Pakistan, Nov. 3 -- Bad air keeps Lahore placed on top of the most polluted cities of the world with Air Quality Index (AQI) reading 509 on Monday.

Indian capital city New Delhi ranked second with 221 on the list and Egypt's Cairo placed third with 201 AQI. The other world cities with worst air quality included Dhaka with 167 AQI, Shanghai 161 and Kolkata 158 on the air quality index.

According to reports, polluted air blowing from India's Amritsar and Attari increases AQI level in Lahore.

Officials said that the water being sprinkled with smoke guns in the city to keep the air pollution level down. "The AQI level could improve with increase in the wind speed in city by 11:00 am," officials said.

Provincial Minister Marriyum Aurangzeb...