In this infographic, we explore different types of air pollutants, sources of air pollution and key techniques used to monitor these compounds. The compound ozone, a known respiratory irritant, exists ...

From vehicular emissions to stubble burning, a look at the factors behind the capital's smoggy skies. Can't-Miss Play: T.J.

Air pollution is even more dangerous than previously thought, the World Health Organization (WHO) has warned, as it slashes maximum safe levels of key pollutants such nitrogen dioxide. An ...