Legacy and alternative per- and polyfluoroalkyl substances (PFASs) in the West River and North River, south China: Occurrence, fate, spatio-temporal variations and potential sources

Chang-Er Chen, Yuanyuan Yang, Jian‐Liang Zhao, You‐Sheng Liu, Li‐Xin Hu, Beibei Li, Cai-Lin Li, Guang‐Guo Ying