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Characteristics of heavy aerosol pollution during the 2012-2013 winter in Beijing, China
Quan, JN (Quan, Jiannong)[ 1,2 ]; Tie, XX (Tie, Xuexi)[ 3,4 ]; Zhang, Q (Zhang, Qiang)[ 1,2 ]; Liu, Q (Liu, Quan)[ 1,2 ]; Li, X (Li, Xia)[ 1,2 ]; Gao, Y (Gao, Yang)[ 1,2 ]; Zhao, DL (Zhao, Delong)[ 1,2 ]
2014-05-01
Source PublicationATMOSPHERIC ENVIRONMENT
Volume88Pages:83-89
Subtype期刊论文
Abstract

A comprehensive measurement was carried out to analyze the heavy haze events during 2012-2013 winter in Beijing. The measured variables include some important meteorological parameters, such wind directions, wind speeds, relative humidity (RH), planetary boundary layer (PBL), solar radiation, and visibility. The aerosol composition and concentrations (including particular matters (PM2.5), nitrate (NO3), sulfate (SO4), ammonium (NH4)) as well as their gas-phase precursors (including nitrogen oxides (NOx) and sulfur dioxide (SO2)) were analyzed during the period between Nov. 16, 2012 and Jan. 15, 2013. The results show that the hourly mean concentrations of PM2.5 often exceeded 200 pg/m(3), with a maximum concentration of 600 ig/m(3) on Jan. 13, 2013. The relative humidity was increased during the haze events, indicating that both aerosol concentrations and RH had important effect on the reduction of visibility, causing the occurrence of the haze events. Because the wind speeds were generally low (less than 1 m/s) during the haze event, the vertical dispersion and the PBL heights were very important factors for causing the strong variability of aerosol concentrations. This study also finds that under the lower visibility condition, the conversion from the gas-phase of NOx and SO2 to the particle phase of NO3 and SO4 were higher than the values under the higher visibility condition. Because the lower visibility condition was corresponding to the lower photochemical activity than the higher visibility condition, the higher conversion from gas phase to particle phase in the lower visibility condition indicated that there was important heterogeneous formation of NO3 and SO4 during the heavy haze events.

KeywordAerosol Fog And Haze Low Visibility Beijing Pbl Height
DOI10.1016/j.atmosenv.2014.01.058
Indexed BySCI ; EI
Language英语
Citation statistics
Cited Times:137[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9775
Collection粉尘与环境研究室
Corresponding AuthorQuan, JN (Quan, Jiannong)[ 1,2 ]; Tie, XX (Tie, Xuexi)[ 3,4 ]
Affiliation1.Beijing Weather Modification Office, Beijing, China;
2.Beijing Key Laboratory of Cloud, Precipitation and Atmospheric Water Resources, Beijing, China;
3.Key Laboratory of Aerosol Science and Technology, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xian, China;
4.National Center for Atmospheric Research, Boulder, CO, USA
Recommended Citation
GB/T 7714
Quan, JN ,Tie, XX ,Zhang, Q ,et al. Characteristics of heavy aerosol pollution during the 2012-2013 winter in Beijing, China[J]. ATMOSPHERIC ENVIRONMENT,2014,88:83-89.
APA Quan, JN .,Tie, XX .,Zhang, Q .,Liu, Q .,Li, X .,...&Zhao, DL .(2014).Characteristics of heavy aerosol pollution during the 2012-2013 winter in Beijing, China.ATMOSPHERIC ENVIRONMENT,88,83-89.
MLA Quan, JN ,et al."Characteristics of heavy aerosol pollution during the 2012-2013 winter in Beijing, China".ATMOSPHERIC ENVIRONMENT 88(2014):83-89.
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