Scholarlink

<p>Per- and polyfluoroalkyl substances (PFAS) have garnered increasing attention from regulatory authorities and the public because of their widespread presence in global water systems. However, data on PFAS in the aquatic environment of northwestern China, including Ningxia, are scarce. Surface water, sediment, and groundwater samples were analyzed to investigate the occurrence, spatiotemporal distribution, source apportionment, and human health risks associated with PFAS in the water environment of this region. In surface water, concentrations of the 19 PFAS ranged from 3.28 to 234.86 ng/L in the dry season and from 1.31 to 54.55 ng/L in the wet season. Eight PFAS were detected in the sediment and 17 in the groundwater. Their total concentrations ranged from Not Detected (ND) to 7.001 ng/g in sediment and from ND to 34.17 ng/L in groundwater. Positive Matrix Factorization analysis indicated that wastewater discharges from textile mills and other fluorine-containing manufacturers may be the primary source of PFAS in both surface and groundwater. The data from the human health risk assessment indicated that perfluorodecanoic acid, perfluorooctanoic acid, and perfluorooctane sulfonate have significant adverse effects on human health in Ningxia, according to the latest health advisory issued by the Environmental Protection Agency.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Occurrence, distribution, sources and health risks of per- and polyfluoroalkyl substances (PFAS) in water environment of Ningxia, northwestern China

  • 期刊论文

  • 发表日期：

    2026年1月30日

查看全文
  • Menglu Wang,
  • Wenchao Li,
  • Cheng Ma,
  • Yijing Zhang,
  • Li Gao,
  • Dengchao Liu,
  • Qian Li

摘要

Per- and polyfluoroalkyl substances (PFAS) have garnered increasing attention from regulatory authorities and the public because of their widespread presence in global water systems. However, data on PFAS in the aquatic environment of northwestern China, including Ningxia, are scarce. Surface water, sediment, and groundwater samples were analyzed to investigate the occurrence, spatiotemporal distribution, source apportionment, and human health risks associated with PFAS in the water environment of this region. In surface water, concentrations of the 19 PFAS ranged from 3.28 to 234.86 ng/L in the dry season and from 1.31 to 54.55 ng/L in the wet season. Eight PFAS were detected in the sediment and 17 in the groundwater. Their total concentrations ranged from Not Detected (ND) to 7.001 ng/g in sediment and from ND to 34.17 ng/L in groundwater. Positive Matrix Factorization analysis indicated that wastewater discharges from textile mills and other fluorine-containing manufacturers may be the primary source of PFAS in both surface and groundwater. The data from the human health risk assessment indicated that perfluorodecanoic acid, perfluorooctanoic acid, and perfluorooctane sulfonate have significant adverse effects on human health in Ningxia, according to the latest health advisory issued by the Environmental Protection Agency.