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Air monitors
Fires
Air quality
Wind
World AQI Ranking
06:26, May 25
#
MAJOR CITY
US AQI
1
Dubai , United Arab Emirates
299
2
Tehran , Iran
259
3
Riyadh , Saudi Arabia
207
4
Lima , Peru
153
5
Hanoi , Vietnam
152
6
Delhi , India
151
7
Chengdu , China
138
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
