Gas-particle phase partitioning and particle size distribution of chlorinated and brominated polycyclic aromatic hydrocarbons in haze
文献类型：期刊论文
| 作者 | Xu, Yang; Jin, Rong; Zheng, Minghui; Yang, Hongbo; Yang, Lili; Wu, Xiaolin; Liu, Guorui |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2017-09-07 |
| 卷号 | 231期号:0页码:1601-1608 |
| 关键词 | Chlorinated And Brominated Pahs Gas-particle Partitioning Particle Size Distribution Haze Days Polycyclic Aromatic Hydrocarbons |
| 英文摘要 | Chlorinated and brominated polycyclic aromatic hydrocarbons (Cl/Br-PAHs) are emerging semi-volatile organic pollutants in haze-associated particulate matter (PM). Their gas particle phase partitioning and distribution among PM fractions have not been clarified. Clarification would increase understanding of atmospheric behavior and health risks of Cl/Br-PAHs. In this study, samples of the gas phase and 4 PM phases (aerodynamic diameters (d(ae)) > 10 mu m, 2.5-10 mu m, 1.0-2.5 mu m, and <1.0 mu m) were collected simultaneously during haze events in Beijing and analyzed. Normalized histogram distribution indicated that the Cl/Br-PAHs tended to adhere to fine particles. Over 80% of the Cl-PAHs and 70% of the Br-PAHs were associated with fine PM (d(ae) < 2.5 mu m). The gas-particle phase partitioning and PM distribution of Cl/Br-PAHs when heating of buildings was required, which was associated with haze events, were obviously different from those when heating was not required. The relationship between the logarithmic geometric mean diameters of the Cl/Br-PAH congeners and reciprocal of the temperature (1/T) suggested that low air temperatures during the heating period could lead to high proportions of Cl/Br-PAHs in the fine particles. Increased coal burning during the heating period also contributed to high Cl/Br-PAH loads in the fine particles. (C) 2017 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39318]  |
| 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, Yang,Jin, Rong,Zheng, Minghui,et al. Gas-particle phase partitioning and particle size distribution of chlorinated and brominated polycyclic aromatic hydrocarbons in haze[J]. ENVIRONMENTAL POLLUTION,2017,231(0):1601-1608. |
| APA | Xu, Yang.,Jin, Rong.,Zheng, Minghui.,Yang, Hongbo.,Yang, Lili.,...&Liu, Guorui.(2017).Gas-particle phase partitioning and particle size distribution of chlorinated and brominated polycyclic aromatic hydrocarbons in haze.ENVIRONMENTAL POLLUTION,231(0),1601-1608. |
| MLA | Xu, Yang,et al."Gas-particle phase partitioning and particle size distribution of chlorinated and brominated polycyclic aromatic hydrocarbons in haze".ENVIRONMENTAL POLLUTION 231.0(2017):1601-1608. |
入库方式： OAI收割
来源：生态环境研究中心
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