SmogRank / Japan / Kumamoto

Air quality in Yamaga

Kumamoto, Japan. PM2.5 from 1 reference monitor, updated hourly.

– µg/m³

No reading in the last few days.

Rank

24 h
–
not enough data
7 days
#1,056
of 2,341 · 7.6 µg/m³
30 days
–
not enough data
Year
–
not enough data

Last 0 days, hour by hour

No hourly readings yet.

Times in UTC. Dashed line: WHO 24-hour guideline (15 µg/m³).

Every day for a year

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data2026-08-05: no data2026-08-06: no data2026-08-07: no data2026-08-08: no data2026-08-09: no data2026-08-10: no data2026-08-11: no data2026-08-12: no data2026-08-13: no data2026-08-14: no data2026-08-15: no data2026-08-16: no data2026-08-17: no data2026-08-18: no data2026-08-19: no data2026-08-20: no data2026-08-21: no data2026-08-22: no data2026-08-23: no data2026-08-24: no data2026-08-25: no data2026-08-26: no data2026-08-27: no data2026-08-28: no data2026-08-29: no data2026-08-30: no data2026-08-31: no data2026-09-01: no data2026-09-02: no data2026-09-03: no data2026-09-04: no data2026-09-05: no data2026-09-06: no data2026-09-07: no data2026-09-08: no data2026-09-09: no data2026-09-10: 7.0 µg/m³2026-09-11: 9.6 µg/m³2026-09-12: 12.3 µg/m³2026-09-13: 11.9 µg/m³2026-09-14: no data2026-09-15: no data2026-09-16: no data2026-09-17: 11.5 µg/m³2026-09-18: 4.1 µg/m³2026-09-19: 4.7 µg/m³2026-09-20: 4.9 µg/m³2026-09-21: 6.5 µg/m³2026-09-22: 9.6 µg/m³2026-09-23: 13.0 µg/m³2026-09-24: 11.1 µg/m³2026-09-25: 14.5 µg/m³2026-09-26: 12.0 µg/m³2026-09-27: 1.9 µg/m³2026-09-28: 3.0 µg/m³2026-09-29: 4.3 µg/m³2026-09-30: 6.5 µg/m³
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

0 of 18 measured days were over the WHO 24-hour guideline.

2026 against 2025, month by month

15Jan 2025: 12.4 µg/m³JanFeb 2025: 9.4 µg/m³FebMar 2025: 11.0 µg/m³MarApr 2025: 10.5 µg/m³AprMay 2025: 10.7 µg/m³MayJun 2025: 9.4 µg/m³JunJul 2025: 13.4 µg/m³JulAug 2025: 9.8 µg/m³AugSep 2025: 6.7 µg/m³Sep 2026: 8.2 µg/m³SepOctNovDec

Faded bars: 2025. A month shows once it has 10 measured days.

Monitors

StationOperatorType
山鹿市山鹿政府標準利用規約（第2.0版） (Government Standard Terms of Use v2.0)Ministry of the Environment Air Pollutant Wide Area Monitoring SystemReference

The city's value is the median of its reference monitors each hour; low-cost sensors are listed but not counted when reference monitors exist. Data via OpenAQ; licences as listed. How we rank. Embed this on your site.

Other cities in Japan

Honmachi 9.6Onomichi 9.5Hita 9.4Ōzu 9.3Kanoya 9.3Kobayashi 9.1Kamisu 9.1Ōyanomachi-noboritate 9.0Minamata 9.0Hitoyoshi 8.9Owariasahi 8.9Hyūga 8.9

30-day averages, µg/m³. All of Japan →

Updated 2026-10-01 04:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.