Worst air pollution Musashimurayama, today and tomorrow
Today (16 July): Air quality in Musashimurayama is poor. AQI and O3 are poor; PM2.5, SO2, and PM1 are fair; NO2 is medium; PM10, CO, and HCHO are good. Pollution peaks around 1:00 PM (O3: 75.4/100).
Tomorrow (17 July 2026): Air quality in Musashimurayama is fair. AQI improves to medium; NO2 increases to fair; O3 decreases to medium; SO2 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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Musashimurayama in Tokyo reflects the western Tokyo metropolitan suburban corridor adjacent to Yamato-Yodobashi Air Force Base, with vehicle traffic on surrounding roads and the manufacturing and residential character contributing local sources. The flat Kanto Plain allows reasonable dispersal, while the broader Tokyo metropolitan regional emissions elevate background and summer photochemical ozone is the primary warm-season concern and the area generally maintains moderate Tokyo western suburban readings throughout most of the year.
Today - 16 July | Pollution peaks at 13:00
AQI:
Poor
75.4/100
PM2.5 (fine particles):
Fair
32.8/100
PM10 (coarse particles):
Good
9.4/100
NO2 (nitrogen dioxide):
Medium
40.0/100
O3 (ozone):
Poor
75.4/100
SO2 (sulfur dioxide):
Fair
32.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
13.3/100
PM1 (ultrafine particles):
Fair
38.8/100
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
30.9/100
PM10 (coarse particles):
Good
8.7/100
NO2 (nitrogen dioxide):
Fair
38.8/100
O3 (ozone):
Medium
45.8/100
SO2 (sulfur dioxide):
Medium
40.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
18.0/100
PM1 (ultrafine particles):
Fair
38.0/100
Frequently Asked Questions
Is air quality bad in Musashimurayama right now?
On 16 July 2026, overall air quality in Musashimurayama 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 Musashimurayama?
On 17 July 2026, air quality conditions in Musashimurayama will be better than today, with NO2 forecast at fair at 38.8/100. Pollution peaks around 12:00 PM (O3: 45.8/100).
When is air pollution at its worst in Musashimurayama?
Musashimurayama usually sees its poorest air quality when traffic on the surrounding roads, heavy industry such as steel, cement, or petrochemical processing, and light manufacturing coincide with periods when hot, still weather settles in. Strong sunlight reacting with local emissions drives up ground-level ozone. Cooler temperatures for the rest of the year keep this in check.
Are air quality levels in Musashimurayama 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