Economic losses were in the billions. Pollution takes many forms in India, including the use of poorly-ventilated stoves and open fires for cooking inside dwellings. Photo by Mark Katzman. Air ...

The construction sector has emerged as a significant yet often overlooked contributor to worsening air quality in India.

Delhi gets all the attention, but other parts of northern India are also dealing with toxic air. Toxic, deadly, poisonous - these words are back in the headlines as Delhi’s pollution spikes again.

NEW DELHI: India has tightened restrictions aimed at helping the public cope with pollution twice in 24 hours for New Delhi and its surrounding regions after a deterioration in air quality.