Distribution and bioaccumulation characteristics of emerging and legacy perand polyfluoroalkyl substances (PFAS) in a typical subtropical estuary-bay-offshore ecosystem
文献类型：期刊论文
| 作者 | Tian, Mi4; Liao, Riquan3; Dou, Wenke2,4; Zhang, Jian2,4; Dong, Fengfeng1; Pan, Yitao1; Tang, Jianhui3,4 |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2026-05-15 |
| 卷号 | 397页码:10 |
| 关键词 | PFESAs Partitioning behavior Bioaccumulation Trophic transfer Subtropical bay |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2026.127931 |
| 通讯作者 | Tang, Jianhui(jhtang@yic.ac.cn) |
| 英文摘要 | As replacements for legacy per- and polyfluoroalkyl substances (PFAS), perfluoroalkyl ether carboxylic and sulfonic acids (PFECAs) are increasingly applied and consequently detected in diverse environmental matrices. Yet, their occurrence and environmental behaviors in subtropical estuary-bay systems remain poorly documented. Here, we conducted a comprehensive investigation of 14 PFECAs and 22 legacy PFAS in surface seawater (N = 77), sediments (N = 29) and biota (N = 173) across a representative subtropical estuary-bayoffshore continuum. Overall, legacy PFAS dominated in seawater and biota, whereas sediments contained comparable levels of emerging and legacy PFAS owing to the elevated abundance of hexafluoropropylene oxide dimer acid (HFPO-DA). Concentrations of & sum;PFAS ranged from 1.74 to 30.91 ng/L in seawater and 0.52 to 7.08 ng/g dw in sediments, indicating a relatively low contamination status compared with other Chinese coastal bays. Partitioning behavior differed substantially between chemical classes: the Kd values of hexafluoropropylene oxide derivatives (HFPOs) displayed carbon-number relationships distinct from those of perfluoroalkyl carboxylic acids (PFCAs). In biota, & sum;PFAS concentrations varied from 2.22 to 65.61 ng/g dw, with perfluoro-(3,5-dioxahexanoic) acid (PFO2HxA) showing clear bioaccumulation and biomagnification potential. Notably, the relationships between bioconcentration factors of PFECAs and carbon chain length/ether oxygen content diverged from trends previously reported for Laizhou Bay, underscoring region-specific bioaccumulation behaviors. The results suggested that local residents were unlikely to experience significant exposure to PFOA or PFOS through seafood consumption. However, potential health risks associated with PFECAs remain uncertain, emphasizing the need for further evaluation of their toxicological effects. |
| WOS关键词 | DRINKING-WATER CONTAMINANTS ; ETHER SULFONIC-ACIDS ; MARINE FOOD-WEB ; PERFLUOROALKYL SUBSTANCES ; TROPHIC TRANSFER ; PERFLUORINATED COMPOUNDS ; SEDIMENT ; SOIL ; PHARMACEUTICALS ; POLLUTION |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001714283000001 |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program of China ; Key R&D Program of Shandong Province, China ; Marine Science Program for Guangxi First-Class Discipline, Beibu Gulf University |
| 源URL | [http://ir.yic.ac.cn/handle/133337/42308]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 通讯作者 | Tang, Jianhui |
| 作者单位 | 1.Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Key Lab Environm Hlth Impact Assessment Emerging C, Minist Ecol & Environm, Shanghai 200240, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Beibu Gulf Univ, Coll Marine Sci, Guangxi Key Lab Marine Environm Change & Disaster, Pinglu Canal & Beibu Gulf Coastal Ecosyst Observat, Qinzhou 535011, Peoples R China 4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Key Lab Coastal Zone Environm Proc & Ecol, Yantai 264003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Mi,Liao, Riquan,Dou, Wenke,et al. Distribution and bioaccumulation characteristics of emerging and legacy perand polyfluoroalkyl substances (PFAS) in a typical subtropical estuary-bay-offshore ecosystem[J]. ENVIRONMENTAL POLLUTION,2026,397:10. |
| APA | Tian, Mi.,Liao, Riquan.,Dou, Wenke.,Zhang, Jian.,Dong, Fengfeng.,...&Tang, Jianhui.(2026).Distribution and bioaccumulation characteristics of emerging and legacy perand polyfluoroalkyl substances (PFAS) in a typical subtropical estuary-bay-offshore ecosystem.ENVIRONMENTAL POLLUTION,397,10. |
| MLA | Tian, Mi,et al."Distribution and bioaccumulation characteristics of emerging and legacy perand polyfluoroalkyl substances (PFAS) in a typical subtropical estuary-bay-offshore ecosystem".ENVIRONMENTAL POLLUTION 397(2026):10. |
入库方式： OAI收割
来源：烟台海岸带研究所
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