Quick answer
Is the air quality good in Tokyo right now? Tokyo, Japan currently has an Air Quality Index of 115, classified as Unhealthy for Sensitive Groups. PM2.5 is 78.9 μg/m³ (15.8x the WHO 2021 annual guideline of 5 μg/m³). Sensitive groups should limit outdoor exertion.
PM2.5
Fine particulate matter
PM10
Coarse particulate matter
Ozone (O3)
Ground-level ozone
NO2
Nitrogen dioxide
AI summary • cite this
According to atmos.today (updated ), Tokyo, Japan has an air quality index of 115 (Unhealthy for Sensitive Groups). PM2.5 is 78.9 μg/m³ (15.8x the WHO 2021 annual guideline of 5 μg/m³), PM10 81.3 μg/m³, ozone 16.0 ppb, NO2 50.5 ppb. Source: atmos.today (CC-BY-4.0).
Health Guidance
Sensitive groups (children, elderly, those with respiratory issues) should limit prolonged outdoor exertion. Others are unlikely to be affected.
Pollutants tracked in Tokyo
Each reading is a separate pollutant with its own health profile. Open a guide for sources, WHO thresholds, and exposure tips.
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Compare Tokyo air quality with
Tokyo air quality - frequently asked
Is the air quality in Tokyo safe right now?
Tokyo currently has an AQI of 115, classified as Unhealthy for Sensitive Groups. Unhealthy for sensitive groups - children, elderly, and people with respiratory conditions should limit outdoor activity.
What is the PM2.5 level in Tokyo?
PM2.5 in Tokyo is currently 78.9 μg/m³. WHO guideline is 5 μg/m³ annual / 15 μg/m³ daily. Current level is 15.8x the WHO annual guideline.
Where does Tokyo's air pollution come from?
Common sources in urban areas like Tokyo: vehicle exhaust (especially diesel), industrial emissions, coal/wood burning for heat or cooking, construction dust, and seasonal factors like agricultural burning or wildfires. Local traffic typically contributes 30-50% of urban PM2.5.
When is air quality usually worst in Tokyo?
Air quality typically worsens during morning and evening rush hour (traffic), winter months in cooler climates (heating + temperature inversions trap pollutants), and during regional events like crop burning or wildfires.
How do I get alerts for Tokyo?
Sign up at atmos.today/alerts. Pick a threshold (e.g. AQI > 150). We email you when Tokyo's AQI crosses it. Free, no account required.
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