title: Levels and seasonal variations of polybrominated diphenyl ethers in the urban atmosphere of Beijing, China.
abstract: Year-round air samples were collected at Beijing on a weekly basis from 2009 to 2010, to determine the levels, gas-particle distribution, seasonal variations and compositional profiles of 8 polybrominated diphenyl ether congeners. The annual mean atmospheric concentrations of ∑7PBDEs and BDE-209 were 6.16 pg/m(3)(N.D-23.6 pg/m(3)) and 164 pg/m(3) (30.7-454 pg/m(3)), respectively. The results showed wide consumption of industrial products containing commercial deca-BDE mixtures in Beijing. The seasonal variations showed that lower brominated congeners had higher levels and greater proportions in the gaseous phase at warm sampling periods than the higher brominated counterparts.
authors.affiliation: National Research Center for Environmental Analysis and Measurement, No. 1 Yuhuinan Road, Chaoyang District, Beijing, 100029, China. shishuangxin2001@163.com
authors.forename: Shuangxin
authors.initials: S
authors.lastname: Shi
authors.forename: Yeru
authors.initials: Y
authors.lastname: Huang
authors.forename: Kuiyuan
authors.initials: K
authors.lastname: Wan
authors.forename: Liang
authors.initials: L
authors.lastname: Dong
authors.forename: Yongliang
authors.initials: Y
authors.lastname: Yang
mesh_terms: D000388:Air / Q000032:analysis* / Q000592:standards; D000393:Air Pollutants / Q000032:analysis*; D002681:China; D004784:Environmental Monitoring; D055768:Halogenated Diphenyl Ethers / Q000032:analysis*; D052638:Particulate Matter / Q000032:analysis*; D012621:Seasons; D014507:Urbanization
chemical_list: D000393:Air Pollutants; D055768:Halogenated Diphenyl Ethers; D052638:Particulate Matter