NOx promotion of SO2 conversion to sulfate: An important mechanism for the occurrence of heavy haze during winter in Beijing
文献类型：期刊论文
| 作者 | Ma, Jinzhu; Chu, Biwu; Liu, Jun; Liu, Yongchun; Zhang, Hongxing; He, Hong
|
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2018-02-01 |
| 卷号 | 233页码:662-669 |
| 关键词 | Haze Sulfate NOx Promoting effects |
| ISSN号 | 0269-7491 |
| 文献子类 | Article |
| 英文摘要 | In this study, concentrations of NOx, SO2, O-3 and fine particles (PM2.5) were measured at three monitoring stations in Beijing during 2015. For extreme haze episodes during 25 Nov.- 3 Dec. 2015, observation data confirmed that high concentrations of NOx promoted the conversion of SO2 to sulfate. Annual data confirmed that this is an important mechanism for the occurrence of heavy haze during winter in Beijing. Furthermore, in situ perturbation experiments in a potential aerosol mass (PAM) reactor were carried out at Shengtaizhongxin (STZX) station during both clean and polluted days. The concentrations of SO42-, NH4+, NOT and organic aerosol were positively related to the concentration of added NO2. These results provide definitive evidence that NO2 can promote the conversion of SO2 to sulfate. At the same time, we found that NO2 can promote the formation of NH4+ and organic compounds in the aerosols. Our results illustrate that strengthened controls of nitrogen oides is a key step in reducing the fine particles level in China. (C) 2017 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/40822]  |
| 专题 | 生态环境研究中心_大气污染控制中心 |
| 推荐引用方式 GB/T 7714 | Ma, Jinzhu,Chu, Biwu,Liu, Jun,et al. NOx promotion of SO2 conversion to sulfate: An important mechanism for the occurrence of heavy haze during winter in Beijing[J]. ENVIRONMENTAL POLLUTION,2018,233:662-669. |
| APA | Ma, Jinzhu,Chu, Biwu,Liu, Jun,Liu, Yongchun,Zhang, Hongxing,&He, Hong.(2018).NOx promotion of SO2 conversion to sulfate: An important mechanism for the occurrence of heavy haze during winter in Beijing.ENVIRONMENTAL POLLUTION,233,662-669. |
| MLA | Ma, Jinzhu,et al."NOx promotion of SO2 conversion to sulfate: An important mechanism for the occurrence of heavy haze during winter in Beijing".ENVIRONMENTAL POLLUTION 233(2018):662-669. |
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。