No relief from pollution, toxic smog envelops Delhi

Residents in New Delhi woke up to dense smog on Sunday with pollution levels touching “hazardous” levels, triggering warnings that even healthy people were at risk of respiratory problems. Beginning in October, burning of stubble farmland around Delhi, along with vehicle and industrial emissions, and the lighting of firecrackers during Hindu festivals, combined to create a toxic haze that can hang over the city for months.