<b>Measurements of Total Radical Reactivity of Volatile Organic Compounds (VOCs) and Total Organic Nitrates to Evaluate Secondary Organic Aerosol (SOA) Formation </b>

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  • <b>SOA 生成評価のための前駆体VOCs のラジカル反応性と全有機 </b><b>硝酸量の計測 </b>
  • SOA生成評価のための前駆体VOCsのラジカル反応性と全有機硝酸量の計測
  • SOA セイセイ ヒョウカ ノ タメ ノ ゼンクタイ VOCs ノ ラジカル ハンノウセイ ト ゼン ユウキ ショウサンリョウ ノ ケイソク

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Abstract

Volatile organic compounds, VOCs, are emitted from various sources into the atmosphere. Through the reactions of VOCs with atmospheric radicals (eg. daytime OH and nighttime NO3) and all-day O3, the formation of secondary organic aerosols, SOA, is common and therefore an important subject of study. To investigate the mechanisms of reactions in the atmosphere and to control SOAs effectively, it is essential to capture the behavior of emitted VOCs with consideration of their radical reactivity.Meanwhile, organic nitrates (ONs) like alkyl nitrates (ANs) and peroxyalkyl nitrates (PNs) have been focused upon as important intermediates for SOA. To investigate the mechanisms of SOA formation from VOCs, it is essential to capture the behavior of intermediates such as ONs. In this manuscript, tools for measuring (1) total radical reactivity of VOCs and (2) total particulate organic nitrates were developed as applications for present NO2 analyzers.

Journal

  • Earozoru Kenkyu

    Earozoru Kenkyu 29 (S1), s47-s54, 2014

    Japan Association of Aerosol Science and Technology

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