Abstract：The correlation between aerosol parameters and PM2.5 were analyzed by using satellite and ground based remote sensing data. Meanwhile a method which can calculate volume concentration and aerosol optical depth (AOD) with diameter less than 2.5μm was presented and used to correct the volume concentration and AOD obtained from ground based remote sensing between March and September 2012. The results showed that a variety of aerosol remote sensing parameters such as AOD, volume and mass concentration etc. exhibited significant correlations with PM2.5. The correlations between ground based remote sensing parameters and PM2.5 were better than those between the satellite remote sensing parameters and PM2.5. The correlation coefficients between total AOD and PM2.5 decreased with wavelength increase. Correlations of the aerosol volume concentration and long wavelength AOD with PM2.5 increased significantly after the particle size correction.
