气候变化领域集成服务门户(CCPortal): Wintertime secondary organic aerosol formation in Beijing-Tianjin-Hebei (BTH): Contributions of HONO sources and heterogeneous reactions

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DOI	10.5194/acp-19-2343-2019
	Wintertime secondary organic aerosol formation in Beijing-Tianjin-Hebei (BTH): Contributions of HONO sources and heterogeneous reactions
	Xing L.; Wu J.; Elser M.; Tong S.; Liu S.; Li X.; Liu L.; Cao J.; Zhou J.; El-Haddad I.; Huang R.; Ge M.; Tie X.; Prévôt A.S.H.; Li G.
发表日期	2019
ISSN	16807316
起始页码	2343
结束页码	2359
卷号	19 期号:4
英文摘要	Organic aerosol (OA) concentrations are simulated over the Beijing-Tianjin-Hebei (BTH) region from 9 to 26 January 2014 using the Weather Research and Forecasting model coupled with chemistry (WRF-CHEM), with the goal of examining the impact of heterogeneous HONO sources on SOA formation and SOA formation from different pathways during wintertime haze days. The model generally shows good performance with respect to simulating air pollutants and organic aerosols against measurements in BTH. Model results show that heterogeneous HONO sources substantially enhance near-surface SOA formation, increasing the regional average near-surface SOA concentration by about 46.3 % during the episode. Oxidation and partitioning of primary organic aerosols treated as semi-volatile dominate SOA formation, contributing 58.9 % of the near-surface SOA mass in BTH. Irreversible uptake of glyoxal and methylglyoxal on aerosol surfaces constitutes the second most important SOA formation pathway during the episode, with the SOA contribution increasing from 8.5 % under non-haze conditions to 30.2 % under haze conditions. Additionally, direct emissions of glyoxal and methylglyoxal from residential sources contribute about 25.5 % of the total SOA mass on average in BTH. Our study highlights the importance of heterogeneous HONO sources and primary residential emissions of glyoxal and methylglyoxal to SOA formation over the BTH region in winter.. © 2019 Springer Verlag. All Rights Reserved.
语种	英语
scopus关键词	aerosol; atmospheric pollution; concentration (composition); haze; heterogeneity; oxidation; weather forecasting; winter; Beijing [Beijing (ADS)]; Beijing [China]; China; Hebei; Tianjin
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144622
作者单位	Key Laboratory of Aerosol Chemistry and Physics, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China; Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Villigen, 5232, Switzerland; State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences (BNLMS), Chinese Academy of Sciences, Beijing, China; CAS Center for Excellence in Quaternary Science and Global Change, Xi'an, China
推荐引用方式 GB/T 7714	Xing L.,Wu J.,Elser M.,et al. Wintertime secondary organic aerosol formation in Beijing-Tianjin-Hebei (BTH): Contributions of HONO sources and heterogeneous reactions[J],2019,19(4).
APA	Xing L..,Wu J..,Elser M..,Tong S..,Liu S..,...&Li G..(2019).Wintertime secondary organic aerosol formation in Beijing-Tianjin-Hebei (BTH): Contributions of HONO sources and heterogeneous reactions.Atmospheric Chemistry and Physics,19(4).
MLA	Xing L.,et al."Wintertime secondary organic aerosol formation in Beijing-Tianjin-Hebei (BTH): Contributions of HONO sources and heterogeneous reactions".Atmospheric Chemistry and Physics 19.4(2019).