Analysis of Inhalable Particles Pollution in theAtmosphere in Beijing Area

By analyzing the PM_(10) monitoring data from July 2002 to June 2003 of over 20 sites,the average concentration level as well as the regional distribution features of PM_(10) in Beijing was obtained.It was shown that the pollution in satellite towns of suburb districts ties that in urban area,that the air in southwest and south regions is more polluted,and that the background concentration of the whole Beijing area is relatively high,having reached 75% of the national standard for annual concentration limit.The analysis results could provide basic information and suggestion for further study on particles in the atmosphere.