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Air quality
Wind
World AQI Ranking
20:22, May 28
#
MAJOR CITY
US AQI
1
Santiago , Chile
178
2
Riyadh , Saudi Arabia
154
3
Johannesburg , South Africa
149
4
Delhi , India
144
5
Dhaka , Bangladesh
138
6
Kathmandu , Nepal
120
7
Kolkata , India
116
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
