SmogRank / Countries / Sri Lanka / Western Province
Most polluted cities in Western Province, Sri Lanka
0 measured cities ranked by PM2.5, last 7 days.
No city has enough measurements for this window yet.
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data
Estimated: cities without a monitor
Western Province cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.
| City | 7-day estimate |
|---|---|
| Colombo estimated | ≈ 12 µg/m³ |
| Dehiwala-Mount Lavinia estimated | ≈ 12 µg/m³ |
| Maharagama estimated | ≈ 12 µg/m³ |
| Moratuwa estimated | ≈ 12 µg/m³ |
| Negombo estimated | ≈ 12 µg/m³ |
| Pita Kotte estimated | ≈ 12 µg/m³ |
| Sri Jayewardenepura Kotte estimated | ≈ 12 µg/m³ |
| Katunayaka estimated | ≈ 12 µg/m³ |
| Battaramulla South estimated | ≈ 12 µg/m³ |
| Kolonnawa estimated | ≈ 12 µg/m³ |
| Kotikawatta estimated | ≈ 12 µg/m³ |
| Hendala estimated | ≈ 12 µg/m³ |
| Welisara estimated | ≈ 12 µg/m³ |
| Kalutara estimated | ≈ 11 µg/m³ |
| Homagama estimated | ≈ 12 µg/m³ |
| Beruwala estimated | ≈ 11 µg/m³ |
| Panadura estimated | ≈ 12 µg/m³ |
| Mulleriyawa estimated | ≈ 12 µg/m³ |
| Kandana estimated | ≈ 12 µg/m³ |
| Ja Ela estimated | ≈ 12 µg/m³ |
| Wattala estimated | ≈ 12 µg/m³ |
| Kelaniya estimated | ≈ 12 µg/m³ |
| Peliyagoda estimated | ≈ 12 µg/m³ |
| Hanwella Ihala estimated | ≈ 12 µg/m³ |
Updated 2026-10-01 10:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.