Indian cities have dirtiest air; Delhi at the top, says WHO
Thirteen of the dirtiest 20 cities were Indian, with New Delhi, Patna, Gwalior and Raipur in the top four spots.
Publication Date:
08/05/2014
Thirteen of the dirtiest 20 cities were Indian, with New Delhi, Patna, Gwalior and Raipur in the top four spots.