High contamination, bioaccumulation and risk assessment of perfluoroalkyl substances in multiple environmental media at the Baiyangdian Lake - Liu, Jie; Zhao, Xingru; Liu, Yan; Qiao, Xiaocui; Wang, Xing; Ma, Mengyu; Jin, Xiaoling; Liu, Chengyou; Zheng, Binghui; Shen, Jinshan; Guo, Rui (Ecotoxicology and Environmental Safety, 2019)