Toxic smog covers New Delhi as winter nears

A toxic smog shrouded the Indian capital on Nov 5, driving air quality in some areas into the "severe" range ahead of winter, when cold air traps pollutants and brings a spike in respiratory illnesses.

- 

The mix of smoke, emissions and dust is an annual problem for the authorities in New Delhi, with vehicles, construction dust, and smoke from farm fires in the adjoining northern states of Punjab and Haryana among the major contributors.

"The outlook for the subsequent six days: the air quality is likely to be in the 'very poor' to 'severe' category," said the Earth Sciences Ministry.