Journal
CHEMOSPHERE
Volume 76, Issue 11, Pages 1470-1476Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2009.07.023
Keywords
Polybrominated diphenyl ether; Diffusion; E-waste recycling area; Log-linear regression; Cinnamomum camphora
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Funding
- Knowledge Innovation Program of Chinese Academy of Sciences [KZCX2-YW-420-3, KZCX2-YW-Q-02-05]
- National Natural Science Foundation of China [20437020, 20677074]
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Using Cinnamomum camphora (C. camphora) leaves as biomonitors. we investigated that the diffusion of polybrominated diphenyl ethers (PBDEs) from an e-waste recycling area to the surrounding regions. Variance in Sigma 32PBDEs concentrations (0.46-399.93 ng g(-1) dry weight) in the leaves showed that PBDEs from the e-waste recycling area diffused into the surrounding regions, and resulted in a halo of PBDEs contamination, at least 74 km in radius. The attenuation Sigma 32PBDEs in the diffusing process fitted in log-linear regression. The difference in the attenuating slopes of linear equations among different directions can be explained by terrain and wind direction. The attenuation of PBDE congeners also fitted well in log-linear regression. The findings that similar attenuating slopes and characteristic travel distance among congeners suggest that the transport behavior of lower brominated congeners might not differ from that of higher brominated congeners in short-range scale. (C) 2009 Elsevier Ltd. All rights reserved.
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