State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, 510655, China.
Central and Southern China Municipal Engineering Design & Research Institute Co., Ltd, Haikou, 570100, China.
Environ Pollut. 2021 Oct 15;287:117642. doi: 10.1016/j.envpol.2021.117642. Epub 2021 Jun 23.
Previous studies of perfluorinated alkyl substances (PFASs) in receiving water bodies of typical industrial parks under the low-carbon development mode are scarce. In the present study, 18 PFASs were analyzed in surface water and sediment samples of the inland river basin in Longgang District in 2017. The ΣPFAS concentrations in surface water (drought and rainy periods) and sediment ranged from 15.17 to 948.50 ng/L, 11.56-561.14 ng/L, and 1.07-28.94 ng/g dw, respectively. Perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA) and perfluorobutane sulfonate (PFBS) were the dominant pollutants in surface water, with maximum concentrations of 867.68 ng/L, 288.28 ng/L, and 245.09 ng/L, respectively. Meanwhile, PFOS, perfluoroundecanoic acid (PFUdA), PFBS, and perfluorodecanoic acid (PFDA) were the major PFASs in the sediment samples, with maximum concentrations of 9.83 ng/g dw, 11.86 ng/g dw, 5.30 ng/g dw, and 5.23 ng/g dw, respectively. In addition, PFOA and PFOS resulted from similar sources in sediment and surface water samples (P < 0.05). The risk quotient value (RQ) results showed that the control of PFOS in the treatment of pollutants in the inland river basin of Longgang District deserves more attention.
先前针对典型工业园区低碳发展模式下受纳水体中全氟烷基物质（PFASs）的研究较为匮乏。本研究于 2017 年分析了龙岗区内陆河流域地表水和沉积物样本中的 18 种 PFASs。在枯水期和丰水期，地表水和沉积物中ΣPFASs 浓度范围分别为 15.17-948.50ng/L、11.56-561.14ng/L 和 1.07-28.94ng/g dw。全氟辛烷磺酸（PFOS）、全氟辛酸（PFOA）和全氟丁烷磺酸（PFBS）是地表水中的主要污染物，浓度分别高达 867.68ng/L、288.28ng/L 和 245.09ng/L。与此同时，PFOS、全氟十一烷酸（PFUdA）、PFBS 和全氟癸酸（PFDA）是沉积物中主要的 PFASs，浓度分别高达 9.83ng/g dw、11.86ng/g dw、5.30ng/g dw 和 5.23ng/g dw。此外，在沉积物和地表水样本中，PFOA 和 PFOS 来自于相似的污染源（P<0.05）。风险商数（RQ）结果表明，在处理龙岗区内陆河流域污染物时，应更加关注 PFOS 的控制。
