title: Organohalogen contamination in passerine birds from three metropolises in China: geographical variation and its implication for anthropogenic effects on urban environments.
abstract: Contamination of organohalogen pollutants (OHPs), including dichlorodiphenyl trichloroethane and its metabolites (DDTs), polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), decabromodiphenylethane (DBDPE), hexabromocyclododecanes (HBCDs), and dechlorane plus (DP) in three metropolises of China, Beijing, Wuhan, and Guangzhou, and a reference rural site were determined using terrestrial residential passerine species as bioindicator. DDTs dominated in Wuhan whereas flame retardants dominated in Guangzhou and Beijing. No geographical variation was found for PCB levels but it exhibited different homologue profiles among different sites which could be attributed to different dietary sources of birds. Industry characteristics of the sampling location contributed to the geographical differences in the occurrence and contamination profile of OHPs. The transformation of traditional agriculture characterized contamination profiles to industry characterized profiles in Beijing and Guangzhou implicates significantly environmental concern on the flame retardants contamination in non-hot-spot regions of China.
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; Center for Environmental Health Research, South China Institute of Environmental Sciences, The Ministry of Environmental Protection of PRC, Guangzhou 510655, China.
authors.forename: Le-Huan
authors.initials: LH
authors.lastname: Yu
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China. Electronic address: luoxiaoj@gig.ac.cn.
authors.forename: Xiao-Jun
authors.initials: XJ
authors.lastname: Luo
authors.affiliation: College of Chemistry and Chemical Engineering, Hubei University, Wuhan 200433, China.
authors.forename: Hong-Ying
authors.initials: HY
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; University of Chinese Academy of Sciences, Beijing 100039, China.
authors.forename: Yan-Hong
authors.initials: YH
authors.lastname: Zeng
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; University of Chinese Academy of Sciences, Beijing 100039, China.
authors.forename: Xiao-Bo
authors.initials: XB
authors.lastname: Zheng
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Jiang-Ping
authors.initials: JP
authors.lastname: Wu
authors.affiliation: Center for Environmental Health Research, South China Institute of Environmental Sciences, The Ministry of Environmental Protection of PRC, Guangzhou 510655, China.
authors.forename: Yun-Jiang
authors.initials: YJ
authors.lastname: Yu
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Bi-Xian
authors.initials: BX
authors.lastname: Mai
mesh_terms: D000818:Animals; D002681:China; D002947:Cities / Q000706:statistics & numerical data; D003634:DDT / Q000378:metabolism; D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000378:metabolism*; D005411:Flame Retardants / Q000378:metabolism; D055768:Halogenated Diphenyl Ethers / Q000378:metabolism; D006842:Hydrocarbons, Brominated / Q000378:metabolism; D006843:Hydrocarbons, Chlorinated / Q000378:metabolism*; D046109:Passeriformes / Q000378:metabolism*; D011078:Polychlorinated Biphenyls / Q000378:metabolism
chemical_list: D004785:Environmental Pollutants; D005411:Flame Retardants; D055768:Halogenated Diphenyl Ethers; D006842:Hydrocarbons, Brominated; D006843:Hydrocarbons, Chlorinated; C089796:hexabromocyclododecane; D003634:DDT; D011078:Polychlorinated Biphenyls
keywords: China; Contamination profile; Organohalogen pollutants; Passerine birds; Urban regions