Dust emission reduction enhanced gas-to-particle conversion of ammonia in the North China Plain
文献类型：期刊论文
| 作者 | Liu, Yongchun; Zhan, Junlei; Zheng, Feixue; Song, Boying; Zhang, Yusheng; Ma, Wei ; Hua, Chenjie; Xie, Jiali; Bao, Xiaolei; Yan, Chao
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| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2022 |
| 卷号 | 13期号:1页码:6887-1-10 |
| 英文摘要 | Liu et al. found that the formation rate of particulate ammonium is slower in the atmosphere than that observed in the laboratory, while it is sped up due to an increase in aerosol acidity driven by an emission reduction of dust in North China Plain. Ammonium salt is an important component of particulate matter with aerodynamic diameter less than 2.5 mu m (PM2.5) and has significant impacts on air quality, climate, and natural ecosystems. However, a fundamental understanding of the conversion kinetics from ammonia to ammonium in unique environments of high aerosol loading is lacking. Here, we report the uptake coefficient of ammonia (gamma(NH3)) on ambient PM2.5 varying from 2.2 x 10(-4) to 6.0 x 10(-4) in the North China Plain. It is significantly lower than those on the model particles under simple conditions reported in the literature. The probability-weighted gamma(NH3) increases obviously, which is well explained by the annual decrease in aerosol pH due to the significant decline in alkali and alkali earth metal contents from the emission source of dust. Our results elaborate on the complex interactions between primary emissions and the secondary formation of aerosols and the important role of dust in atmospheric chemistry. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/48448]  |
| 专题 | 生态环境研究中心_大气污染控制中心 |
| 作者单位 | 1.Chinese Academy of Sciences 2.Beijing University of Chemical Technology 3.Hebei Chemical & Pharmaceutical College 4.University of Helsinki 5.Nanjing University 6.Peking University 7.Research Center for Eco-Environmental Sciences (RCEES) |
| 推荐引用方式 GB/T 7714 | Liu, Yongchun,Zhan, Junlei,Zheng, Feixue,et al. Dust emission reduction enhanced gas-to-particle conversion of ammonia in the North China Plain[J]. NATURE COMMUNICATIONS,2022,13(1):6887-1-10. |
| APA | Liu, Yongchun.,Zhan, Junlei.,Zheng, Feixue.,Song, Boying.,Zhang, Yusheng.,...&Kulmala, Markku.(2022).Dust emission reduction enhanced gas-to-particle conversion of ammonia in the North China Plain.NATURE COMMUNICATIONS,13(1),6887-1-10. |
| MLA | Liu, Yongchun,et al."Dust emission reduction enhanced gas-to-particle conversion of ammonia in the North China Plain".NATURE COMMUNICATIONS 13.1(2022):6887-1-10. |
入库方式： OAI收割
来源：生态环境研究中心
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