Most polluted cities in Hong Kong, June 2023

No city in Hong Kong had measurements on 70% of the days, so June 2023 has no board for Hong Kong.

Low1–3

Moderate4–6

High7–9

Very high10

The UK's Daily Air Quality Index (1 to 10), PM2.5 bands. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales