Are unintentionally produced polychlorinated biphenyls the main source of polychlorinated biphenyl occurrence in soils
文献类型：期刊论文
| 作者 | Song, Shuai; Li, Qifeng; Cao, Xianghui ; Wang, Chenchen; Zhang, Hong; Lu, Yonglong; Xue, Jianfang
|
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2018-01-12 |
| 卷号 | 243页码:492-500 |
| 关键词 | Polychlorinated biphenyls Urban-to-rural spatial distribution Emission inventory Source identification Pollutant fate |
| ISSN号 | 0269-7491 |
| 文献子类 | Article |
| 英文摘要 | The production of polychlorinated biphenyls (PCBs) has been banned globally for decades, but PCB concentrations in environmental media remain relatively high, especially in urban areas. Emissions estimates, studies of soil gradients between urban and rural areas, and quantitative identification of regional sources of PCBs in soils are necessary for understanding the environmental behavior of PCBs. In this study, regional PCB emissions were estimated at a resolution of 10 km x 10 km, and the spatial distribution of soil PCBs from urban to rural areas was studied along the Bohai and Yellow Sea regions. Compared with rural areas, mean PCB concentrations in urban soils (20.7 ng/g) were found to be higher, and concentrations decreased with distance from the city. Across both latitude and longitude directions, high PCB emissions in urban areas matched the distribution of total PCB concentrations in soils. The concentrations of the pollutants PCB28, PCB52, PCB101, PCB118, PCB138, PCB153, and PCB180 in soils originated from 5-year emissions, and accounted for 97%, 95%, 84%, 81%, 58%, 57%, and 27% of the total emissions, respectively. Unintentionally produced PCB (UP-PCB) emissions, which are mainly derived from cement (42%), pig iron (37%), crude steel (18%), and rolled steel (3%) industries, are the major contributors to PCBs in soils. Further identification of the sources and fates of PCBs requires a combination of field, laboratory, and modeling efforts. (C) 2018 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/40712]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Song, Shuai,Li, Qifeng,Cao, Xianghui,et al. Are unintentionally produced polychlorinated biphenyls the main source of polychlorinated biphenyl occurrence in soils[J]. ENVIRONMENTAL POLLUTION,2018,243:492-500. |
| APA | Song, Shuai.,Li, Qifeng.,Cao, Xianghui.,Wang, Chenchen.,Zhang, Hong.,...&Xue, Jianfang.(2018).Are unintentionally produced polychlorinated biphenyls the main source of polychlorinated biphenyl occurrence in soils.ENVIRONMENTAL POLLUTION,243,492-500. |
| MLA | Song, Shuai,et al."Are unintentionally produced polychlorinated biphenyls the main source of polychlorinated biphenyl occurrence in soils".ENVIRONMENTAL POLLUTION 243(2018):492-500. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。