Occurrence and Risk Assessment of Perfluorooctanoate (PFOA) and Perfluorooctane Sulfonate (PFOS) in Surface Water, Groundwater and Sediments of the Jin River Basin, Southeastern China

Li, Yasong; Liu, Yaci; Shi, Guowei; Hao, Qichen; Wu, Lin

doi:10.1007/s00128-021-03435-w

Cited by 22 publications

(9 citation statements)

References 28 publications

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“…PFOA was chosen as a representative PFAS chemical in this study because it has been broadly identified in different water sources across the world (Li et al, 2022; Podder et al, 2021). Concentrations of PFOA in surface or groundwater vary widely, spanning multiple orders of magnitude (Zareitalabad et al, 2013).…”

Section: Methodsmentioning

confidence: 99%

Enhanced coagulation coupled with cyclic IX adsorption–ARP regeneration for removal of PFOA in drinking water treatment

Cui,

Deng

2023

Water Environment Research

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Laboratory investigations were conducted to demonstrate a potentially transformative, cost‐efficient per‐ and polyfluoroalkyl substances (PFAS) treatment approach, consisting of enhanced coagulation and repeated ion exchange (IX) – advanced reduction process (ARP) for concurrent PFAS removal and IX resin regeneration. Enhanced alum coagulation at the optimal conditions (pH 6.0, 60 mg/L alum) could preferentially remove high molecular‐weight, hydrophobic natural organic matter (NOM) from 5.0 to ~1.2 mg/L DOC in simulated natural water. This facilitated subsequent IX adsorption of perfluorooctanoic acid (PFOA, a model PFAS in this study) (20 μg/L) using IRA67 resin by minimizing the competition of NOM for functional sites on the resin. The PFOA/NOM‐laden resin was then treated by ARP, generating hydrated electrons (eaq‐) that effectively degraded PFOA. The combined IX‐ARP regeneration process was applied over six cycles to treat PFOA in pre‐coagulated simulated natural water, nearly doubling the PFOA removal compared to the control group without ARP regeneration. This study underscores the potential of enhanced coagulation coupled with cyclic IX‐ARP regeneration as a promising, cost‐effective solution for addressing PFOA pollution in water.

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Section: Methodsmentioning

confidence: 99%

Enhanced coagulation coupled with cyclic IX adsorption–ARP regeneration for removal of PFOA in drinking water treatment

Cui,

Deng

2023

Water Environment Research

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“…PFAS have been shown to cause endocrine disruption, reproductive and developmental toxicity, disruptions in lipid homeostasis, and oxidative stress in mammals and fish [ 6 , 7 ]. Despite production bans, PFAS, particularly perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA), are still ubiquitously found in most environments around the world [ 8 , 9 , 10 ]. Aqueous film-forming foams (AFFFs), which have been shown to be toxic to several aquatic species [ 11 ], are a major source of PFAS pollution in the environment, with a significant proportion coming from legacy and ongoing use on military bases and aircraft carriers [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Mixture Effects of Per- and Polyfluoroalkyl Substances on Embryonic and Larval Sheepshead Minnows (Cyprinodon variegatus)

Tanabe,

Key,

Chung

et al. 2024

Toxics

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Per- and polyfluoroalkyl substances (PFAS) are ubiquitous and persistent environmental contaminants originating from many everyday products. Perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) are two PFAS that are commonly found at high concentrations in aquatic environments. Both chemicals have previously been shown to be toxic to fish, as well as having complex and largely uncharacterized mixture effects. However, limited information is available on marine and estuarine species. In this study, embryonic and larval sheepshead minnows (Cyprinodon variegatus) were exposed to several PFAS mixtures to assess lethal and sublethal effects. PFOS alone was acutely toxic to larvae, with a 96 h LC50 of 1.97 mg/L (1.64–2.16). PFOS + PFOA resulted in a larval LC50 of 3.10 (2.62–3.79) mg/L, suggesting an antagonistic effect. These observations were supported by significant reductions in malondialdehyde (105% ± 3.25) and increases in reduced glutathione concentrations (43.8% ± 1.78) in PFOS + PFOA exposures compared to PFOS-only treatments, indicating reduced oxidative stress. While PFOA reduced PFOS-induced mortality (97.0% ± 3.03), perfluorohexanoic acid (PFHxA) and perfluorobutanoic acid (PFBA) did not. PFOS alone did not affect expression of peroxisome proliferator-activated receptor alpha (pparα) but significantly upregulated apolipoprotein A4 (apoa4) (112.4% ± 17.8), a downstream product of pparα, while none of the other individually tested PFAS affected apoa4 expression. These findings suggest that there are antagonistic interactions between PFOA and PFOS that may reduce mixture toxicity in larval sheepshead minnows through reduced oxidative stress. Elucidating mechanisms of toxicity and interactions between PFAS will aid environmental regulation and management of these ubiquitous pollutants.

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“…They concluded that significant PFAS sources include airport operations and fire training sites [ 58 , 59 , 60 ]. The detection of PFOA and PFOS has been reported in the literature [ 61 , 62 , 63 ], but most recently, other types of PFAS such as fluoroethers, GenX, perfluorohexane sulfonic acid (PFHxS), PFNA, perfluorobutyric acid (PFBA) [ 64 , 65 , 66 ]. For example, 2,3,3,3,-tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoate (GenX) and other PFAS were detected in the Cape Fear River located around a PFAS chemical manufacturing industry in Fayetteville, North Carolina [ 67 ], and about 837 private wells within a 5 mile radius of the industry revealed approximately 25% (207) of the wells were contaminated with GenX [ 68 ].…”

Section: Introductionmentioning

confidence: 99%

Exploring the Potential Link between PFAS Exposure and Endometrial Cancer: A Review of Environmental and Sociodemographic Factors

Ayodele,

Obeng-Gyasi

2024

Cancers

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This exploratory narrative review paper delves into the intricate interplay between per- and polyfluoroalkyl substances (PFAS) exposure, sociodemographic factors, and the influence of stressors in the context of endometrial cancer. PFAS, ubiquitous environmental contaminants notorious for their persistence in the ecosystem, have garnered attention for their potential to disrupt endocrine systems and provoke immune responses. We comprehensively examine the various sources of PFAS exposure, encompassing household items, water, air, and soil, thus shedding light on the multifaceted routes through which individuals encounter these compounds. Furthermore, we explore the influence of sociodemographic factors, such as income, education, occupation, ethnicity/race, and geographical location and their relationship to endometrial cancer risk. We also investigated the role of stress on PFAS exposure and endometrial cancer risk. The results revealed a significant impact of sociodemographic factors on both PFAS levels and endometrial cancer risk. Stress emerged as a notable contributing factor influencing PFAS exposure and the development of endometrial cancer, further emphasizing the importance of stress management practices for overall well-being. By synthesizing evidence from diverse fields, this review underscores the need for interdisciplinary research and targeted interventions to comprehensively address the complex relationship between PFAS, sociodemographic factors, stressors, and endometrial cancer.

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Occurrence and Risk Assessment of Perfluorooctanoate (PFOA) and Perfluorooctane Sulfonate (PFOS) in Surface Water, Groundwater and Sediments of the Jin River Basin, Southeastern China

Cited by 22 publications

References 28 publications

Enhanced coagulation coupled with cyclic IX adsorption–ARP regeneration for removal of PFOA in drinking water treatment

Enhanced coagulation coupled with cyclic IX adsorption–ARP regeneration for removal of PFOA in drinking water treatment

Mixture Effects of Per- and Polyfluoroalkyl Substances on Embryonic and Larval Sheepshead Minnows (Cyprinodon variegatus)

Exploring the Potential Link between PFAS Exposure and Endometrial Cancer: A Review of Environmental and Sociodemographic Factors

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