A large-scale outdoor atmospheric simulation smog chamber for studying atmospheric photochemical processes: Characterization and preliminary application
文献类型：期刊论文
| 作者 | Li, Junling; Li, Hong; Wang, Xuezhong; Wang, Weigang; Ge, Maofa; Zhang, Hao; Zhang, Xin; Li, Kun ; Chen, Yan; Wu, Zhenhai
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| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| 出版日期 | 2021-04 |
| 卷号 | 102页码:185-197 |
| ISSN号 | 1001-0742 |
| 关键词 | Outdoor smog chamber Characterization experiments Photo-oxidation reactions Secondary organic aerosol |
| 英文摘要 | Understanding the formation mechanisms of secondary air pollution is very important for the formulation of air pollution control countermeasures in China. Thus, a large-scale outdoor atmospheric simulation smog chamber was constructed at Chinese Research Academy of Environmental Sciences (the CRAES Chamber), which was designed for simulating the atmospheric photochemical processes under the conditions close to the real atmospheric environment. The chamber consisted of a 56-m(3) fluorinated ethylene propylene (FEP) Teflon film reactor, an electrically-driven stainless steel alloy shield, an auxiliary system, and multiple detection instrumentations. By performing a series of characterization experiments, we obtained basic parameters of the CRAES chamber, such as the mixing ability, the background reactivity, and the wall loss rates of gaseous compounds (propene, NO, NO2, ozone) and aerosols (ammonium sulfate). Oxidation experiments were also performed to study the formation of ozone and secondary organic aerosol (SOA), including alpha-pinene ozonolysis, propene and 1,3,5-trimethylbenzene photooxidation. Temperature and seed effects on the vapor wall loss and SOA yields were obtained in this work: higher temperature and the presence of seed could reduce the vapor wall loss; SOA yield was found to depend inversely on temperature, and the presence of seed could increase SOA yield. The seed was suggested to be used in the chamber to reduce the interaction between the gas phase and chamber walls. The results above showed that the CRAES chamber was reliable and could meet the demands for investigating tropospheric chemistry. (C) 2020 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| WOS研究方向 | Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45611]  |
| 专题 | 生态环境研究中心_大气污染控制中心 |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Struct Chem Unstable & Stable Speci, CAS Res Educ Ctr Excellence Mol Sci, Beijing Natl Lab Mol Sci B 2.Paul Scherrer Inst PSI, Lab Atmospher Chem, CH-5232 Villigen, Switzerland 3.Ctr Natl Rech Sci ICARE CNRS, Observ Sci Univers Reg Ctr OSUC, Inst Combust Aerotherm Re 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 5.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China 6.China Meteorol Adm, Key Lab Atmospher Chem, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Junling,Li, Hong,Wang, Xuezhong,et al. A large-scale outdoor atmospheric simulation smog chamber for studying atmospheric photochemical processes: Characterization and preliminary application[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2021,102:185-197. |
| APA | Li, Junling.,Li, Hong.,Wang, Xuezhong.,Wang, Weigang.,Ge, Maofa.,...&Liu, Yongchun.(2021).A large-scale outdoor atmospheric simulation smog chamber for studying atmospheric photochemical processes: Characterization and preliminary application.JOURNAL OF ENVIRONMENTAL SCIENCES,102,185-197. |
| MLA | Li, Junling,et al."A large-scale outdoor atmospheric simulation smog chamber for studying atmospheric photochemical processes: Characterization and preliminary application".JOURNAL OF ENVIRONMENTAL SCIENCES 102(2021):185-197. |
入库方式： OAI收割
来源：生态环境研究中心
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