title: Polybrominated diphenyl ethers and decabromodiphenylethane in sediments from twelve lakes in China.
abstract: Sediment cores from 12 Chinese lakes were analyzed to investigate the historical inputs of polybrominated diphenyl ethers (PBDEs) and decabromodiphenylethane (DBDPE) during the past few decades. Concentrations of ΣPBDE(1) (sum of tri- to hepta-BDEs), ΣPBDE(2) (sum of nona- to deca-BDEs) and DBDPE in the surface sediments were 0.02-0.29 ng g(-1), 0.46-46.6 ng g(-1) and 1.02-3.64 ng g(-1), respectively. The temporal trends of PBDEs and DBDPE followed a general increase from the bottom to the surface. The calculated fluxes for ΣPBDE(1), ΣPBDE(2) and DBDPE were 0.001-0.09, 0.03-4.24, and 0.05-0.31 ng cm(-2) yr(-1), and the inventories were 0.09-7.86, 0.91-461, and 3.83-24.6 ng cm(-2), respectively. The urbanization and industrialization are highly related to the contamination of PBDEs and DBDPE in sediments. The DBDPE input in recent years was still lower than ΣPBDE(2) but the temporal trends indicated that the contamination would increase with the increasing usage of DBDPE in the future.
authors.affiliation: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, China. wufengchang@vip.skleg.cn
authors.forename: Fengchang
authors.initials: F
authors.lastname: Wu
authors.forename: Jianyang
authors.initials: J
authors.lastname: Guo
authors.forename: Hong
authors.initials: H
authors.lastname: Chang
authors.forename: Haiqing
authors.initials: H
authors.lastname: Liao
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Zhao
authors.forename: Bixian
authors.initials: B
authors.lastname: Mai
authors.forename: Baoshan
authors.initials: B
authors.lastname: Xing
mesh_terms: D001969:Bromobenzenes / Q000032:analysis*; D002681:China; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000032:analysis*; D055768:Halogenated Diphenyl Ethers / Q000032:analysis*; D060106:Lakes / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D001969:Bromobenzenes; D055768:Halogenated Diphenyl Ethers; D014874:Water Pollutants, Chemical; C491509:decabromodiphenyl ethane