Sulfur isotopic fractionation and its implication: Sulfate formation in PM2.5 and coal combustion under different conditions
文献类型：期刊论文
| 作者 | Chen, Shanli2,3; Guo, Ziyan2,4; Guo, Zhaobing2,4; Guo, Qingjun5; Zhang, Yanlin1; Zhu, Bin3; Zhang, Haixiao2,4 |
| 刊名 | ATMOSPHERIC RESEARCH
 |
| 出版日期 | 2017-09-15 |
| 卷号 | 194页码:142-149 |
| 关键词 | PM2.5 Coal combustion Sulfate formation Sulfur isotopic fractionation |
| ISSN号 | 0169-8095 |
| DOI | 10.1016/j.atmosres.2017.04.034 |
| 通讯作者 | Guo, Zhaobing(guozbnuist@163.com) ; Guo, Qingjun(guoqj@igsnrr.ac.cn) |
| 英文摘要 | In order to exactly explore sulfur source and sulfate formation under highly polluted atmosphere, we determined delta S-34 values of sulfate in PM2.5 and atmospheric SO2 in Nanjing region from 1 to 23 Jan. 2014. The secondary sulfate formation mechanism was discussed based on sulfur isotopic fractionation in the process of SO2 oxidation. Meanwhile, we synchronously studied delta S-34 values of raw coals used locally as well as sulfur isotopic fractionation during the combustion under coal burning and smoldering. The results show that delta S-34 average values of SO2 and sulfate in PM2.5 were 1.5 parts per thousand and 5.1 parts per thousand, respectively. delta S-34 values of sulfate in PM2.5 were consistent with those of coals widely used in Nanjing region and Northern China, indicating coal combustion was an important sulfur source for PM2.5. Sulfur isotopic fractionation factors ranged from 1.0014 to 1.0075, implying that SO2 heterogeneous and homogeneous oxidation were coexisting during the formation of the secondary sulfate. The contribution of SO2 heterogeneous oxidation to sulfate varied from 40.7% to 64.8% during the observation period. delta S-34 values of coals presented moderately positive sulfur isotopic signatures due to organic sulfur in low sulfur coals were mainly formed by plant assimilation. Besides, the negative relationship between et values of coals and total sulfur contents was also found. In addition, there existed a significant sulfur isotopic fractionation effect during coal combustion. Sulfate in PM2.5 in flue gas enriched S-34, while SO2 in flue gas enriched S-32. There was presence of the difference of delta S-34 values in PM2.5 and SO2 in flue gas between coal burning and smoldering, which was related to coal property and combustion temperature. |
| WOS关键词 | CHEMICAL-COMPOSITIONS ; ELEMENTAL CARBON ; TIBETAN PLATEAU ; NANJING REGION ; MINERAL DUST ; CHINA ; AEROSOL ; SO2 ; OXIDATION ; ATMOSPHERE |
| 资助项目 | National Natural Science Foundation of China[41373023] ; National Natural Science Foundation of China[91544229] ; Jiangsu Province 333 Talent Cultivating Project ; Jiangsu Province Environmental Protection research project[2014t016] ; Jiangsu Student Innovation Training Program ; Priority Academic Program Development of Jiangsu Higher Education Institutions |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000405043700012 |
| 出版者 | ELSEVIER SCIENCE INC |
| 资助机构 | National Natural Science Foundation of China ; Jiangsu Province 333 Talent Cultivating Project ; Jiangsu Province Environmental Protection research project ; Jiangsu Student Innovation Training Program ; Priority Academic Program Development of Jiangsu Higher Education Institutions |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/62856]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Guo, Zhaobing; Guo, Qingjun |
| 作者单位 | 1.Nanjing Univ Informat Sci & Technol, Yale NUIST Ctr Atmospher Environm, Nanjing 210044, Jiangsu, Peoples R China 2.Nanjing Univ Informat Sci & Technol, Sch Environm Sci & Engn, Nanjing 210044, Jiangsu, Peoples R China 3.Nanjing Univ Informat Sci & Technol, Sch Atmospher Phys, Nanjing 210044, Jiangsu, Peoples R China 4.Collaborat Innovat Ctr Atmospher Environm & Equip, Nanjing 210044, Jiangsu, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Shanli,Guo, Ziyan,Guo, Zhaobing,et al. Sulfur isotopic fractionation and its implication: Sulfate formation in PM2.5 and coal combustion under different conditions[J]. ATMOSPHERIC RESEARCH,2017,194:142-149. |
| APA | Chen, Shanli.,Guo, Ziyan.,Guo, Zhaobing.,Guo, Qingjun.,Zhang, Yanlin.,...&Zhang, Haixiao.(2017).Sulfur isotopic fractionation and its implication: Sulfate formation in PM2.5 and coal combustion under different conditions.ATMOSPHERIC RESEARCH,194,142-149. |
| MLA | Chen, Shanli,et al."Sulfur isotopic fractionation and its implication: Sulfate formation in PM2.5 and coal combustion under different conditions".ATMOSPHERIC RESEARCH 194(2017):142-149. |
入库方式： OAI收割
来源：地理科学与资源研究所
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