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Yang, Lili; Jin, Fen; Liu, Guorui; Xu, Yang; Zheng, Minghui; Li, Cui; Yang, Yuanping . (2019). Levels and characteristics of polychlorinated biphenyls in surface sediments of the Chaobai river, a source of drinking water for Beijing, China. Ecotoxicology and Environmental Safety, (), 109922–. doi:10.1016/j.ecoenv.2019.109922 
10.1016/j.ecoenv.2019.109922