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Shi S.-X.,Dioxins Laboratory of the National Research Center for Environment Analysis and Measurement | Zeng L.-Z.,Dioxins Laboratory of the National Research Center for Environment Analysis and Measurement | Zhou L.,Dioxins Laboratory of the National Research Center for Environment Analysis and Measurement | Zhang L.-F.,Dioxins Laboratory of the National Research Center for Environment Analysis and Measurement | And 3 more authors.
Huanjing Kexue/Environmental Science | Year: 2011

Polybrominated Diphenyl Ethers (PBDEs) were measured in camphor bark samples from 40 locations in Suzhou, Nantong and Wuxi, Jiangsu Province. The samples were extracted by accelerated solvent extraction (ASE) and analyzed using gas chromatography/mass spectrometry (GC-MS). The 8 PBDEs were detected in all samples and the average concentrations of total PBDEs(BDE28, 47, 100, 99, 153, 154, 183, 209) was 835 μg/kg lipid weight (ranged from 112 to 7460 μg/kg lipid weight). The BDE209 was the main homologues and accounted for 65.7%-99.6% of ∑ 8PBDEs. The predominant commercial products source for PBDEs in bark was Deca-BDE commercial products. Concentration of ∑ 8PBDEs detected in central district of Nantong were significantly higher than those in industrial park, suggesting the discharge of industrial point source might be the main source of PBDEs in this city. No significant difference was found between the levels of ∑ 8PBDEs in camphor bark collected from Suzhou and Wuxi. It can be concluded that the two cities are contaminated interactionally by PBDEs through atmospheric dispersion. The homologue and congener profiles of penta-BDEs for camphor bark were not consistent with commercial products, atmosphere and dust soil, which related with adsorption effect of tree bark and degradation effect of PBDEs. Source

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