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Wintertime secondary organic aerosol formation in Beijing-Tianjin-Hebei (BTH): contributions of HONO sources and heterogeneous reactions
Xing, L (Xing, Li)1,4; Wu, JR (Wu, Jiarui)1,4; Elser, M (Elser, Miriam)2; Tong, SR (Tong, Shengrui)3; Liu, SX (Liu, Suixin)1,4; Li, X (Li, Xia)1,4; Liu, L (Liu, Lang)1,4; Cao, JJ (Cao, Junji)1,4; Zhou, JM (Zhou, Jiamao)1,4; El-Haddad, I (El-Haddad, Imad)2; Huang, RJ (Huang, Rujin)1,4; Ge, MF (Ge, Maofa)3; Tie, XX (Tie, Xuexi)1,4; Prevot, ASH (Prevot, Andre S. H.)2; Li, GH (Li, Guohui)1,4
2019-02-22
Source PublicationATMOSPHERIC CHEMISTRY AND PHYSICS
Volume19Issue:4Pages:2343-2359
Contribution Rank1
AbstractOrganic 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.
Indexed BySCI ; SCIE
Language英语
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10948
Collection粉尘与环境研究室
Corresponding AuthorCao, JJ (Cao, Junji); Li, GH (Li, Guohui)
Affiliation1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, SKLLQG, Xian, Shaanxi, Peoples R China;
2.Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland;
3.Chinese Acad Sci, Inst Chem, BNLMS, State Key Lab Struct Chem Unstable & Stable Speci, Beijing, Peoples R China;
4.CAS Ctr Excellence Quaternary Sci & Global Change, Xian, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Xing, L ,Wu, JR ,Elser, M ,et al. Wintertime secondary organic aerosol formation in Beijing-Tianjin-Hebei (BTH): contributions of HONO sources and heterogeneous reactions[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(4):2343-2359.
APA Xing, L .,Wu, JR .,Elser, M .,Tong, SR .,Liu, SX .,...&Li, GH .(2019).Wintertime secondary organic aerosol formation in Beijing-Tianjin-Hebei (BTH): contributions of HONO sources and heterogeneous reactions.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(4),2343-2359.
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):2343-2359.
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