Tokyo Air Quality
Japan · 35.68, 139.65 · hour of 2026-10-06 21:00 UTC
65US AQI
ModerateCategory
7.9PM2.5 (µg/m³)
9.1PM10 (µg/m³)
62O3 (µg/m³)
22.7NO2 (µg/m³)
14.6SO2 (µg/m³)
150CO (µg/m³)
What this means
Tokyo currently ranks #44 of 50 tracked cities for PM2.5 (1 = most polluted). Its PM2.5 level of 7.9 µg/m³ is within the WHO 24-hour guideline of 15 µg/m³. A US AQI of 65 falls in the “Moderate” band; see the health guide for what each band means.
Figures are hourly values from the Open-Meteo Air Quality API, modelled from Copernicus CAMS forecasts for the city-centre coordinates rather than read from a single ground station. Concentrations are in micrograms per cubic metre; the US AQI follows EPA breakpoints and reports the worst pollutant. Data is cached for 15 minutes.