Breathe Hard:  The cities with the worst air pollution

Rankings: iqair.com (25 October 2023)

Chengdu, China (AQI: 176) Chengdu faces significant pollution challenges due to industrial activities and urban development.

Delhi, India (AQI: 168) Delhi consistently ranks as one of the most polluted cities globally.

Istanbul, Turkey (AQI: 163) Istanbul's pollution problems include air pollution from heavy traffic and industrial sources.

Wuhan, China (AQI: 162) Industrial emissions and high population density contribute to poor air quality in Wuhan.

Lahore, Pakistan (AQI: 159) The burning of crop residue and industrial emissions are contributing factors for pollution in Lahore.

Baghdad, Iraq (AQI: 155) Baghdad deals with pollution from various sources, including vehicular emissions and industrial activities.

Karachi, Pakistan (AQI: 153) Karachi grapples with air pollution due to high traffic density, industrial emissions, and waste management issues.

Hanoi, Vietnam (AQI: 153) Hanoi faces air pollution challenges, especially concerning vehicular emissions and industrial sources.

Jakarta, Indonesia (AQI: 153) Jakarta struggles with air pollution caused by traffic congestion and industrial emissions.

Mumbai, India (AQI: 152) The city suffers from air pollution caused by heavy traffic and industrial operations, with the AQI reaching as high as 160 on Monday (23 October).