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Optical Properties of Aerosols and Implications for RadiativeEffects in Beijing During the Asia-Pacific EconomicCooperation Summit 2014
Zhou,YQ(Zhou,Yaqing)1,2; Wang,QY(Wang,Qiyuan)1; Huang,RJ(Huang,Rujin)1; Liu,SX(Liu,Suixin)1; Tie,XX(Tie,Xuexi)1; Su,XL(Su,Xiaoli)1; Niu,XY(Niu,Xinyi)3; Zhao,ZZ(Zhao,Zhuzi)1; Ni,HY(Ni,Haiyan)1,2; Wang,M(Wang,Meng)1,2; Zhang,YG(Zhang,Yonggang)1; Cao,JJ(Cao,Junji)1,4; Huang,Rujin
2017-09-27
Source PublicationJournal of Geophysical Research: Atmospheres
Volume122Issue:18Pages:10119-10132
Subtype期刊论文
AbstractAn intensive measurement campaign was conducted in Beijing during the Asia‐Pacific Economic Cooperation (APEC) Summit 2014 to investigate the effectiveness of stringent emission controls on aerosol optical properties and direct radiative forcing (DRF). Average values of PM2.5, light scattering (bscat), and light absorption (babs) coefficients decreased by 40, 64, and 56%, respectively, during the APEC control period compared with noncontrol periods. For the APEC control period, the PM2.5 mass scattering and absorption efficiencies were both smaller than the noncontrol period by a factor of ~2. Calculations based on a revised IMPROVE method and linear regression showed that sulfate, nitrate, organic matter, elemental carbon, and fine soil contributed comparably to the light extinction coefficient (bext) in both periods, but the bext values were 27–64% lower during the APEC period. A positive matrix factorization receptor model showed that bext from two secondary aerosol sources, biomass burning, traffic‐related emissions, and coal burning decreased by 26–87% during the APEC control period. The average DRF calculated from the Tropospheric Ultraviolet and Visible radiation model was −11.9 and −4.6 W m−2 at the surface during the noncontrol and APEC control periods, respectively, suggesting an overall cooling effect. The reduction of DRF from each emission source ranged from ~30–80% during the APEC control period. The results suggest that the pollution control measures implemented for APEC substantially reduced air pollution and could help mitigate the cooling effects of aerosols at the surface in Beijing.
KeywordAerosol Optical Properties Chemical Species Source Apportionment Direct Radiative Forcing
DOI10.1002/2017jd026997
Indexed BySCI
Project NumberXDB05060500 ; XDA05100401 ; 2013FY112700 ; 41503118
Language英语
Funding Organizationprojects from “Strategic PriorityResearch Program” of the ChineseAcademy of Science ; projects from “Strategic PriorityResearch Program” of the ChineseAcademy of Science ; projects from Ministry of Science andTechnology ; projects from Ministry of Science andTechnology ; National Natural Science Foundation ofChina ; National Natural Science Foundation ofChina
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5609
Collection粉尘与环境研究室
Corresponding AuthorHuang,Rujin
Affiliation1.State Key Laboratory of Loess and Quaternary Geology, Key Laboratory of Aerosol Chemistry and Physics, Institute of EarthEnvironment, Chinese Academy of Sciences, Xi’an, China
2.University of Chinese Academy of Sciences, Beijing, China
3.School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an, China
4.Institute of GlobalEnvironmental Change, Xi’an Jiaotong University, Xi’an, China
Recommended Citation
GB/T 7714
Zhou,YQ,Wang,QY,Huang,RJ,et al. Optical Properties of Aerosols and Implications for RadiativeEffects in Beijing During the Asia-Pacific EconomicCooperation Summit 2014[J]. Journal of Geophysical Research: Atmospheres,2017,122(18):10119-10132.
APA Zhou,YQ.,Wang,QY.,Huang,RJ.,Liu,SX.,Tie,XX.,...&Huang,Rujin.(2017).Optical Properties of Aerosols and Implications for RadiativeEffects in Beijing During the Asia-Pacific EconomicCooperation Summit 2014.Journal of Geophysical Research: Atmospheres,122(18),10119-10132.
MLA Zhou,YQ,et al."Optical Properties of Aerosols and Implications for RadiativeEffects in Beijing During the Asia-Pacific EconomicCooperation Summit 2014".Journal of Geophysical Research: Atmospheres 122.18(2017):10119-10132.
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