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Primary emissions versus secondary formation of fine particulate matter in the most polluted city (Shijiazhuang) in North China
Huang, RJ (Huang, Ru-Jin)1,2; Wang, YC (Wang, Yichen)1,2; Cao, JJ (Cao, Junji)1,2; Lin, CS (Lin, Chunshui)1,2,3,4; Duan, J (Duan, Jing)1,2; Chen, Q (Chen, Qi)5; Li, YJ (Li, Yongjie)6; Gu, YF (Gu, Yifang)1,2; Yan, J (Yan, Jin)1,2; Xu, W (Xu, Wei)1,2,3,4; Frohlich, R (Frohlich, Roman)7; Canonaco, F (Canonaco, Francesco)7; Bozzetti, C (Bozzetti, Carlo)7; Ovadnevaite, J (Ovadnevaite, Jurgita)3,4; Ceburnis, D (Ceburnis, Darius)3,4; Canagaratna, MR (Canagaratna, Manjula R.)8; Jayne, J (Jayne, John)8; Worsnop, DR (Worsnop, Douglas R.)8; El-Haddad, I (El-Haddad, Imad)7; Prevot, ASH (Prevot, Andre S. H.)7; O'Dowd, CD (O'Dowd, Colin D.)3,4
2019-02-21
Source PublicationATMOSPHERIC CHEMISTRY AND PHYSICS
Volume19Issue:4Pages:2283-2298
Contribution Rank1
AbstractParticulate matter (PM) pollution is a severe environmental problem in the Beijing-Tianjin-Hebei (BTH) region in North China. PM studies have been conducted extensively in Beijing, but the chemical composition, sources, and atmospheric processes of PM are still relatively less known in nearby Tianjin and Hebei. In this study, fine PM in urban Shijiazhuang (the capital of Hebei Province) was characterized using an Aerodyne quadrupole aerosol chemical speciation monitor (Q-ACSM) from 11 January to 18 February in 2014. The average mass concentration of non-refractory submicron PM (diameter < 1 mu m, NR-PM1) was 178 +/- 101 mu g m(-3), and it was composed of 50% organic aerosol (OA), 21% sulfate, 12% nitrate, 11% ammonium, and 6% chloride. Using the multilinear engine (ME-2) receptor model, five OA sources were identified and quantified, including hydrocarbon-like OA from vehicle emissions (HOA, 13 %), cooking OA (COA, 16 %), biomass burning OA (BBOA, 17 %), coal combustion OA (CCOA, 27 %), and oxygenated OA (OOA, 27 %). We found that secondary formation contributed substantially to PM in episodic events, whereas primary emissions were dominant (most significant) on average. The episodic events with the highest NR-PM1 mass range of 300-360 mu g m(-3) were comprised of 55% of secondary species. On the contrary, a campaign-average low OOA fraction (27 %) in OA indicated the importance of primary emissions, and a low sulfur oxidation degree (F-SO4) of 0.18 even at RH > 90% hinted at insufficient oxidation. These results suggested that in Shijiazhuang in wintertime fine PM was mostly from primary emissions without sufficient atmospheric aging, indicating opportunities for air quality improvement by mitigating direct emissions. In addition, secondary inorganic and organic (OOA) species dominated in pollution events with high-RH conditions, most likely due to enhanced aqueous-phase chemistry, whereas primary organic aerosol (POA) dominated in pollution events with low-RH and stagnant conditions. These results also highlighted the importance of meteorological conditions for PM pollution in this highly polluted city in North China.
Indexed BySCI ; SCIE
Language英语
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10950
Collection粉尘与环境研究室
Corresponding AuthorHuang, RJ (Huang, Ru-Jin)
Affiliation1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China;
2.Chinese Acad Sci, CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China;
3.Natl Univ Ireland Galway, Sch Phys, Galway, Ireland;
4.Natl Univ Ireland Galway, Ctr Climate & Air Pollut Studies, Galway, Ireland;
5.Peking Univ, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100871, Peoples R China;
6.Univ Macau, Fac Sci & Technol, Dept Civil & Environm Engn, Taipa, Macau, Peoples R China;
7.Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland;
8.Aerodyne Res Inc, Billerica, MA USA
Recommended Citation
GB/T 7714
Huang, RJ ,Wang, YC ,Cao, JJ ,et al. Primary emissions versus secondary formation of fine particulate matter in the most polluted city (Shijiazhuang) in North China[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(4):2283-2298.
APA Huang, RJ .,Wang, YC .,Cao, JJ .,Lin, CS .,Duan, J .,...&O'Dowd, CD .(2019).Primary emissions versus secondary formation of fine particulate matter in the most polluted city (Shijiazhuang) in North China.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(4),2283-2298.
MLA Huang, RJ ,et al."Primary emissions versus secondary formation of fine particulate matter in the most polluted city (Shijiazhuang) in North China".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.4(2019):2283-2298.
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