1. Fett V (1961) Atmospheric dust. Publishing House of Foreign Literature, Moscow (In Russian)
2. Fuchs HA (1960) The mechanics of aerosols (trans: Gu Zhenchao). Science Press, Beijing (In Chinese)
3. Tsziri A (1973) Measurement method of weight and humidity for aerosol. J Jpn Air Clean Assoc 12(4):20–53 (In Japanese)
4. Harada A (1973) Background pollution of atmosphere, Technical reports of the Meteorological Research Institute, Japan (In Japanese)
5. Beijing Evening News (1998) p 15, 4 Apr 1998 (In Chinese)