Air Pollution

Air pollution means the ways in which the air is polluted. Air is the most important element of
human environment. Man can not live a single moment without air. But we donot think that it is we
who pollute this most vital element. Clean air is essential for life. Air is polluted in many ways. For
example smoke pollutes air. Man makes fires to cook his food, to make bricks burns refuse, melts
pitch for road construction and burns wood. All these things produce heavy smoke and this smoke
pollutes air. The another example is that railway engines, power houses, mills and factories use
coal and oil. Moreover, buses trucks and cars use petrol and diesel oil. Again all these things create
smoke and cause air pollution. Furthermore, the most serious air pollution occurs in big industrial
areas where there are many mills and factories. Again serious air pollution also occurs in big cities
where there are many buses, trucks and cars plying the street everyday. Sometimes men in big
industrial area become so sick by inhaling polluted air that they cannot be cured. So proper
measures and steps should be taken to prevent air pollution.