Methylsiloxanes and Their Brominated Products in One e-Waste Recycling Area in China: Emission, Environmental Distribution, and Elimination
文献类型：期刊论文
| 作者 | Xu, Lin; Huang, Zichun; Zhang, Qiaoli; Xiang, Xiaoling; Zhang, Shengxiao; Cai, Yaqi |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2020-04-07 |
| 卷号 | 54期号:7页码:4267-4274 |
| ISSN号 | 0013-936X |
| 英文摘要 | The present study investigated the sources and fates of methylsiloxanes and their brominated products in one e-waste recycling area of China. During thermal (30-1000 degrees C) recycling experiments for printed wiring boards (PWBs), besides volatile methylsiloxanes (D4, D5, and D6), their monobrominated products, that is, D3D(CH2Br), D4D(CH2Br), and D5D(CH2Br), were also found by quadrupole time-of-flight gas chromatography- mass spectrometry to have 2-3 orders of magnitude lower emissions (0.31-1.3 mu g/g) than those (18.1-866 mu g/g) of parent methylsiloxanes. Overall, the fastest emissions of methylsiloxanes and bromo-methylsiloxanes occurred at 300-400 and 400-500 degrees C, respectively, accounting for 35.3-51.0 and 39.4-82.1% of their total emission. In the e-waste recycling area, concentrations of D4-D6 were 1.1-75.0 mu g/g dw [detection frequency (df) = 100%] in 31 dusts from PWB treatment workshops, while limits of detection (LOD) < 683 ng/g dw (df = 69-100%) in 48 surrounding soils were up to 3 orders of magnitudes higher than those in reference areas. Meanwhile, D3D(CH2Br)-D5D(CH2Br) were detected in both dusts ( |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44735]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Xu, Lin,Huang, Zichun,Zhang, Qiaoli,et al. Methylsiloxanes and Their Brominated Products in One e-Waste Recycling Area in China: Emission, Environmental Distribution, and Elimination[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2020,54(7):4267-4274. |
| APA | Xu, Lin,Huang, Zichun,Zhang, Qiaoli,Xiang, Xiaoling,Zhang, Shengxiao,&Cai, Yaqi.(2020).Methylsiloxanes and Their Brominated Products in One e-Waste Recycling Area in China: Emission, Environmental Distribution, and Elimination.ENVIRONMENTAL SCIENCE & TECHNOLOGY,54(7),4267-4274. |
| MLA | Xu, Lin,et al."Methylsiloxanes and Their Brominated Products in One e-Waste Recycling Area in China: Emission, Environmental Distribution, and Elimination".ENVIRONMENTAL SCIENCE & TECHNOLOGY 54.7(2020):4267-4274. |
入库方式： OAI收割
来源：生态环境研究中心
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