[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.
Chen
Duo-hong
DH
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.
Li
Li-ping
LP
Bi
Xin-hui
XH
Zhao
Jin-ping
JP
Sheng
Guo-ying
GY
Fu
Jia-mo
JM
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