Many measures can be undertaken for controlling the air pollution:
There should be separate areas for the industries and the residential houses. The industries should be established away from cities. This will reduce the respiratory and other diseases in animals due to industrial gases.
The inspection of vehicles should be done to know the amount of release of the harmful gases from the source and measures can be taken to reduce them.
Usage of biofuels should be encouraged. The biofuels do not release the harmful gases like the leaded fuels.
Usage of public transport will reduce the consumption of fuel and thereby, reduce air pollution.