Optical Properties of Aerosols and Implications for RadiativeEffects in Beijing During the Asia-Pacific EconomicCooperation Summit 2014

doi:10.1002/2017jd026997

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 粉尘与环境研究室

	Optical Properties of Aerosols and Implications for RadiativeEffects in Beijing During the Asia-Pacific EconomicCooperation Summit 2014
	Zhou,YQ(Zhou,Yaqing)1,3; Wang,QY(Wang,Qiyuan)3; Huang,RJ(Huang,Rujin)3; Liu,SX(Liu,Suixin)3; Tie,XX(Tie,Xuexi)3; Su,XL(Su,Xiaoli)3; Niu,XY(Niu,Xinyi)4; Zhao,ZZ(Zhao,Zhuzi)3; Ni,HY(Ni,Haiyan)1,3; Wang,M(Wang,Meng)1,3
刊名	Journal of Geophysical Research: Atmospheres
	2017-09-27
卷号	122 期号:18 页码:10119-10132
关键词	Aerosol Optical Properties Chemical Species Source Apportionment Direct Radiative Forcing
DOI	10.1002/2017jd026997
文献子类	期刊论文
英文摘要	An 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.
项目编号	XDB05060500 ; XDA05100401 ; 2013FY112700 ; 41503118
语种	英语
资助机构	projects 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
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5609]
专题	地球环境研究所_粉尘与环境研究室
通讯作者	Huang,Rujin
作者单位	1.University of Chinese Academy of Sciences, Beijing, China 2.Institute of GlobalEnvironmental Change, Xi’an Jiaotong University, Xi’an, China 3.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 4.School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an, China
推荐引用方式 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.