title: PCDDs/PCDFs and PCBs in water samples from the Three Gorge Reservoir.
abstract: The Three Gorge Reservoir (TGR) is the largest reservoir in China and its water quality is an important health concern, we have determined the concentrations of PCDDs/PCDFs and PCBs in the water samples collected at three seasons: August 2004, January 2005 and August 2005. The results showed that the average WHO-TEQ of total dioxins-like compounds (PCDDs/PCDFs+PCBs) was 0.06558 pg l(-1), ranged from 0.0008 to 0.32439 pg l(-1), which are much lower than other reported water sources. The main dioxins (PCDDs/PCDFs) are hepta- and octa-chlorinated dibenzo-p-dioxins (CDDs) and chlorinated dibenzofurans (CDFs). Since the levels of dioxins may change after the last water-store stage, the present study provides important data to compare the water quality in the TGR in the future.
authors.affiliation: School of Military Preventive Medicine, Third Military Medical University, Chongqing 400038, China.
authors.forename: Ji-an
authors.initials: JA
authors.lastname: Chen
authors.forename: Jiaohua
authors.initials: J
authors.lastname: Luo
authors.forename: Zhiqun
authors.initials: Z
authors.lastname: Qiu
authors.forename: Chuan
authors.initials: C
authors.lastname: Xu
authors.forename: Yujing
authors.initials: Y
authors.lastname: Huang
authors.forename: Yi-he
authors.initials: YH
authors.lastname: Jin
authors.forename: Normitsu
authors.initials: N
authors.lastname: Saito
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Yoshida
authors.forename: Keiichi
authors.initials: K
authors.lastname: Ozawa
authors.forename: Jia
authors.initials: J
authors.lastname: Cao
authors.forename: Weiqun
authors.initials: W
authors.lastname: Shu
mesh_terms: D001572:Benzofurans / Q000032:analysis*; D002681:China; D000072338:Dibenzofurans, Polychlorinated; D004784:Environmental Monitoring; D005843:Geography; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014881:Water Supply / Q000032:analysis
chemical_list: D001572:Benzofurans; D000072338:Dibenzofurans, Polychlorinated; D000072317:Polychlorinated Dibenzodioxins; D014874:Water Pollutants, Chemical; D011078:Polychlorinated Biphenyls