[Li, Tiantian; Liu, Fan] Chinese Ctr Dis Control & Prevent, Inst Environm Hlth & Related Prod Safety, Beijing, Peoples R China; [Li, Tiantian; Liu, Zhaorong; Bai, Yuhua] Peking Univ, Coll Environm Sci & Engn, Beijing 100871, Peoples R China; [Gao, Yanlin; Wei, Zaihua; Wang, Jing] Beijing Municipal Ctr Dis Prevent & Control, Beijing, Peoples R China; [Kinney, Patrick] Columbia Univ, Mailman Sch Publ Hlth, New York, NY USA; [Kan, Haidong] Fudan Univ, Sch Publ Hlth, Shanghai 200433, Peoples R China; [Cheng, Yanli] Chinese Acad Meteorol Sci, Key Lab Atmospher Chem, Ctr Atmosphere Watch & Serv, Beijing, Peoples R China