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Jinghan & Vivian. 4a1.

Monday, December 20, 2010

Reducing Air Pollution

Reducing Air Pollution
It is everyone's duty to reduce pollution and protect the environment. To overcome air pollution, the emission of air pollutants must be provided. 
Reducing Carbon Monoxide, Nitrogen Oxide and Unburned Hydrocarbons 


Carbon monoxide, nitrogen oxides and unburned hydrocarbons emissions from motor vehicles can be reduced by installing catalytic converters to the exhausts. 

A catalytic converter
It converts carbon monoxide to carbon dioxide; nitrogen oxides to nitrogen and unburned hydrocarbons to water and carbon dioxide.



Reducing Sulfur Dioxide and Nitrogen Oxides Emissions 
Sulfur dioxide and nitrogen oxides can be removed from waste gases by treating them with calcium hydroxide, After that, the waste gases are released into the atmosphere. 


Ways to reduce emission of sulfur dioxide and nitrogen oxides


 Using cleaner petrol and diesel with no sulfur


Using natural gas for factories and power stations 


Treating waste gases before releasing them into the atmosphere

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