Delhi PollutionA recent report released by World Health Organisation on Thursday has claimed ‘Delhi is no longer the world’s most polluted city’.

According to WHO’s urban air quality database, the capital now ranks 11th on the list of world’s most polluted cities.

The city was ranked as the most polluted city in the world in 2014, now that place has been taken by Iran.

Out of 20 most polluted cities, 10 are in India. Gwalior, Allahabad, Patna and Raipur are more polluted than Delhi, shows the report.

Delhi’s annual average of PM 2.5 readings are 12 times the WHO safe standard, and more than three times India’s standard.