SP Tech Group

Smog is formed when sunlight and its heat react with the gases and fine particles released into the atmosphere through burnt fuels. The complex photochemical reactions between the precursors like volatile organic compounds, sulphur dioxide and nitrogen oxides release the ground level ozone and fine particles in the air.

Smog is often dependent upon the temperature. When it is the time for the temperature inversion, wind gets calm and creates the situation for the smog to get trapped over the area for few days. It becomes more severe in the areas which are farther away from the source of pollutant release