Air Quality Lab — Tokyo, Japan
Air Quality Profile
Tokyo reports an annual PM2.5 of 14.5 µg/m³. That's roughly double the WHO 2021 guideline but still far below the EU annual limit of 25 µg/m³.
Tokyo
Japan
JapanAnnual Average
FairWHO annual classification
14.5µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1212 µg/m³ — Fair
1414 µg/m³ — Fair
1414 µg/m³ — Fair
1616 µg/m³ — Moderate
1717 µg/m³ — Moderate
1818 µg/m³ — Moderate
1515 µg/m³ — Fair
1616 µg/m³ — Moderate
1313 µg/m³ — Fair
1313 µg/m³ — Fair
1414 µg/m³ — Fair
1313 µg/m³ — Fair
Jan
Feb
Mar
Apr
May
Jun
1212 µg/m³ — Fair
1414 µg/m³ — Fair
1414 µg/m³ — Fair
1616 µg/m³ — Moderate
1717 µg/m³ — Moderate
1818 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
1515 µg/m³ — Fair
1616 µg/m³ — Moderate
1313 µg/m³ — Fair
1313 µg/m³ — Fair
1414 µg/m³ — Fair
1313 µg/m³ — Fair
Best months: Jan, Sep–OctWorst months: Apr–Jun
Fair10–15 µg/m³Moderate15–25 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Japan
Tokyo: 14.5 µg/m³. Typical range in Japan: 11.7–13.4 µg/m³. Low anchor: Hamamatsu, 10.0 µg/m³. High anchor: Uki, 16.1 µg/m³.
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