…Other research conducted in China (the Jiulong Estuary-Xiamen Bay) indicates the presence of PFASs at lower levels (ΣPFAS-3.0-5.4 ng/g d.w.) [19]. Furthermore, in other areas, ΣPFAS was up to a few ng/g d.w. [4,11,17,[20][21][22]. In the case of samples taken at the mouth of the Vistula, the recorded values are higher (average Σ17PFAS = 77 ng/g d.w.) but lower than those obtained by Bai et al (2021) for the area of the Truckee River and Las Vegas Wash (average Σ17PFAS = 272.9 and 345.7 ng/g d.w., respectively) [23].…”

Section: Discussionmentioning

confidence: 90%

“…PFBS, PFHxS, and PFOS have also been determined in sediments of the Bering Shelf and the Chukchi Sea. The largest ratio was observed for PFOS (35%) followed by PFHxS and PFBS (16% each) [22]. The results of other sediment studies by Kahkashan et al (2019) in the Chukchi Sea, the Bering Sea, and Arctic Ocean area indicated that PFBS, PFOA, and PFOS were the dominant PFASs in these areas [24].…”

Section: Wtp I-wtp IVmentioning

confidence: 83%

“…However, some samples from nearby locations are in different clusters, for example, those collected at WTP II, which means that there is a certain variability in PFASs concentrations. Some authors indicate that the content of organic carbon and grain size have an influence on PFASs concentration distribution in sediments [13,22,31], so this relationship has also been analyzed. Sediment characteristics are presented in Table S3.…”

Section: Wtp I-wtp IVmentioning

confidence: 99%

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Environmental Risk Assessment Resulting from Sediment Contamination with Perfluoroalkyl Substances

et al. 2020

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Due to wide use of perfluoroalkyl substances (PFASs) (e.g., in metal-plating, in fire-fighting foam, lubricants) and their resistance to degradation, they occur widely in the environment. The aim of this study was to estimate the environmental risk resulting from the presence of PFASs in the Gulf of Gdansk. Therefore, 17 PFASs concentrations were determined using ultra performance liquid chromatography with tandem mass spectrometry detection (UPLC-MS/MS). Additionally, sediment ecotoxicity was investigated. The results of the chemical analysis were used to asses environmental risk of PFASs. In samples collected around discharge collectors from a wastewater treatment plant and the Vistula mouth, Σ17PFASs values were 0.00403 ÷ 40.6 and 0.509 ÷ 614 ng/g d.w., respectively. In samples collected around discharge collectors, PFHxA, PFPeA, PFHpA, and PFOA were dominating, while at the Vistula River mouth, PFHxS, PFDS, and PFBS were prevalent. For most sediments, no toxic effect was observed in the toxicity tests with Heterocypris inconguens and Aliivibrio ficsheri. There was no observed correlation between the PFASs level and their ecotoxicity. Generally, the results of environmental risk assessment indicate that the PFASs would not generate high impact on the aquatic life (five water samples have shown medium risk related to PFBS and PFDoA).

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Section: Discussionmentioning

confidence: 90%

Section: Wtp I-wtp IVmentioning

confidence: 83%

Section: Wtp I-wtp IVmentioning

confidence: 99%

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Environmental Risk Assessment Resulting from Sediment Contamination with Perfluoroalkyl Substances

et al. 2020

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“…They are primarily transported in the environment and spread around the globe due to their persistent and bioaccumulative characteristics (Conder et al, 2008;Simon et al, 2019). PFASs have been found in the air, water, and soil around the world and have been detected even in polar regions (MacInnis et al, 2019;Lin et al, 2020;Xie et al, 2020). Perfluorooctane sulfonate (PFOS), perfluorooctanoate carboxylate (PFOA), and perfluorohexanesulfonic acid (PFHxS), as well as their salts, are listed as persistent organic pollutants (POPs) under the Stockholm Convention (UNEP, 2009;Stockholm Convention, 2017).…”

Section: Introductionmentioning

confidence: 99%

Occurrence, Profile, and Potential Risks of Novel and Legacy Polyfluoroalkyl Substances in Bullfrogs: Pilot Study in an Intensive Aquaculture Region, China

Sun

Xiong

et al. 2021

Front. Environ. Sci.

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Per- and polyfluoroalkyl substances (PFASs) have captured worldwide attention due to their persistent and bioaccumulative characteristics. The bullfrog is a highly nutritious and edible aquatic product, but the PFAS accumulation characteristics of bullfrogs had not been paid attention. The present study analyzed the PFAS concentrations in different tissues of cultured bullfrogs and relevant water and sediments collected from the aquaculture region in the coastal area of South China. Results showed that total PFAS concentrations were 50.26–364.25 ng/L in water, with a mean of 135.58 ng/L; concentrations in effluent water were significantly higher than those in influent water, which means bullfrog farming could increase contaminants into the surroundings. The total PFAS concentrations varied from 2.89 to 162.26 ng/g·dw in sediment. The distribution profile of PFASs in sediment was similar to that of water, with short chain playing a significant role. Total PFASs in bullfrog tissues were 3.36–84.07 ng/g·dw, with the highest values in the digestive system (intestines and stomach). As for one novel PFAS alternative, chlorinated polyfluorinated ether sulfonate (F-53B) was found at high detectable levels in all habitat samples and had a higher value of logarithmic bioaccumulation factors. The estimated dietary intake (EDI) for residents in the study area was generally higher than that in other regions; however, the hazard ratios (HRs) for most detected PFASs were far below the safety threshold value “1.” These results suggest that frequent consumption of these bullfrogs would basically not cause severe health effects on local residents in terms of PFASs.

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“…While PFAS manufacturing began in the 1940s, routine testing of environmental contamination did not begin until the turn of the 21 st century when the toxicity and persistence of these chemicals became public knowledge. Thus, PFAS presence during this gap (1950s-1990s) has been retroactively evaluated using sediments and ice cores (15)(16)(17), but these methods are limited to aquatic and artic ecosystems, respectively, and may disregard atmospheric contributions and regional specificity. The LC-IMS-MS analyses of the archived pine needles in this study identified 29 unique PFAS over five decades in six North Carolina (NC) counties (Table S8).…”

mentioning

confidence: 99%

Utilizing Pine Needles to Temporally and Spatially Profile Per- and Polyfluoroalkyl Substances

Kirkwood

Fleming

Nguyen

et al. 2021

Preprint

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As concerns continue to mount over exposure to per- and polyfluoroalkyl substances (PFAS), novel methods of profiling their presence and modifications are greatly needed as some have known toxic and bioaccumulative characteristics while others have unknown effects. This task however is not simple as over 5000 PFAS of interest have been named by the Environmental Protection Agency and this list continues to grow daily. In this work, we utilized widely available archived and field-sampled pine needles and a novel non-targeted analytical method to evaluate the temporal and spatial presence of numerous PFAS. Over 70 PFAS were detected in the pine needles from this study, providing information from the last six decades related to PFAS exposure, contamination, and reduction.

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Perfluoroalkyl substances in sediments from the Bering Sea to the western Arctic: Source and pathway analysis

Cited by 57 publications

References 70 publications

Environmental Risk Assessment Resulting from Sediment Contamination with Perfluoroalkyl Substances

Environmental Risk Assessment Resulting from Sediment Contamination with Perfluoroalkyl Substances

Occurrence, Profile, and Potential Risks of Novel and Legacy Polyfluoroalkyl Substances in Bullfrogs: Pilot Study in an Intensive Aquaculture Region, China

Utilizing Pine Needles to Temporally and Spatially Profile Per- and Polyfluoroalkyl Substances

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