文献类型： 外文期刊

作者： Tang, Wang-Qing ¹ ; Wang, Tuan-Tuan ² ; Miao, Jiang-Wei ² ; Tan, Hua-Dong ⁴ ; Zhang, Hong-Jin ¹ ; Guo, Tuan-Qi ¹ ; Chen, Zhong-Bing ⁵ ; Wu, Chun-Yuan ⁴ ; Mo, Ling ⁶ ; Mai, Bi-Xian ⁷ ; Wang, Sai ¹ ;

作者机构： 1.Hainan Univ, State Key Lab Marine Resource Utilizat South China, Haikou 570228, Peoples R China

2.Hainan Univ, Ctr Ecoenvironm Restorat Engn Hainan Prov, Haikou 570228, Peoples R China

3.Hainan Univ, Sch Ecol, Haikou 570228, Peoples R China

4.Chinese Acad Trop Agr Sci, Inst Environm & Plant Protect, Haikou 571101, Peoples R China

5.Czech Univ Life Sci Prague, Fac Environm Sci, Dept Appl Ecol, Prague 16500, Czech Republic

6.Hainan Res Acad Environm Sci, Haikou 571126, Peoples R China

7.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China

关键词： PFASs; Hainan Island; Occurrence; Risk assessment; Rivers

期刊名称：ENVIRONMENTAL RESEARCH （ 影响因子：7.7； 五年影响因子：7.7 ）

ISSN： 0013-9351

年卷期： 2025 年 266 卷

页码：

收录情况： SCI

摘要： Per- and polyfluoroalkyl substances (PFASs) have attracted considerable attention because of their toxicity, persistence and bioaccumulation potential. With the construction of the Hainan Free Trade Port and the rapid development of economy, environmental pollution on Hainan Island is becoming increasingly prominent. PFASs have been detected in the seawater and sediments of mangrove ecosystems on Hainan Island. As the receiving water of wastewater treatment plants (WWTPs) and industrial wastewater, rivers are inevitably contaminated by PFASs. However, few studies have focused on PFAS pollution in three large rivers (the Nandu, Changhua, and Wanquan rivers) on Hainan Island. In the present study, the pollution status, potential sources, and ecological risks of PFASs in these three major rivers were explored. Perfluorobutanonic acid (PFBA) (48.7%) was found to be the major PFASs in the surface waters, and perfluoroundecanoic acid (PFUnDA) (19.7%) was the major PFASs in the sediments of the three major rivers. The concentrations of & sum;PFASs in the upper-midstream region were low due to minimal human influence and increased in the middle-lower reaches with increasing industrial activity and urbanization, whereas decreased at downstream sites near estuaries where river water was diluted with seawater. WWTP effluent, industrial wastewater discharge, the application and discharge of aqueous firefighting foam, storm runoff and landfill leachate were the major sources of PFASs in the three major rivers. In surface water, perfluorooctanoic acid (PFOA), perfluorooctane sulfonamide (PFOSA) and perfluorooctadecanoic acid (PFODA) posed low-moderate risks at 5.71-85.6% of the sampling sites. PFASs in the sediment posed no ecological risk. This study provides key data regarding the pollution status and potential sources of PFASs in large rivers on subtropical islands.