Suspending particles in atmosphere is the important indicator to evaluate the environmental quality. Its spatial and temporal distribution can be obtained by means of lidar. The mass concentration and extinction of particles have a very good correlation. To estimate the vertical distribution of PM[EQUATION] (particulate matter with diameter less than or equal to 10 micrometer), the empirical relationship is established between the extinction and the mass concentration of PM[EQUATION] measured by TEOM in near ground layer. Combined with wind velocity in different heights which are measured by wind radar, particles transport flux to urban areas is calculated and the total amount of particles transport is estimated. The long-term continuous monitoring of important industrial source in Beijing is carried out, and the results are presented.