WorldArrow icon
Arrow iconO'Higgins

Air quality in O'Higgins

Air quality index (AQI⁺) and PM2.5 air pollution in O'Higgins • 00:42, Apr 18

Live most polluted city ranking

Real-time O'Higgins most polluted city ranking

#CitiesAQI⁺ US
1
The national flag of Chile

Rancagua

91

2
The national flag of Chile

Placilla

60

3
The national flag of Chile

Rengo

8

Live cleanest city ranking

Real-time O'Higgins cleanest city ranking

#CitiesAQI⁺ US
1
The national flag of Chile

Rengo

8

2
The national flag of Chile

Placilla

60

3
The national flag of Chile

Rancagua

91

external link icon

Southeast Asia Air Quality Alert

Polluted skies over Cairo
external link icon

April 17, 2026: Cairo among top 10 most polluted cities in the world

Forest wrapped in a haze of smoke
external link icon

Wildfire Map Spotlight: Smoke Show Fire, Mississippi

Which is the most polluted city in O'Higgins?