Summer atmospheric polybrominated diphenyl ethers in urban and rural areas of northern China
2012
Wang, Chen | Li, Wei | Chen, Jiwei | Wang, Hongqijie | Li, Tongchao | Shen, Guofeng | Shen, Huizhong | Huang, Ye | Wang, Rong | Wang, Bin | Zhang, Yanyan | Tang, Jianhui | Liu, Wenxin | Wang, Xilong | Tao, Shu
High levels of polybrominated diphenyl ethers (PBDEs) have been extensively reported in urban areas and at e-waste recycling sites in coastal China. However, data are scarce in northern China and are not available in rural areas at all. In addition, it is often believed that air concentrations in rural areas are lower than those in urban areas without distinguishing rural residential areas and open fields. In this study, air samples were collected at 17 sites covering urban and rural (residential and open field) areas in northern China using active samplers. With BDE-209 dominated in all congeners, the average concentrations of BDE-209 (41 ± 72 pg/m³) and other 13 PBDEs (16 ± 12 pg/m³) were significantly lower than those found in south China, such as in Guangzhou or Hong Kong. On average, the total PBDE concentrations at the urban sites were 2.2 and 2.9 times of those at the rural residential and field sites, respectively.
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