[PBDEs pollution in the atmosphere of a typical E-waste dismantling region].
The vapor-phase and particulate-phase samples were collected from the E-waste dismantling region (E) and a reference region (S), which is located in the upwind direction of the E and where the costume industry is developed. The aim was to acquire information about the concentrations, gas/particle partitioning and distribution of polybrominated diphenyt ethers (PBDEs). 11 congeners PBDEs were detected with GC-NCI-MS. The results showed that E-waste dismantling has resulted in serious pollution and the PBDE concentrations (from tri-to deca-BDE) ranged from 51.1 pg x m(-3) to 2685 pg x m(-3) (mean:830 pg x m(-3)), while the PBDE concentrations (from tri-to deca-BDE) in S were in the range of 1.00 pg x m(-3) to 98.9 pg x m(-3) (mean: 28.7 pg x m(-3)). The gas/particle partitioning of PBDEs exhibited a strong dependence on bromine number. Low-brominated PBDEs tend to have a higher concentration in the gas-phase while highly brominated PBDEs are mostly associated with the particulate. The mass distribution of PBDEs in E (including vapor-phase and particulate-phase) was dominated by penta-BDE, accounting for 54.3% of the total PBDEs, followed by deca-BDE, accounting for 23.8%. This pollution characters validated that the E-waste did not only come from Asia, but also from North America and Europe.
Guangdong Key Laboratory of Environmental Protection and Resources Utilization, State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
Duo-hong
DH
Chen
Li-ping
LP
Li
Xin-hui
XH
Bi
Jin-ping
JP
Zhao
Guo-ying
GY
Sheng
Jia-mo
JM
Fu
D000393:Air Pollutants / Q000032:analysis*; D002681:China; D004581:Electronics; D004784:Environmental Monitoring; D055768:Halogenated Diphenyl Ethers / Q000032:analysis*; D007220:Industrial Waste / Q000032:analysis
D000393:Air Pollutants; D055768:Halogenated Diphenyl Ethers; D007220:Industrial Waste