Arjoo Yadav's Key Ideas from Fundamentals of Air Pollution
by Richard W. Boubel

Sometimes, pollutants may come from natural sources like smoke and dust arising from forest fires or volcanic eruptions. Pollutants are also added to the atmosphere by certain human activities, like factories, power plants, automobile exhaust and burning of firewood and dung cakes .

If the vehicles registered in Delhi are lined up one after the other, the total length would be nearly equal to the combined lengths of the two longest rivers in the world, Nice and Amazon!the

You might have read in the newspapers that respiratory problems amongst children are rising day by day. Many respiratory problems are Caused by air pollution . Have you noticed how rapidly the number of vehicles is increasing in our cities?

Vehicles produce high levels of pollutants like carbon monoxide,carbon dioxide, nitrogen oxides and smoke. carbon monoxide is produced from incomplete burning of fuels such as petrol and diesel it is a poisonous gas it reduces the oxygen carrying capacity of the blood.

Other kinds of pollutants are chloroflurocarbons (CFCs] which are used in refrigerators, air conditioners,and aerosol sprays.CFCs damage the ozone layer of the atmosphere . Recall that the ogone layer protects us from harmful ultraviolet ultraviolet rays of the sun.