Occurrence, Sources, and Prioritization of Per- and Polyfluoroalkyl Substances (PFASs) in Drinking Water from Yangtze River Delta, China: Focusing on Emerging PFASs DOI Creative Commons

Zixin Qian,

Chao Feng, Yuhang Chen

и другие.

Molecules, Год журнала: 2025, Номер 30(11), С. 2313 - 2313

Опубликована: Май 25, 2025

As regulations ban legacy PFASs, many emerging PFASs are being developed, leading to their release into the aquatic environment and drinking water. However, research studies on these in water limited, current standards only cover a few leaving unregulated toxicity unknown. Therefore, machine learning-based suspect screening combined with target was employed comprehensively identify quantify both novel from Yangtze River Delta, potential sources of contamination were determined through pollutant profile analysis. A total 30 identified, including 16 14 categorized 11 classes. Quantitative semi-quantitative analyses revealed that maximum concentrations ranged <LOQ (limit quantification) 48.92 ng/L. Notably, PFPeA (48.92 ng/L), perfluorobutanoic acid (PFBA, 44.83 perfluorooctanoic (PFOA, 37.72 perfluorobutanesulfonic (PFBS, 26.77 bis(trifluoromethanesulfonyl)imide (HNTf2, 15.02 ng/L) exhibited higher compared other PFASs. The analysis suggested Delta’s more likely originate pollution upper middle reaches rather than local industrial emissions. Then, identified prioritized by integrating PBT (persistence, bioaccumulation, toxicity) properties environmental exposure data. In prioritization risk assessment process, ten high-concern had Risk Indexes (RIs) those ref-PFOA ref-PFOS, eight two Delta originates surface lower River, which accumulates pollutants its reaches, affecting health over 20 million people. Our findings indicated presence region’s demonstrated conceptual models for chemical information prediction assessment. Although levels relatively low, still dominate. Further is needed identify, monitor, assess risks

Язык: Английский

A Review of the Occurrence and Distribution of Per- and Polyfluoroalkyl Substances (PFAS) in Human Organs and Fetal Tissues DOI Creative Commons
José L. Domingo

Environmental Research, Год журнала: 2025, Номер unknown, С. 121181 - 121181

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

1
The complex effect of dissolved organic carbon on desorption of per- and poly-fluoroalkyl substances from soil under alkaline conditions DOI Creative Commons
Shervin Kabiri, Ehsan Tavakkoli, Divina A. Navarro

и другие.

Environmental Pollution, Год журнала: 2024, Номер 356, С. 124234 - 124234

Опубликована: Май 28, 2024

Per- and poly-fluoroalkyl substances (PFASs) are contaminants of emerging concern, yet the understanding factors that control their leaching release from contaminated soils remains limited. This study aimed to investigate impact dissolved organic carbon (DOC) on PFASs-specifically, perfluorohexane sulfonate (PFHxS), perfluorooctane (PFOS), perfluorooctanoic acid (PFOA)from by aqueous film forming foam (AFFF). Batch experiments were conducted AFFF-contaminated under alkaline solution conditions (pH 9.5, 10.5, 12) as it enhances both PFAS DOC. Leaching PFOS was significantly increased conditions. Although generally with pH, appeared be more retained very pH used in this study. At same DOC less Ca(OH)

Язык: Английский

Процитировано

6
Occurrence, Sources, and Prioritization of Per- and Polyfluoroalkyl Substances (PFASs) in Drinking Water from Yangtze River Delta, China: Focusing on Emerging PFASs DOI Creative Commons

Zixin Qian,

Chao Feng, Yuhang Chen

и другие.

Molecules, Год журнала: 2025, Номер 30(11), С. 2313 - 2313

Опубликована: Май 25, 2025

As regulations ban legacy PFASs, many emerging PFASs are being developed, leading to their release into the aquatic environment and drinking water. However, research studies on these in water limited, current standards only cover a few leaving unregulated toxicity unknown. Therefore, machine learning-based suspect screening combined with target was employed comprehensively identify quantify both novel from Yangtze River Delta, potential sources of contamination were determined through pollutant profile analysis. A total 30 identified, including 16 14 categorized 11 classes. Quantitative semi-quantitative analyses revealed that maximum concentrations ranged <LOQ (limit quantification) 48.92 ng/L. Notably, PFPeA (48.92 ng/L), perfluorobutanoic acid (PFBA, 44.83 perfluorooctanoic (PFOA, 37.72 perfluorobutanesulfonic (PFBS, 26.77 bis(trifluoromethanesulfonyl)imide (HNTf2, 15.02 ng/L) exhibited higher compared other PFASs. The analysis suggested Delta’s more likely originate pollution upper middle reaches rather than local industrial emissions. Then, identified prioritized by integrating PBT (persistence, bioaccumulation, toxicity) properties environmental exposure data. In prioritization risk assessment process, ten high-concern had Risk Indexes (RIs) those ref-PFOA ref-PFOS, eight two Delta originates surface lower River, which accumulates pollutants its reaches, affecting health over 20 million people. Our findings indicated presence region’s demonstrated conceptual models for chemical information prediction assessment. Although levels relatively low, still dominate. Further is needed identify, monitor, assess risks

Язык: Английский

Процитировано

0