Air quality · China
Hong Kong Air Quality (AQI) Now
61
Poor
European Air Quality Index
European Air Quality Index
- PM2.5
- 14.3µg/m³WHO limit 15
- PM10
- 19.1µg/m³WHO limit 45
- NO₂
- 9.4µg/m³
- O₃
- 122µg/m³
- Desert dust
- 0µg/m³
- UV index
- 0.0
- US AQI
- 129
Updated: · Source: Copernicus CAMS · Open-Meteo
Air quality in Hong Kong is poor right now: European Air Quality Index 61. Fine particulate matter (PM2.5) is 14.3 µg/m³, below the WHO guideline. Sensitive groups should avoid long periods outdoors; everyone should reduce strenuous activity. Pollution is expected to peak around 13:00 over the next 48 hours (index 101, extremely poor).
Hong Kong 48-hour air quality forecast
Air quality near Hong Kong
Cleanest to most polluted.
Frequently asked questions
- Is Hong Kong polluted today?
- Air quality in Hong Kong is poor right now: European Air Quality Index 61. Sensitive groups should avoid long periods outdoors; everyone should reduce strenuous activity.
- Is it safe to exercise outdoors in Hong Kong today?
- Air quality is poor right now; consider moving intense exercise indoors.
- How is the air quality index calculated?
- The European Air Quality Index is set by the worst of PM2.5, PM10, nitrogen dioxide, ozone and sulphur dioxide: 0–20 good, 20–40 fair, 40–60 moderate, 60–80 poor, 80–100 very poor, above 100 extremely poor.
Values are Copernicus Atmosphere Monitoring Service (CAMS) model forecasts and may differ from local monitoring stations.
Hong Kong air quality: details
Pollutants and recent days
Nitrogen dioxide (NO₂) is 9.4 µg/m³ and ozone (O₃) 122 µg/m³; WHO guideline values are 25 (24 h) and 100 µg/m³ (8 h).