title: Tree bark as a biomonitor for the determination of polychlorinated biphenyls and polybrominated diphenyl ethers from Southern Jiangsu, China: levels, distribution, and possible sources.
abstract: Tree bark was used as the passive air sampler to evaluate polychlorinated biphenyl (PCB) and polybrominated diphenyl ether (PBDE) pollution and possible sources in Southern Jiangsu. The concentrations of PCBs and Σ7PBDEs were in the range of 0.58-5.19 ng/g dry weight (dw; mean 1.79 ng/g dw) and 17.9-243 pg/g dw (mean 74.7 pg/g dw), respectively. Tri-PCBs were the major PCB homologs, and technical PCB product Ar1242 was identified as the main source. BDE209 concentrations (4.29-456 ng/g dw) were relatively high, indicating that BDE209 pollution was serious in this region. The deca-BDE commercial mixture was the predominant commercial PBDE product used in this region. A good correlation was found between tree bark and polyurethane foam (PUF) disks in Σ6PCB monitoring, suggesting that both of them respond well to the gas-phase PCB monitoring.
authors: State Environmental Protection Key Laboratory of Dioxin Pollution Control, National Research Center for Environmental Analysis and Measurement, No. 1 Yuhuinanlu, Chaoyang District, Beijing, 100029, China, zhliou@163.com.
authors: Li
authors: L
authors: Zhou
authors: Liang
authors: L
authors: Dong
authors: Ye-Ru
authors: YR
authors: Huang
authors: Shuang-Xin
authors: SX
authors: Shi
authors: Li-Fei
authors: LF
authors: Zhang
authors: Xiu-Lan
authors: XL
authors: Zhang
authors: Wen-Long
authors: WL
authors: Yang
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D002681:China; D004784:Environmental Monitoring / Q000379:methods* / Q000706:statistics & numerical data; D055768:Halogenated Diphenyl Ethers / Q000032:analysis*; D024301:Plant Bark / Q000737:chemistry*; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D011140:Polyurethanes
chemical_list: D000393:Air Pollutants; D055768:Halogenated Diphenyl Ethers; D011140:Polyurethanes; C028279:polyurethane foam; D011078:Polychlorinated Biphenyls