Most polluted cities in Sri Lanka, March 2026

No city in Sri Lanka had measurements on 70% of the days, so March 2026 has no board for Sri Lanka.

Good0–5

Fair6–15

Moderate16–50

Poor51–90

Very poor91–140

Extremely poor141+

The European Environment Agency's air quality index bands for PM2.5 (2024 revision); it has bands, not numbers, so values stay in µg/m³. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales