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JOURNAL OF DESERT RESEARCH ›› 2003, Vol. 23 ›› Issue (5): 560-564.

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Comparison of Wet Removal Efficiency Between Snow and Rain to Aerosol Particles in Urumqi Region

LI xia1, YANG Qing1, WU Yan2   

  1. 1. Institute of Desert Meteorology, China Meteorological Administration, Urumqi 830002, China;
    2. Xinjiang Center of Environmental Meteorology, Urumqi 830002, China
  • Received:2002-09-15 Revised:2002-10-20 Online:2003-10-20 Published:2003-10-20

Abstract: According to hourly observations to atmospheric aerosol particles concentration of SO2、NO2 and PM10 in 2002,statistics and analysis about the wet removal efficiency of precipitation to the three kinds of aerosols concentration in Winter and in Summer were performed respectively.The result roughly showed that minim precipitation makes air pollution(aerosols concentration) increase in winter and decrease in summer.The wet removal efficiency of 1mm snowfall was higher than that of 1mm rainfall on condition that aerosols particles concentration in summer is evidently higher than that in winter.The variation of aerosol particles concentration in rainy day had apparent relation to the aerosols concentration a day before the rainy day.

Key words: aerosol particles concentration, daily mean concentration, wet removal efficiency, Urumqi City

CLC Number: