A large-scale outdoor atmospheric simulation smog chamber for studying atmospheric photochemical processes:Characterization and preliminary application

作     者：Junling Li Hong Li Xuezhong Wang Weigang Wang Maofa Ge Hao Zhang Xin Zhang Kun Li Yan Chen Zhenhai Wu Fahe Chai Fan Meng Yujing Mu Abdelwahid Mellouki Fang Bi Yujie Zhang Lingyan Wu Yongchun Liu Junling Li;Hong Li;Xuezhong Wang;Weigang Wang;Maofa Ge;Hao Zhang;Xin Zhang;Kun Li;Yan Chen;Zhenhai Wu;Fahe Chai;Fan Meng;Yujing Mu;Abdelwahid Mellouki;Fang Bi;Yujie Zhang;Lingyan Wu;Yongchun Liu

作者机构：State Key Laboratory of Environmental Criteria and Risk AssessmentChinese Research Academy of Environmental SciencesBeijing 100012China Key Laboratory of Atmospheric ChemistryChina Meteorological AdministrationBeijing 100081China State Key Laboratory for Structural Chemistry of Unstable and Stable SpeciesBeijing National Laboratory for Molecular Sciences(BNLMS)CAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China Laboratory of Atmospheric ChemistryPaul Scherrer Institute(PSI)5232 VilligenSwitzerland Research Centre for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Institut de Combustion AérothermiqueRéactivitéet EnvironnementCentre National de la Recherche Scientifique(ICARE-CNRS)Observatoire des Sciences de l’Univers en région Centre(OSUC)CS 5006045071 cedex02 OrléansFrance Beijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2021年第33卷第4期

页      面：185-197页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学] 0703[理学-化学] 

基　　金：supported by the China Postdoctoral Science Foundation (No.2019M660752) the Beijing Municipal Science&Technology Commission (No.Z181100005418015),LAC/CMA (No.2019B08) the Fundamental Research Funds for Central Public Welfare Scientific Research Institutes of China Chinese Research Academy of Environmental Sciences (Nos.GYG5051201,2009GGQD18,2019YSKY-018,2019YSKY-012) the Chinese Academy of Sciences Strategic Leading Science and Technology Project (Class B)(No.XDB05010200) 

主　　题：Outdoor smog chamber Characterization experiments Photo-oxidation reactions Secondary organic aerosol 

摘      要：Understanding the formation mechanisms of secondary air pollution is very important for the formulation of air pollution control countermeasures in ***,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 *** 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 *** 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,NO_(2),ozone) and aerosols(ammonium sulfate).Oxidation experiments were also performed to study the formation of ozone and secondary organic aerosol(SOA),including α-pinene ozonolysis,propene and 1,3,5-trimethylbenzene *** 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 *** seed was suggested to be used in the chamber to reduce the interaction between the gas phase and chamber *** results above showed that the CRAES chamber was reliable and could meet the demands for investigating tropospheric chemistry.