Liu Yan, Li Xue, Wang Xing, Qiao Xiaocui, Hao Shuran, Lu Jingrang, Duan Xiaodi, Dionysiou Dionysios D, Zheng Binghui
National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing 10012, China.
State Environmental Protection Key Laboratory of Drinking Water Source Protection, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
Water (Basel). 2019 Nov 6;11(11):1-2316. doi: 10.3390/w11112316.
Over the past decade, concerns about perfluoroalkyl substances (PFAS) have increased rapidly among the scientific community due to their global distribution and persistence in various environmental matrices. The occurrences of 10 PFAS in groundwater in the alluvial-pluvial plain of Hutuo River (APPHR) in the North China Plain (NCP) were analyzed via UPLC-MS/MS and solid phase extraction. Total PFAS concentrations ranged from 0.56 ng/L to 13.34 ng/L, with an average value of 2.35 ng/L. Perfluorooctanoic acid (PFOA) and perfluorohexanoic acid (PFHxA) were dominant PFAS contaminants with high detection rates of 98.39% and 95.16%, respectively, and PFOA was the main pollutant with a mean concentration of 0.65 ng/L. The hydrogeological conditions have an important influence on the concentrations of PFAS in groundwater. Comparatively, the concentration of PFAS in groundwater in the study area is not very high, but it reflects that the groundwater in this region is affected by industrial sources to some extent. Local government should pay more attention on industrial pollution control and groundwater protection in this area.
在过去十年中,由于全氟烷基物质(PFAS)在全球的分布以及在各种环境介质中的持久性,科学界对其的关注迅速增加。通过超高效液相色谱-串联质谱法(UPLC-MS/MS)和固相萃取法分析了华北平原滹沱河冲洪积平原(APPHR)地下水中10种PFAS的出现情况。PFAS总浓度范围为0.56 ng/L至13.34 ng/L,平均值为2.35 ng/L。全氟辛酸(PFOA)和全氟己酸(PFHxA)是主要的PFAS污染物,检出率分别高达98.39%和95.16%,且PFOA是主要污染物,平均浓度为0.65 ng/L。水文地质条件对地下水中PFAS的浓度有重要影响。相比之下,研究区域地下水中PFAS的浓度不是很高,但这反映出该地区的地下水在一定程度上受到工业源的影响。当地政府应更加关注该地区的工业污染控制和地下水保护。