Two measurements, light extinction and scattering can be measured in a specified local area by transmissometers and nephelometers, respectively. By the co-relation analysis of PM10 or PM2.5 mass and chemical elements with the light measurements, the IMPROVE particulates a contribution of aerosol species to light extinction. As a result, scattering and absorption efficiencies to the visibility impairment have been developed from the aero-optical observed measurement so that the estimated visibility can be possible. In this paper, we represent the aerosol condition of specified region by the scenic view on-line network.
