Toxic smog shrouded the Indian capital as air quality plummeted to hazardous levels Thursday after tens of thousands of people set off a multitude of firecrackers to celebrate the major Hindu festival of Diwali.
Toxic smog shrouded the Indian capital as air quality plummeted to hazardous levels Thursday after tens of thousands of people set off a multitude of firecrackers to celebrate the major Hindu festival of Diwali.