Most polluted cities in Singapore, January 2025

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

Good0–50

Satisfactory51–100

Moderate101–200

Poor201–300

Very poor301–400

Severe401+

India's National Air Quality Index (CPCB), PM2.5 sub-index. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales