Air Quality
Air Monitors
Air Purifiers
Face Masks
For Business
News
Support
Sign in
Air Quality
Air Monitors
Air Purifiers
Face Masks
For Business
News
Support
World AQI Ranking
14:02, Apr 20
#
MAJOR CITY
US AQI
1
Kathmandu , Nepal
157
2
Kolkata , India
152
3
Chengdu , China
151
4
Hanoi , Vietnam
151
5
Mexico City , Mexico
146
6
Bangkok , Thailand
141
7
Doha , Qatar
117
SEE FULL RANKING
Become a citizen scientist
Get a monitor and contribute air quality data in your city.
Cart
×
Your cart is empty
Most polluted cities among major cities in the world