Ammonium nitrate promotes sulfate formation through uptake kinetic regime
文献类型：期刊论文
| 作者 | Liu, Yongchun; Feng, Zemin; Zheng, Feixue; Bao, Xiaolei; Liu, Pengfei; Ge, Yanli; Zhao, Yan; Jiang, Tao; Liao, Yunwen; Zhang, Yusheng |
| 刊名 | ATMOSPHERIC CHEMISTRY AND PHYSICS
 |
| 出版日期 | 2021-09-07 |
| 卷号 | 21期号:17页码:13269-13286 |
| ISSN号 | 1680-7316 |
| 英文摘要 | Although the anthropogenic emissions of SO2 have decreased significantly in China, the decrease in SO42- in PM2: 5 is much smaller than that of SO2. This implies an enhanced formation rate of SO42- in the ambient air, and the mechanism is still under debate. This work investigated the formation mechanism of particulate sulfate based on statistical analysis of long-term observations in Shijiazhuang and Beijing supported with flow tube experiments. Our main finding was that the sulfur oxidation ratio (SOR) was exponentially correlated with ambient RH in Shijiazhuang (SOR D 0:15+0:0032 x exp.RH=16:2/) and Beijing (SOR -0:045 + 0:12 x exp.RH=37:8/). In Shijiazhuang, the SOR is linearly correlated with the ratio of aerosol water content (AWC) in PM2: 5 (SOR D 0:15+0:40 x AWC=PM2:5). Our results suggest that uptake of SO2 instead of oxidation of S(IV) in the particle phase is the rate-determining step for sulfate formation. NH4NO3 plays an important role in the AWC and the change of particle state, which is a crucial factor determining the uptake kinetics of SO2 and the enhanced SOR during haze days. Our results show that NH3 significantly promoted the uptake of SO2 and subsequently the SOR, while NO2 had little influence on SO2 uptake and SOR in the presence of NH3. |
| WOS研究方向 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46018]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 作者单位 | 1.Hebei Prov Meteorol Tech Equipment Ctr, Shijiazhuang 050021, Hebei, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100085, Peoples R China 3.Hebei Prov Acad Environm Sci, Shijiazhuang 050037, Hebei, Peoples R China 4.Beijing Univ Chem Technol, Adv Innovat Ctr Soft Matter Sci & Engn, Aerosol & Haze Lab, Beijing 100029, Peoples R China 5.Univ Helsinki, Fac Sci, Inst Atmospher & Earth Syst Res Phys, POB 64, Helsinki 00014, Fi 6.China West Normal Univ, Coll Chem & Chem Engn, Nanchong 637002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yongchun,Feng, Zemin,Zheng, Feixue,et al. Ammonium nitrate promotes sulfate formation through uptake kinetic regime[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2021,21(17):13269-13286. |
| APA | Liu, Yongchun.,Feng, Zemin.,Zheng, Feixue.,Bao, Xiaolei.,Liu, Pengfei.,...&Kulmala, Markku.(2021).Ammonium nitrate promotes sulfate formation through uptake kinetic regime.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(17),13269-13286. |
| MLA | Liu, Yongchun,et al."Ammonium nitrate promotes sulfate formation through uptake kinetic regime".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.17(2021):13269-13286. |
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。