Soiling index is used for Quaity assessment of:-
AIR POLLUTION INDICATORS; CO2, CO, SO2, NO2, Air pollution index Soiling index Coefficient of haze SPM Overall best air pollution indicator/ Overall best chemical indicator is SO2. Best biological indicator of air pollution - LICHENS. Air pollution monitoring - CPCB.(Central pollution control board)
Water
Air
Soil
Noise
Air, Light, Sound, Housing, Radiation, Waste Disposal