Question

what is smog? Describe how it is harmful to us?

Answer 1

Smog is derived from two words i.e. smoke and fog which is also described as the type of fog having smoke or soot particles in it or a mixture of various gases with dust and water vapour and makes breathing difficult. It is a yellowish or blackish fog mainly formed by a mixture of air pollutants like nitrogen oxides, sulphur oxides and some other organic compounds that combine with sunlight to form ozone.
Sources of Smog are: emissions from vehicles, construction, open burning, incinerators, factories, lawnmowers, coal-fired power generation stations, diesel & gasoline vehicles, solvents, cleaners & oil paints, pesticides and through winds which carries pollutants.