Advances in Atmospheric Sciences

, Volume 1, Issue 1, pp 76–83 | Cite as

Deficit of particulate chlorine and the nonacid rain in Beijing

  • Wang Mingxing 


The acidity of precipitation in both clean and polluted areas was calculated for atmospheric CO2 and SO2 in equilibrium with water. pH values of 5 and 4.5 were obtained. In Beijing the pH value is increased due to particulate chlorine reactivity and rainout of CaO in the atmosphere. The increase of pH value is related to liquid water content in cloud and the elemental concentrations of particulate Cl and Ca in the atmosphere. This mechanism may help to explain the nonacid rain observed in Beijing where the air pollution problem is serious, as viewed by SO2 concentration and particulate burden in the atmosphere.


Aerosol Particle Acid Rain Rainfall Amount Rain Water Polluted Area 
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Copyright information

© Advances in Atmospheric Sciences 1984

Authors and Affiliations

  • Wang Mingxing 
    • 1
  1. 1.Institute of Atmospheric PhysicsAcademia SinicaBeijing

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