Kumamoto air quality · Japan
Air this clean can boost your mood and focus
US AQI 14 (Good) in Kumamoto, from 8 MOE Japan monitoring stations. Main pollutant: PM2.5.
Updated
Pollutants in Kumamoto
- PM2.5 · µg/m³2.5Under WHO limit
- NO₂ · µg/m³5.6Under WHO limit
- O₃ · µg/m³50.0
- SO₂ · µg/m³2.6Under WHO limit
Concentrations averaged across the city's stations. WHO multiples use the 2021 24-hour guidelines.
Is it safe outside in Kumamoto right now?
Air quality is satisfactory and poses little or no risk.
Walking and commuting
Go aheadEnjoy it.
Running and jogging
Go aheadA great time to run outdoors.
Cycling
Go aheadRide freely.
Children playing outside
Go aheadNo limits.
Older adults and heart or lung conditions
Go aheadNo limits.
Open windows
Go aheadAir out your home.
Mask outdoors
Not neededNot needed.
Air purifier indoors
Not neededNot needed.
Based on the US EPA Air Quality Guide, applied to the current US AQI category. If you have symptoms, follow your doctor's advice.
What US AQI 0–50 means for your health →
Air quality by area in Kumamoto
10 stations, worst first- 城南町Good28
- 水道町自排局Good · roadside22
- 楡木Good17
- 京町Good17
- 中島Good17
Show all 10 stations
- 神水本町自排局Good · roadside17
- 宇土運動公園Good11
- 益城町保健福祉センターGood11
- 北区役所Good6
- 秋津Good6
Roadside and industrial monitors are shown but are not part of the city figure.
Kumamoto air quality history
Daily average, 16 days- 48average daily US AQI over 16 days
- 68worst day, 31 October
- 16cleanest day, 26 October
- 0days at Unhealthy or worse
The last 7 days averaged 50, about the same as the week before (53). 7 of the last 16 days were Good.
Nearby cities
Japan rankingKumamoto air quality: common questions
What is the AQI in Kumamoto right now?
The US AQI in Kumamoto is 14 (Good), based on 8 monitoring stations. The main pollutant is PM2.5.
Is it safe to go outside in Kumamoto today?
A great time to be outside. Air quality is satisfactory and poses little or no risk. For runners: A great time to run outdoors.
Which area of Kumamoto has the worst air right now?
城南町 has the highest reading at 28 (Good). 秋津 has the lowest at 6, out of 10 stations reporting.
How has air quality in Kumamoto been recently?
Over the last 16 days with data, Kumamoto averaged US AQI 48. The worst day was 31 October at 68; the cleanest was 26 October at 16. 0 days were at Unhealthy or worse.
Where does Kumamoto's air quality data come from?
From Ministry of the Environment, Japan · AEROS (soramame.env.go.jp) · preliminary data, using 8 monitoring stations in and around the city. Good Air does not estimate or adjust these readings.
Source: Ministry of the Environment, Japan · AEROS (soramame.env.go.jp) · preliminary data. Readings are published by the monitoring agency and may be revised.