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| Occurrence of per- and polyfluoroalkyl substances in leachates from landfills and incineration plants |
| GU Meng1, WEI Xiao-xiao1, LIU Hua-zu1, LI Wei1, ZHANG Li-lan1, SHI De-zhi1, ZHANG Peng2, WANG Xiao-ming1 |
1. Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400044, China;
2. Chongqing Municipal Environmental Sanitation Monitoring Center, Chongqing 401121, China |
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Abstract This study sampled and analyzed 6 municipal solid waste (MSW) landfill leachates and 3 raw and treated MSW incineration leachates in southwestern China. The concentrations of 17 target PFAS ranged from 1805 to 43310, 7228 to 16565, and 55 to 185ng/L, respectively. The major PFAS were short-chain and even-chain substances represented by perfluorobutanoic acid (PFBA) and perfluorobutane sulfonic acid (PFBS). Comparison of landfill and incineration leachates in the similar service area revealed that PFAS compositions in both leachates were similar. The PFAS concentrations in raw incineration leachates were higher than that of "old" landfill leachates (operation time:~15a) and similar to "young" landfill leachates (operation time:~2a). These results will provide the PFAS occurrence data important for prevention and control of environmental pollution due to PFAS production and use in southwest China.
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Received: 05 September 2019
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