Abstract：In view of the larger deflection of the air particles concentration calculated by existing calculation models,estimating the quasi measured concentration of particles(produced by coal-fired power plants in Taiyuan city) from PM₁₀ actual monitoring values of Taiyuan routine monitoring, the air particle concentration were calculated by the AERMOD and CALPUFF model for source of coal-fired power plants, the calculation concentration and measured air concentration of the particles were compared and evaluated. The results showed that in urban areas,the better calculation model of air particle concentration is AERMOD mode.

Keywords: air particles concentration; AERMOD model; CALPUFF model; comparative analysis