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Air Quality in Japan

Archived observations and advisories, with dates and reporting sources.

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Archived records (30d)24

Archived records (90d)36

Cumulative urban PEI, all records11.1M

Recent events

Air QualityMediumCS:41 · v5

Unhealthy Air Quality (AQI 162)

Nishio2026-10-049d agoSource: waqiUrban PEI 45.8K Air QualityMediumCS:59 · v5

Unhealthy Air Quality (AQI 162)

Nakano2026-10-049d agoSource: waqiUrban PEI 5.9M Air QualityMediumCS:50 · v5

Unhealthy Air Quality (AQI 158)

Hitachi-Naka2026-10-039d agoSource: waqiUrban PEI 181.5K Air QualityMediumCS:29 · v5

Unhealthy Air Quality (AQI 152)

Hondomachi-hondo2026-10-0210d agoSource: waqi Air QualityMediumCS:50 · v5

Unhealthy Air Quality (AQI 163)

Asakusa2026-10-0211d agoSource: waqiUrban PEI 471.5K Air QualityHighCS:57 · v5

Very Unhealthy Air Quality (AQI 233)

Yamato2026-10-0211d agoSource: waqiUrban PEI 136.8K Air QualityHighCS:44 · v5

Very Unhealthy Air Quality (AQI 249)

Mito2026-10-0211d agoSource: waqiUrban PEI 7.6K Air QualityMediumCS:46 · v5

Unhealthy Air Quality (AQI 155)

Tōkai2026-10-0211d agoSource: waqiUrban PEI 69.6K Air QualityMediumCS:37 · v5

Unhealthy Air Quality (AQI 173)

Aso2026-10-0211d agoSource: waqiUrban PEI 1.7K Air QualityMediumCS:50 · v5

Unhealthy Air Quality (AQI 198)

Kukichūō2026-10-0112d agoSource: waqiUrban PEI 103.1K Air QualityMediumCS:46 · v5

Unhealthy Air Quality (AQI 158)

Beppu2026-09-3012d agoSource: waqiUrban PEI 74.2K Air QualityMediumCS:55 · v5

Unhealthy Air Quality (AQI 156)

Kobe2026-09-3013d agoSource: waqiUrban PEI 838.7K Air QualityMediumCS:50 · v5

Unhealthy Air Quality (AQI 156)

Kobe2026-09-3013d agoSource: waqiUrban PEI 103.7K Air QualityMediumCS:46 · v5

Unhealthy Air Quality (AQI 162)

Iwata2026-09-3013d agoSource: waqiUrban PEI 72.4K Air QualityCriticalCS:58 · v5

Hazardous Air Quality (AQI 315)

Tōgane2026-09-2914d agoSource: waqiUrban PEI 45.8K Air QualityCriticalCS:63 · v5

Hazardous Air Quality (AQI 999)

Kitami2026-09-2815d agoSource: waqiUrban PEI 83.0K Air QualityMediumCS:29 · v5

Unhealthy Air Quality (AQI 158)

Iga2026-09-2716d agoSource: waqi Air QualityMediumCS:41 · v5

Unhealthy Air Quality (AQI 161)

Miyazaki2026-09-2616d agoSource: waqiUrban PEI 17.9K Air QualityHighCS:48 · v5

Very Unhealthy Air Quality (AQI 290)

Yasugichō2026-09-2517d agoSource: waqiUrban PEI 24.0K Air QualityCriticalCS:50 · v5

Hazardous Air Quality (AQI 351)

Mito2026-09-2518d agoSource: waqiUrban PEI 7.6K Air QualityCriticalCS:43 · v5

Hazardous Air Quality (AQI 326)

Shinagawa2026-09-2419d agoSource: waqi Air QualityCriticalCS:55 · v5

Hazardous Air Quality (AQI 452)

Kameoka2026-09-1924d agoSource: waqiUrban PEI 36.0K Air QualityMediumCS:50 · v5

Unhealthy Air Quality (AQI 155)

Kagoshima2026-09-1428d agoSource: waqiUrban PEI 383.7K Air QualityMediumCS:29 · v4 (historical)

Unhealthy Air Quality (AQI 193)

Kumano2026-09-1329d agoSource: waqi Air QualityCriticalCS:43 · v4 (historical)

Hazardous Air Quality (AQI 999)

Kumano2026-09-1230d agoSource: waqi Air QualityCriticalCS:55 · v4 (historical)

Hazardous Air Quality (AQI 500)

Shizuoka2026-09-1131d agoSource: waqiUrban PEI 39.2K Air QualityHighCS:53 · v4 (historical)

Very Unhealthy Air Quality (AQI 245)

Akashi2026-09-0933d agoSource: waqiUrban PEI 73.6K Air QualityMediumCS:41 · v4 (historical)

Unhealthy Air Quality (AQI 155)

Kosai2026-09-0934d agoSource: waqiUrban PEI 22.3K Air QualityCriticalCS:55 · v4 (historical)

Hazardous Air Quality (AQI 434)

Kobe2026-09-0834d agoSource: waqiUrban PEI 38.7K Air QualityCriticalCS:68 · v4 (historical)

Hazardous Air Quality (AQI 767)

Kobe2026-09-0834d agoSource: waqiUrban PEI 838.7K

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