TY - GEN
T1 - Role of Organic Aerosol Chemistry Schemes on Particulate Matter Modeling in Europe
AU - Jiang, Jianhui
AU - Aksoyoglu, Sebnem
AU - Ciarelli, Giancarlo
AU - Prévôt, André S.H.
N1 - Publisher Copyright:
© 2021, The Author(s), under exclusive license to Springer-Verlag GmbH, DE, part of Springer Nature.
PY - 2021
Y1 - 2021
N2 - Organic aerosols (OA) contribute to 20–90% of the particulate matter (PM) concentration worldwide. To investigate the effects of OA schemes on PM modeling, we conducted whole-year (2010) simulations in Europe using the regional air quality model CAMx v6.50 with three different OA schemes: (1) an updated version of the traditional Odum 2-product model SOAP2.1, (2) the standard volatility basis set (VBS) algorithm, and (3) a modified VBS scheme which applies 3 times of POA emissions to offset the influence of missing semi-volatile organic compound (SVOC) emissions and enables aging of secondary condensable gases from biomass burning (referred as VBSNEW). The modeled OA concentration by SOAP was significantly higher than OA by VBS over land especially in the eastern Europe, while VBS led to higher OA only over the Mediterranean sea. The higher OA–SOAP mainly came from the primary organic aerosol (POA), which was 0.4 µg m−3 higher than POA–VBS on average. However, the SOA–VBS was higher than SOA–SOAP in most of the areas except for the northeastern Europe, where the modeled OA concentration was strongly influenced by the boundary conditions. The VBSNEW increased the domain average OA by 26% and 63% compared to SOAP and VBS, respectively. Both POA and SOA were increased by VBSNEW, especially in winter when biomass burning is the dominant OA source. Comparison with observed PM2.5 in 432 AIRBASE stations in Europe showed that VBSNEW led to lowest mean bias (MB) and root-mean-square error (RMSE), which reduced MB by 1.3 and 0.7 μg m−3 compared to VBS and SOAP.
AB - Organic aerosols (OA) contribute to 20–90% of the particulate matter (PM) concentration worldwide. To investigate the effects of OA schemes on PM modeling, we conducted whole-year (2010) simulations in Europe using the regional air quality model CAMx v6.50 with three different OA schemes: (1) an updated version of the traditional Odum 2-product model SOAP2.1, (2) the standard volatility basis set (VBS) algorithm, and (3) a modified VBS scheme which applies 3 times of POA emissions to offset the influence of missing semi-volatile organic compound (SVOC) emissions and enables aging of secondary condensable gases from biomass burning (referred as VBSNEW). The modeled OA concentration by SOAP was significantly higher than OA by VBS over land especially in the eastern Europe, while VBS led to higher OA only over the Mediterranean sea. The higher OA–SOAP mainly came from the primary organic aerosol (POA), which was 0.4 µg m−3 higher than POA–VBS on average. However, the SOA–VBS was higher than SOA–SOAP in most of the areas except for the northeastern Europe, where the modeled OA concentration was strongly influenced by the boundary conditions. The VBSNEW increased the domain average OA by 26% and 63% compared to SOAP and VBS, respectively. Both POA and SOA were increased by VBSNEW, especially in winter when biomass burning is the dominant OA source. Comparison with observed PM2.5 in 432 AIRBASE stations in Europe showed that VBSNEW led to lowest mean bias (MB) and root-mean-square error (RMSE), which reduced MB by 1.3 and 0.7 μg m−3 compared to VBS and SOAP.
UR - https://www.scopus.com/pages/publications/85119837336
U2 - 10.1007/978-3-662-63760-9_1
DO - 10.1007/978-3-662-63760-9_1
M3 - 会议稿件
AN - SCOPUS:85119837336
SN - 9783662637593
T3 - Springer Proceedings in Complexity
SP - 3
EP - 9
BT - Air Pollution Modeling and its Application XXVII
A2 - Mensink, Clemens
A2 - Matthias, Volker
PB - Springer Science and Business Media B.V.
T2 - 37th International Technical Meeting on Air Pollution Modeling and its Application, ITM 2019
Y2 - 23 September 2019 through 27 September 2019
ER -