Login
Air monitors
Fires
Air quality
Wind
World AQI Ranking
11:57, May 23
#
MAJOR CITY
US AQI
1
Riyadh , Saudi Arabia
166
2
Krasnoyarsk , Russia
165
3
Lima , Peru
157
4
Chengdu , China
137
5
Melbourne , Australia
136
6
Busan , South Korea
136
7
Kolkata , India
131
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
