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Air monitors
Fires
Air quality
Wind
World AQI Ranking
03:13, May 24
#
MAJOR CITY
US AQI
1
Lima , Peru
155
2
Tehran , Iran
152
3
Dubai , United Arab Emirates
121
4
Kathmandu , Nepal
117
5
Chengdu , China
117
6
Krasnoyarsk , Russia
113
7
Beijing , China
112
SEE FULL RANKING
Good
Moderate
Unhealthy for sensitive groups
Unhealthy
Very unhealthy
Hazardous
,
Units
°C
°F
km/h
mp/h
US AQI
CN AQI
mbar
Hg
Most polluted cities among major cities in the world
