Nitrogen oxide contributes to acidity in precipitation and production of photochemical smog. Nitrogen oxide is also dangerous it causes serious illness and deaths even if the exposure to NO2 is short. As one can surely see these types of air pollutants are harmful to our atmosphere, environment and personal health. Factory owners can help prevent all of these effects. Researchers have found different ways to remove these pollutants from the air.
Primary air is introduced under pressure in a tube below and coaxial with the stack.
Within this device different air mixtures provide means for complete combustion of the vented gases with low emission of smoke and light. Another method wherein gases contaminate with vapors from volatile organic liquids are recovered by containing the vapor- containing gas in an absorbed tower with a sponge oil which absorbs the vapors. A method has been discovered for removing nitrogen oxides from gases. Sittig 565 Another air pollutant which is able to be reduced is carbon monoxide. Factories simply have to change their coal or oil combustions to natural gas combustion.