典型文献
Assessing the influence of environmental conditions on secondary organic aerosol formation from a typical biomass burning compound
文献摘要:
The atmospheric chemistry in complex air pollution remains poorly understood.In order to probe how environmental conditions can impact the secondary organic aerosol(SOA)formation from biomass burning emissions,we investigated the photooxidation of 2,5-dimethylfuran(DMF)under different environmental conditions in a smog chamber.It was found that SO2 could promote the formation of SOA and increase the amounts of inorganic salts produced during the photooxidation.The formation rate of SOA and the corresponding SOA mass concentration increased gradually with the increasing DMF/OH ratio.The addi-tion of(NH4)2SO4 seed aerosol accelerated the SOA formation rate and significantly short-ened the time for the reaction to reach equilibrium.Additionally,a relatively high illumina-tion intensity promoted the formation of OH radicals and,correspondingly,enhanced the photooxidation of DMF.However,the enhancement of light intensity accelerated the aging of SOA,which led to a gradual decrease of the SOA mass concentration.This work shows that by having varying influence on atmospheric chemical reactions,the same environmen-tal factor can affect SOA formation in different ways.The present study is helpful for us to better understand atmospheric complex pollution.
文献关键词:
中图分类号:
作者姓名:
Xiaotong Jiang;Dantong Liu;Li Xu;Narcisse T.Tsona;Lin Du
作者机构:
Environment Research Institute,Shandong University,Qingdao 266237,China;Department of Atmospheric Sciences,School of Earth Sciences,Zhejiang University,Hangzhou 310027,China
文献出处:
引用格式:
[1]Xiaotong Jiang;Dantong Liu;Li Xu;Narcisse T.Tsona;Lin Du-.Assessing the influence of environmental conditions on secondary organic aerosol formation from a typical biomass burning compound)[J].环境科学学报(英文版),2022(04):136-148
A类:
photooxidation,dimethylfuran
B类:
Assessing,influence,environmental,conditions,secondary,aerosol,formation,from,typical,biomass,burning,compound,atmospheric,chemistry,complex,air,pollution,remains,poorly,understood,In,order,probe,impact,SOA,emissions,investigated,DMF,different,smog,chamber,It,was,found,that,SO2,could,amounts,inorganic,salts,produced,during,concentration,increased,gradually,increasing,addi,NH4,2SO4,seed,accelerated,significantly,short,ened,reach,equilibrium,Additionally,relatively,high,illumina,intensity,promoted,radicals,correspondingly,enhanced,However,enhancement,light,aging,which,led,decrease,This,work,shows,by,having,varying,chemical,reactions,same,affect,ways,present,study,helpful,us,better,understand
AB值:
0.506587
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