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Air monitors
Fires
Air quality
Wind
World AQI Ranking
14:34, May 27
#
MAJOR CITY
US AQI
1
Kolkata , India
157
2
Wuhan , China
156
3
Santiago , Chile
153
4
Hangzhou , China
152
5
Dhaka , Bangladesh
145
6
Lima , Peru
137
7
Lahore , Pakistan
117
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
