Worst air pollution Akiruno, today and tomorrow
Today (16 July): Air quality in Akiruno is poor. AQI and O3 are poor; PM2.5, NO2, and PM1 are fair; PM10, SO2, CO, and HCHO are good. Pollution peaks around 1:00 PM (O3: 75.4/100).
Tomorrow (17 July 2026): Air quality in Akiruno is fair. AQI improves to medium; O3 decreases to medium; SO2 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 PM (O3: 45.8/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Akiruno's air quality reflects the western Tokyo metropolitan Akigawa River valley position at the Okutama mountain gateway, with vehicle traffic on surrounding roads and the manufacturing, residential, and mountain character contributing local sources. The Okutama highland breezes provide relatively clean natural ventilation, while the broader Tokyo metropolitan regional background influences the area and Akiruno generally maintains among the Tokyo metropolitan area's more moderately ventilated western mountain gateway communities throughout most of the year.
Today - 16 July | Pollution peaks at 13:00
AQI:
Poor
75.4/100
PM2.5 (fine particles):
Fair
28.3/100
PM10 (coarse particles):
Good
8.0/100
NO2 (nitrogen dioxide):
Fair
23.1/100
O3 (ozone):
Poor
75.4/100
SO2 (sulfur dioxide):
Good
16.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
13.3/100
PM1 (ultrafine particles):
Fair
33.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Medium
45.8/100
PM2.5 (fine particles):
Fair
26.7/100
PM10 (coarse particles):
Good
7.4/100
NO2 (nitrogen dioxide):
Fair
22.5/100
O3 (ozone):
Medium
45.8/100
SO2 (sulfur dioxide):
Fair
21.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
18.0/100
PM1 (ultrafine particles):
Fair
33.2/100
Frequently Asked Questions
Is air quality bad in Akiruno right now?
On 16 July 2026, overall air quality in Akiruno is poor. AQI is the main air quality indicator at 75.4/100. Pollution peaks around 1:00 PM (O3: 75.4/100).
Will air quality be worse tomorrow in Akiruno?
On 17 July 2026, air quality conditions in Akiruno will be better than today, with PM1 forecast at fair at 33.2/100. Pollution peaks around 12:00 PM (O3: 45.8/100).
When is air pollution at its worst in Akiruno?
Pollution in Akiruno typically rises when traffic emissions together with manufacturing and food processing combine, especially once still air allows pollutants to build up. Day-to-day conditions here depend heavily on the weather. Background emissions and local weather both play a role in day-to-day changes.
Are air quality levels in Akiruno based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app