Control of Air Pollution

(a)By separating pollutions from harmless gases
(b) By converting pollutants to innocuous products before their release atmosphere. Techniques now-a-days applied is using cyclone collectors or electrostatic precipitators.
(c) Switching from coal to gas fuel.
(d) Growing plants capable of fixing CO, (Phaseolus vulgaris, Daucus carota, Coleus blumli etc.) NO and other gaseous pollutions (Vitis, Pinus, Junipers, Quercus, Pyrus, Ribes)