Real-time Air Quality Index
Tokyo Air Quality Index (AQI)
82US AQI
Moderate
The current Air Quality Index in Tokyo, Japan is 82, which is considered moderate. The fine particulate (PM2.5) concentration is 27.6 µg/m³.
Last updated · Source: CAMS forecast model
Pollutant levels in Tokyo
PM2.527.6 µg/m³Fine particulate matter
PM1034.7 µg/m³Coarse particulate matter
O₃63 µg/m³Ozone
NO₂47 µg/m³Nitrogen dioxide
SO₂32.2 µg/m³Sulphur dioxide
CO186 µg/m³Carbon monoxide
Health advice
Air quality is acceptable. Unusually sensitive people should consider limiting prolonged or heavy outdoor exertion.
7-day AQI trend
| Day | AQI | Category |
|---|---|---|
| Jul 2 | 72 | Moderate |
| Jul 3 | 59 | Moderate |
| Jul 4 | 70 | Moderate |
| Jul 5 | 61 | Moderate |
| Jul 6 | 71 | Moderate |
| Jul 7 | 84 | Moderate |
| Jul 8 | 81 | Moderate |
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 Tokyo reflects a CAMS forecast model and updates throughout the day. Learn what the AQI number means for your body.