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Air monitors
Fires
Air quality
Wind
World AQI Ranking
14:15, Aug 12
#
MAJOR CITY
US AQI
1
Riyadh , Saudi Arabia
337
2
Tehran , Iran
170
3
Kuwait City , Kuwait
159
4
Hanoi , Vietnam
133
5
Nur-Sultan , Kazakhstan
121
6
Busan , South Korea
120
7
Santiago , Chile
110
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
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Most polluted cities among major cities in the world
