List some devices which control air pollution?
class 12th biology sample paper
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Air pollution can be controlled by following methods :
1) Electrostatic precipitator - They are very efficient devices which removes 99% of particulates present in industrial and thermal power plant exhausts.
2)Catalytic Converters - They are fitted in auto mobiles for reducing emission of gases. vehicles equipped with this should use unleaded petrol because lead in the petrol inactivate the catalyst.
3) Scrubber - It is used for removing gases like sulphur dioxide. in a scrubbr the exhaused is passed through spray of water and lime.
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