Most polluted cities in Sri Lanka, 2025

No city in Sri Lanka had measurements on 70% of the days, so 2025 has no board for Sri Lanka.

Good0–9.0

Moderate9.1–35.4

Sensitive groups35.5–55.4

Unhealthy55.5–125.4

Very unhealthy125.5–225.4

Hazardous225.5+