No living can live without air. But it is being polluted now in many ways. Firstly, it is constantly being polluted by smoke from mills, factories and from carbon-mono-oxide gases emitted by motor vehicles. Secondly, big cities have thousands of cars, buses, and trucks plying all day long. These vehicles burn diesel and petrol oil which produce a lot of smoke and pollute the air. Especially, in the cities and big industrial areas, serious air pollution takes place. Thirdly, overpopulation is another cause of air pollution in our country. Fourthly, railway engines and powerhouses burn coal and oil which produce smoke and air is polluted. So, it is high time to take proper steps to plant trees everywhere and to control the haphazard growth of industries. To make the air fresh, the destruction of trees must be prevented. In fact, all possible steps should be taken by all concerned to stop air pollution.
Air is life and one of the essential elements of our environment. It is part and parcel of our existence and all other living beings. But is a matter of great sorrow that nowadays we are polluting air seriously. Smoke from our kitchen, vehicles, Brickfields, melting pitch for road construction etc. pollute the air. Serious air pollution occurs in industrial areas where gas fumes come out from mills and factories. Sometimes leakage of poisonous gas causes serious sickens to the workers and even their death. Air pollution is a great threat to our health. To protect our health from air pollution, proper measures should be taken. If not, national health can never be saved. Our joint efforts and consciousness can prevent air pollution.