Unveiling precursor-derived PFAS burdens in landfill leachate: TOP assay reveals ultrashort-chain PFAS and DTRO removal limitations across 11 Chinese cities - Ying Zhang; Nemin Luo; Bin Yan; Lei Wang; Haolong Zhang; Mingyuan Lin; Ting Fang; Zhenchang Zhong; Huiyan Cheng; Yan Lin (Journal of Environmental Sciences, 2026)