WorldArrow icon
Arrow iconWestern

Air quality in Western

Air quality index (AQI⁺) and PM2.5 air pollution in Western • 16:36, May 21

Live most polluted city ranking

Real-time Western most polluted city ranking

#CitiesAQI⁺ US
1
The national flag of Sri Lanka

Nugegoda

52

2
The national flag of Sri Lanka

Negombo

44

3
The national flag of Sri Lanka

Battaramulla

36

4
The national flag of Sri Lanka

Colombo

28

5
The national flag of Sri Lanka

Gampaha

11

Live cleanest city ranking

Real-time Western cleanest city ranking

#CitiesAQI⁺ US
1
The national flag of Sri Lanka

Gampaha

11

2
The national flag of Sri Lanka

Colombo

28

3
The national flag of Sri Lanka

Battaramulla

36

4
The national flag of Sri Lanka

Negombo

44

5
The national flag of Sri Lanka

Nugegoda

52

Polluted skies of Ulaanbaatar
external link icon

May 21, 2026: Ulaanbaatar among top 10 most polluted cities in the world

external link icon

Wildfire map spotlight: Bain Fire, California

Smoke rising from a dense forest
external link icon

Wildfire map spotlight: Southwest Kansas wildfires

Which is the most polluted city in Western?