Worst air pollution Hamura, today and tomorrow
Today (16 July): Air quality in Hamura is poor. AQI and O3 are poor; PM2.5 and PM1 are fair; PM10, NO2, SO2, CO, and HCHO are good. Pollution peaks around 1:00 PM (O3: 75.4/100).
Tomorrow (17 July 2026): Air quality in Hamura is fair. AQI improves to medium; O3 decreases to medium; 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.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Hamura's air quality reflects the western Tokyo metropolitan Tama River valley position adjacent to the US Air Force Yokota Air Base approach corridor, with vehicle traffic on surrounding roads and the manufacturing and residential character contributing local sources alongside the aviation background. The flat Kanto Plain allows reasonable dispersal, while the military aviation operations and summer photochemical ozone are the primary air quality concerns throughout most of the year.
Today - 16 July | Pollution peaks at 13:00
AQI:
Poor
75.4/100
PM2.5 (fine particles):
Fair
27.3/100
PM10 (coarse particles):
Good
7.7/100
NO2 (nitrogen dioxide):
Good
19.2/100
O3 (ozone):
Poor
75.4/100
SO2 (sulfur dioxide):
Good
12.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
13.3/100
PM1 (ultrafine particles):
Fair
32.8/100
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
25.8/100
PM10 (coarse particles):
Good
7.1/100
NO2 (nitrogen dioxide):
Good
18.5/100
O3 (ozone):
Medium
45.8/100
SO2 (sulfur dioxide):
Good
16.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
18.0/100
PM1 (ultrafine particles):
Fair
32.2/100
Frequently Asked Questions
Is air quality bad in Hamura right now?
On 16 July 2026, overall air quality in Hamura 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 Hamura?
On 17 July 2026, air quality conditions in Hamura will be better than today, with PM1 forecast at fair at 32.2/100. Pollution peaks around 12:00 PM (O3: 45.8/100).
When is air pollution at its worst in Hamura?
Pollution in Hamura typically rises when traffic emissions, military aviation activity, and steel, cement, and chemical production combine, especially once hot, still weather settles in. Strong sunlight reacting with local emissions drives up ground-level ozone. This is far less of an issue outside the warmer months.
Are air quality levels in Hamura 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