From the archive record
Delhi, the eighth-most populated city in the world, is also one of the most polluted cities in India. Out of all the metropolitans of India, Delhi has the highest volumes of particulate matter pollution. Environmental problems in Delhi are a major threat to the well-being of the city's people as well as the flora and fauna. Major pressure on the environment is caused by the overuse of scarce recourses especially water which is caused by overpopulation in the city as well as country. The increase of traffic on the road and the industry waste and dust are the main reasons of air pollution. The air pollution is also caused by the contribution from unclean engines in transportation, especially diesel-powered city buses and trucks, and 2-wheelers and 3-wheelers with two-stroke engines. The rive