Impact of dry deposition of semi-volatile organic compounds on secondary organic aerosols

Bertrand Bessagnet; Christian Seigneur; Laurent Menut

doi:10.1016/j.atmosenv.2010.01.027

Article dans une revue

Impact of dry deposition of semi-volatile organic compounds on secondary organic aerosols

Bertrand Bessagnet ¹ Christian Seigneur ² Laurent Menut ^{3, 4}

1 INERIS - Institut National de l'Environnement Industriel et des Risques

2 CEREA - Centre d'Enseignement et de Recherche en Environnement Atmosphérique

3 LMD - Laboratoire de Météorologie Dynamique (UMR 8539)

4 IPSL - Institut Pierre-Simon-Laplace

Abstract : Dry deposition of semi-volatile organic compounds (SVOC) is not currently treated in most chemical transport models of air quality and this omission has been identified as a possible major source of uncertainty. The effect of dry deposition of SVOC on the concentration of secondary organic aerosols (SOA) is investigated in summertime with the chemical transport model CHIMERE that simulates SOA concentrations by means of molecular SOA surrogate species. Omitting dry deposition could overestimate SOA concentrations by as much as 50%. This overestimation is larger during nighttime due to higher relative humidity.

Keywords : Modeling Dry deposition Secondary organic aerosols

Type de document :

Article dans une revue

Domaine :

Sciences de l'environnement

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https://hal-enpc.archives-ouvertes.fr/hal-00589313
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Soumis le : jeudi 28 avril 2011 - 15:13:33
Dernière modification le : mercredi 17 novembre 2021 - 12:30:26

Impact of dry deposition of semi-volatile organic compounds on secondary organic aerosols

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