Characteristics of mass distributions of aerosol particle and its inorganic water-soluble ions in summer over a suburb farmland in Beijing

  • Zhao Peng 
  • Zhu Tong 
  • Liang Baosheng 
  • Hu Min 
  • Kang Ling 
  • Gong Jicheng 
Research Article


Agricultural activity is one of the most important sources of aerosol particles. To understand the mass distribution and sources of aerosol particles and their inorganic water-soluble ions in a suburb farmland of Beijing, particle samples were collected using a microorifice uniform deposit impactor (MOUDI) in the summer of 2004 in a suburb vegetable field. The distribution of the particles and their inorganic water-soluble ions in the diameter range of 0.18–18 μm were measured. The dominant fine particle ions were SO4 2−, NO3 , and NH4 +. The association of day-to-day variation of the concentration of these ions with temperature, humidity, and solar radiation suggested that they are formed by the reaction of NH3 released from the vegetable field with the acid species produced from photochemical reactions. Fine particle K+ is likely from vegetation emission and biomass burning. Coarse particles like Ca2+, Mg2+, NO3 , and SO4 2− are suggested to come from the mechanical process by which the soil particle entered the atmosphere, and from the reaction of the acid species at the surface of the soil particle. The results show that fertilizer and soil are important factors determining the aerosol particle over agricultural fields, and vegetable fields in suburban Beijing contribute significantly to the aerosol particle.


mass size distribution coarse particle fine particle source 


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Copyright information

© Higher Education Press and Springer-Verlag 2007

Authors and Affiliations

  • Zhao Peng 
    • 1
  • Zhu Tong 
    • 1
  • Liang Baosheng 
    • 1
  • Hu Min 
    • 1
  • Kang Ling 
    • 1
  • Gong Jicheng 
    • 1
  1. 1.State Key Joint Laboratory of Environment Simulation and Pollution Control, College of Environmental SciencesPeking UniversityBeijingChina

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