Evolution of atmospheric age of particles and its implications for the formation of a severe haze event in eastern China

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Abstract 2.5) during haze events, but the evolution of atmospheric age remains unclear. In this study, the age-resolved University of California, Davis/California Institute of Technology (UCD/CIT) model was developed and applied to simulate the concentration and age distribution of PM2.5 during a severe regional haze episode in eastern China. The results indicated that PM2.5 concentrations in the North China Plain (NCP) gradually accumulated due to stagnant weather conditions during the beginning stage of the haze event. Accordingly, the atmospheric age of elemental carbon (EC), primary organic aerosol (POA), sulfate (SO 4 2 -), and secondary organic aerosol (SOA) gradually increased. The subsequent PM2.5 concentration growth was driven by the local chemical formation of nitrate (NO 3 - NO 3 - NO 3 - 2.5 concentrations and the average age of EC, POA, SO 4 2 -, and SOA in YRD. In contrast, the average age of NO 3 - 2.5 components during the regional haze event. The information can also be used for designing effective control strategies for different components of PM2.5.

Location: Deutsche Nationalbibliothek Frankfurt am Main

Extent: Online-Ressource

Language: Englisch

Bibliographic citation: Evolution of atmospheric age of particles and its implications for the formation of a severe haze event in eastern China ; volume:23 ; number:18 ; year:2023 ; pages:10563-10578 ; extent:16
Atmospheric chemistry and physics ; 23, Heft 18 (2023), 10563-10578 (gesamt 16)

Creator: Xie, Xiaodong
Hu, Jianlin
Qin, Momei
Guo, Song
Hu, Min
Ji, Dongsheng
Wang, Hongli
Lou, Shengrong
Huang, Cheng
Liu, Chong
Zhang, Hongliang
Ying, Qi
Liao, Hong
Zhang, Yuanhang

DOI: 10.5194/acp-23-10563-2023

URN: urn:nbn:de:101:1-2023092804261225213918

Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.

Last update: 14.08.2025, 10:55 AM CEST

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Associated

Xie, Xiaodong
Hu, Jianlin
Qin, Momei
Guo, Song
Hu, Min
Ji, Dongsheng
Wang, Hongli
Lou, Shengrong
Huang, Cheng
Liu, Chong
Zhang, Hongliang
Ying, Qi
Liao, Hong
Zhang, Yuanhang

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