Diffusion of polybrominated diphenyl ether (PBDE) from an e-waste recycling area to the surrounding regions in Southeast China |
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| Authors: | Ya-Xian Zhao Xiao-Fei Qin Yan Li Peng-Yan Liu Mi Tian Shi-Shuai Yan Zhan-Fen Qin Xiao-Bai Xu Yong-Jian Yang |
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| Affiliation: | aCollege of Chemistry and Environmental Science, HeBei University, Baoding, Hebei, China;bState Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing, China;cTaizhou No. 1 Middle School, Taizhou City, Zhejiang Province, China |
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| Abstract: | 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 ∑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 of ∑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. |
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| Keywords: | Polybrominated diphenyl ether Diffusion E-waste recycling area Log-linear regression Cinnamomum camphora |
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