Tan Ke-Yan, Lu Guo-Hui, Piao Hai-Tao, Chen Shu, Jiao Xing-Chun, Gai Nan, Yamazaki Eriko, Yamashita Nobuyoshi, Pan Jing, Yang Yong-Liang
National Research Center for Geo-analysis (NRCGA), 26 Baiwanzhuang Avenue, Xicheng, Beijing, 100037, China.
National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Ibaraki, Tsukuba, 305-8569, Japan.
Bull Environ Contam Toxicol. 2017 Aug;99(2):224-231. doi: 10.1007/s00128-017-2109-3. Epub 2017 May 20.
The contamination status of perfluoroalkyl substances (PFASs) were investigated in 64 tapwater samples collected from 17 cities and 45 surface water samples from adjacent areas in the eastern China. The total PFAS concentrations in tapwater ranged from 1.4 to 175 ng/L; relatively higher PFAS levels were observed in samples collected from the Yangtze River Delta region, which was similar to the geographical distribution pattern of PFAS levels observed in rivers and lakes. The highest total PFASs in tapwater was found in Changshu, where several fluorine-related industries are located, whereas the lowest was observed in Beijing. Significant positive correlations between PFAS compositions in tap water sample and their source waters were noted. Several industries such as paper, textile, and leather industries may contribute to the contamination of PFASs in tapwater.
对中国东部17个城市采集的64份自来水样本以及相邻地区的45份地表水样本中的全氟烷基物质（PFASs）污染状况进行了调查。自来水中PFAS的总浓度范围为1.4至175纳克/升；在长江三角洲地区采集的样本中观察到相对较高的PFAS水平，这与在河流和湖泊中观察到的PFAS水平的地理分布模式相似。自来水中PFAS总量最高的是常熟，该地有几家氟相关产业，而最低的是北京。自来水样本中的PFAS成分与其水源之间存在显著正相关。造纸、纺织和皮革等几个行业可能是自来水中PFAS污染的来源。
