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Abstract <p>The work discusses heterophase accumulation reactions for sulfates and nitrates in the atmosphere and their part in aerosol haze formation. According to the atmosphere composition monitoring data on Beijing, it is high air humidity and high ammonia content that turn out to be crucial for involvement of chemical processes into haze formation in the atmosphere. With regard to this, generation of sulfates during the reaction SO<sub>2(gas)</sub> <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11826_2025_9196_Article_IEq1.gif" Format="GIF" Height="30" Rendition="HTML" Resolution="72" Type="Linedraw" Width="126" /> </InlineMediaObject> <EquationSource Format="TEX">\(\xrightarrow{{{\text{Mn/Fe}}{\text{, }}{{{\text{O}}}_{{\text{2}}}}}}{\text{SO}}_{{{\text{4(aer)}}}}^{{2 - }}\)</EquationSource> <!--PhysChB2570046Pronchev-m1--> </InlineEquation> goes into the fast degenerate-branched mode which initiates formation of nitrates. Occurring simultaneously with regional transport, this is accompanied by hygroscopicity of particles and their mass concentration increasing at rates which are characteristic of haze formation.</p>

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Involvement of Chemical Reactions in Atmospheric Haze Formation

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • G. B. Pronchev,
  • A. N. Yermakov

摘要

Abstract

The work discusses heterophase accumulation reactions for sulfates and nitrates in the atmosphere and their part in aerosol haze formation. According to the atmosphere composition monitoring data on Beijing, it is high air humidity and high ammonia content that turn out to be crucial for involvement of chemical processes into haze formation in the atmosphere. With regard to this, generation of sulfates during the reaction SO2(gas) \(\xrightarrow{{{\text{Mn/Fe}}{\text{, }}{{{\text{O}}}_{{\text{2}}}}}}{\text{SO}}_{{{\text{4(aer)}}}}^{{2 - }}\) goes into the fast degenerate-branched mode which initiates formation of nitrates. Occurring simultaneously with regional transport, this is accompanied by hygroscopicity of particles and their mass concentration increasing at rates which are characteristic of haze formation.