title: Persistent halogenated compounds in captive Chinese alligators (Alligator sinensis) from China.
abstract: While a number of studies have reported residual levels of persistent halogenated compounds (PHCs) in crocodilia, there is still a dearth of information on the Chinese alligator, a critically endangered crocodilian species. In the present study, several PHCs, including polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCBs), and dichlorodiphenyltrichloroethane and its metabolites (DDTs), were detected in the adult tissues, neonates, and eggs of captive Chinese alligators from China. The concentrations of ΣPBDEs, ΣPCBs, and ΣDDTs in Chinese alligators ranged from 0.11 to 16.1, 1.12 to 22.2, and 6.03 to 1020ngg(-1) wet weight, respectively, with higher levels of ΣPCBs and ΣDDTs in the neonates and eggs than in muscle tissues. The ΣDDT residues in the studied Chinese alligators were at the high end of reported ranges from crocodilia around the world, and some results exceeded levels known to cause a female-biased sex ratio in crocodilians.
authors.affiliation: College of Environmental Science and Engineering, Anhui Normal University, Wuhu 241003, China.
authors.forename: Ting
authors.initials: T
authors.lastname: Wu
authors.affiliation: College of Environmental Science and Engineering, Anhui Normal University, Wuhu 241003, China.
authors.forename: Bing
authors.initials: B
authors.lastname: Hong
authors.affiliation: College of Environmental Science and Engineering, Anhui Normal University, Wuhu 241003, China. Electronic address: wuxb@mail.ahnu.edu.cn.
authors.forename: Xiaobing
authors.initials: X
authors.lastname: Wu
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China. Electronic address: jpwu@gig.ac.cn.
authors.forename: Jiangping
authors.initials: J
authors.lastname: Wu
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Xinming
authors.initials: X
authors.lastname: Wang
authors.affiliation: College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
authors.forename: Zhigang
authors.initials: Z
authors.lastname: Yi
authors.affiliation: College of Environmental Science and Engineering, Anhui Normal University, Wuhu 241003, China.
authors.forename: Juan
authors.initials: J
authors.lastname: Zhao
authors.affiliation: College of Environmental Science and Engineering, Anhui Normal University, Wuhu 241003, China.
authors.forename: Miao
authors.initials: M
authors.lastname: Zhan
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Bixian
authors.initials: B
authors.lastname: Mai
mesh_terms: D000489:Alligators and Crocodiles / Q000378:metabolism; D000818:Animals; D002681:China; D003634:DDT / Q000032:analysis / Q000378:metabolism; D004531:Eggs / Q000032:analysis; D004785:Environmental Pollutants / Q000032:analysis* / Q000378:metabolism; D005260:Female; D055768:Halogenated Diphenyl Ethers / Q000032:analysis* / Q000378:metabolism; D006843:Hydrocarbons, Chlorinated / Q000032:analysis* / Q000378:metabolism; D008297:Male; D011078:Polychlorinated Biphenyls / Q000032:analysis* / Q000378:metabolism
chemical_list: D004785:Environmental Pollutants; D055768:Halogenated Diphenyl Ethers; D006843:Hydrocarbons, Chlorinated; D003634:DDT; D011078:Polychlorinated Biphenyls
keywords: Chinese alligator; DDTs; PBDEs; PCBs; Reptile