Real-time Air Quality Index
Beijing Air Quality Index (AQI)
153US AQI
Unhealthy
The current Air Quality Index in Beijing, China is 153, which is considered unhealthy. The fine particulate (PM2.5) concentration is 32.5 µg/m³.
Last updated · Source: CAMS forecast model
Pollutant levels in Beijing
PM2.532.5 µg/m³Fine particulate matter
PM1046.9 µg/m³Coarse particulate matter
O₃172 µg/m³Ozone
NO₂28.1 µg/m³Nitrogen dioxide
SO₂5.9 µg/m³Sulphur dioxide
CO569 µg/m³Carbon monoxide
Health advice
Everyone may begin to experience health effects. Sensitive groups should avoid prolonged outdoor exertion; everyone else should limit it.
7-day AQI trend
| Day | AQI | Category |
|---|---|---|
| Jul 2 | 168 | Unhealthy |
| Jul 3 | 181 | Unhealthy |
| Jul 4 | 149 | Unhealthy for Sensitive Groups |
| Jul 5 | 145 | Unhealthy for Sensitive Groups |
| Jul 6 | 109 | Unhealthy for Sensitive Groups |
| Jul 7 | 113 | Unhealthy for Sensitive Groups |
| Jul 8 | 151 | Unhealthy |
About the Air Quality Index
The Air Quality Index (AQI) converts measured pollutant concentrations — including PM2.5, PM10, ozone (O₃), nitrogen dioxide (NO₂), sulphur dioxide (SO₂), and carbon monoxide (CO) — into a single 0–500 scale. Higher values mean greater health risk. The reading for Beijing reflects a CAMS forecast model and updates throughout the day. Learn what the AQI number means for your body.