Preliminary study of the influence of OH radical source on the formation process of secondary organi

• 作 者: HongLI[1]KeiSATO[2]AkinoriTAKAMI[2]XuezhongWANG[1]
• 机 构: State Key Laboratory of Environmental Criteria and Assessment, Chinese Research Academy of Environme
• 出 处: 第十一届全国气溶胶会议暨第十届海峡两岸气溶胶技术研讨会
• 发表日期: 2013年期

　　The isoprene/NOx,isoprene/NOx/CH3ONO and isoprene/NOx/H2O2 mixtures were irradiated separately to simulate the formation of secondary organic aerosol (SOA) from the OH-initiated isoprene photo-oxidation reaction in a 6-m3,teflon-coated,stainless steel indoor smog chamber; An in-situ Long-path FTIR,a SMPS and a AMS were used to measure the concentrations of reactants and gaseous products,the size distribution and volume concentrations of SOA and mass concentration of organic aerosol and inorganic components of aerosols.Oxidation process of isoprene,the product yields of main gaseous reaction products,and the SOA formation process were investigated and compared among the three mixtures irradiation systems to study the effects of OH radical sources on the format ion process of secondary organic aerosols.