India, Nov. 7 -- Image Courtesy: Indian children attend a demonstration about air pollution in New Delhi, where air pollution poses a serious health risk. (Image Courtesy: Money Sharma/ AFP / Getty Images)

Pollution or air pollution is one of the most dangerous problems not only in India but also in the entire world. It refers to the contamination of the atmosphere by harmful chemicals or biological materials. Similarly the toxic level of air pollution in and around Delhi is creating quite a menace. Adding to the severity, the changing weather conditions have locked the pollutants in the air and made the situation worse. Experts have warned people that they may undergo dire consequences if the condition remains for long and discouraged t...