Huang Jia-Hao, Wu Wei, Huang Tian-Yin, Cheng Shu-Qin, Xiang Song, Pang Yan
School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
Huan Jing Ke Xue. 2022 Jul 8;43(7):3562-3574. doi: 10.13227/j.hjkx.202108335.
Through the investigation and detection of the surface water and sediments of Luoma Lake, the structure and occurrence characteristics of PFASs (perlyfluoroalkyl substances) in the two types of media were analyzed, and the principal component analysis method was used to analyze the characteristics of such substances in the surface water. The source was analyzed, and the potential health risks of such substances were evaluated using the risk quotient method. The results showed that a total of 13 PFASs were detected in the surface sediments of Luoma Lake, and one more species was detected in the surface water (PFTeA); (ΣPFASs) in the surface water ranged from 46.09 to 120.34 ng·L, and (ΣPFASs) in sediments ranged from 2.22 to 9.55 ng·g. PFPeA was the major component in surface water, and the mass fraction of PFPeA was 38%. PFBA was the major component in sediment, and the mass fraction of PFPeA was 61%. The multi-media PFASs in Luoma Lake were mainly short-chain substances; the high concentration area of PFASs in the surface water of Luoma Lake was concentrated and distributed at the mouth of the northern rivers. Its concentration showed a decreasing trend from north to south, and the content of PFASs in the sediments showed a decreasing trend from southwest to northeast. The distribution of ΣPFASs, PFBA, and PFOS in the sediments of Luoma Lake and the TOC content in the sediment were related; the principal component analysis showed that the PFASs in the surface water of Luoma Lake were mainly from textile flame retardant, rubber product emulsification, food packaging processes and paper surface treatment industries, the metal electroplating industry, and leather and textile manufacturing industries. PFASs in the surface water of Luoma Lake were at a relatively low health risk level.
通过对骆马湖地表水和沉积物的调查检测，分析了两种介质中全氟烷基物质（PFASs）的结构和赋存特征，采用主成分分析法分析了地表水中此类物质的特征，分析了其来源，并采用风险商数法评估了此类物质的潜在健康风险。结果表明，骆马湖表层沉积物中共检测出13种PFASs，地表水中多检出1种（PFTeA）；地表水中（ΣPFASs）范围为46.09～120.34 ng·L，沉积物中（ΣPFASs）范围为2.22～9.55 ng·g。地表水中主要成分是全氟戊酸（PFPeA），其质量分数为38%。沉积物中主要成分是全氟丁酸（PFBA），其质量分数为61%。骆马湖多介质PFASs主要为短链物质；骆马湖地表水PFASs高浓度区域集中分布在北部河流入湖口处，其浓度自北向南呈递减趋势，沉积物中PFASs含量自西南向东北呈递减趋势。骆马湖沉积物中ΣPFASs、PFBA和全氟辛烷磺酸（PFOS）的分布与沉积物中总有机碳（TOC）含量相关；主成分分析表明，骆马湖地表水中PFASs主要来源于纺织阻燃剂、橡胶制品乳化、食品包装工艺及纸张表面处理行业、金属电镀行业以及皮革和纺织制造业。骆马湖地表水中PFASs的健康风险水平相对较低。
