As per the survey report by Greenpeace called ‘Airpocalypse II’ the state with highest air pollution is:
An NGO named Greenpeace has come out with a report on air pollution in India named ‘Airpocalypse II’. According to the report, Uttar Pradesh is the most polluted state in India in terms of air quality. 15 of its cities are among the top 30 polluted cities of India. New Delhi was the most polluted city of India.