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JOURNAL OF DESERT RESEARCH  2013, Vol. 33 Issue (4): 1138-1143    DOI: 10.7522/j.issn.1000-694X.2013.00161
Weather and Climate     
Influence of A Sand-dust Weather Process on Aerosol Mass Concentration and Number Concentration in Tianjin, China
YAO Qing, CAI Zi-ying, HAN Su-qin, MU Huai-bin
Tianjin Institute of Meteorological Science, Tianjin 300061, China
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Abstract  

Based on aerosol mass concentration and number concentration data and  meteorological data at different heights and backward trajectory analysis, the influence of a sand-dust weather process from April 30 to May 1 in 2011 on aerosol concentration in Tianjin were analyzed. The results indicated as follows. In the mist process before sand-dust weather, PM1 accounted for about 96% of aerosol mass concentration and 99.9% of aerosol number concentration; PM1-2.5, PM2.5-10 and PM10-100 accounted for about 6.5%, 2.5% and 0.1% respectively of total aerosol number concentration in the first floating dust process,11.3%,2.6% and 0.01% respectively in the second floating dust process; the mass concentration and number concentration of fine aerosol under two floating dust processes were obviously different because of the increase of the ratio of fine aerosol, which resulted in change of aerosol property.

Key words:  sand-dust      floating dust      aerosol number concentration      vertical distribution      Tianjin     
Received:  16 April 2012      Published:  15 June 2012
ZTFLH:  X513  

Cite this article: 

YAO Qing, CAI Zi-ying, HAN Su-qin, MU Huai-bin. Influence of A Sand-dust Weather Process on Aerosol Mass Concentration and Number Concentration in Tianjin, China. JOURNAL OF DESERT RESEARCH, 2013, 33(4): 1138-1143.

URL: 

http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00161     OR     http://www.desert.ac.cn/EN/Y2013/V33/I4/1138

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