Worst air pollution Higashi-Matsuyama, today and tomorrow
Today (16 July): Air quality in Higashi-Matsuyama is poor. AQI and O3 are poor; PM2.5, NO2, and PM1 are fair; PM10, SO2, CO, and HCHO are good. Pollution peaks around 3:00 PM (O3: 77.7/100).
Tomorrow (17 July 2026): Air quality in Higashi-Matsuyama is fair. AQI improves to medium; O3 decreases to medium; HCHO increases to fair; all other pollutants stay as today. Pollution peaks around 1:00 PM (O3: 50.3/100). 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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Higashi-Matsuyama's air quality reflects the flat Saitama northern Kanto Plain position adjacent to the Musashino Hills, with vehicle traffic on surrounding roads and the manufacturing, residential, and commercial character contributing local sources. The flat Kanto Plain allows reasonable dispersal, while summer photochemical ozone from the broader Kanto corridor is the primary warm-season concern and Higashi-Matsuyama generally maintains moderate Japanese inland Kanto plain city readings throughout most of the year.
Today - 16 July | Pollution peaks at 15:00
AQI:
Poor
77.7/100
PM2.5 (fine particles):
Fair
30.5/100
PM10 (coarse particles):
Good
9.0/100
NO2 (nitrogen dioxide):
Fair
25.5/100
O3 (ozone):
Poor
77.7/100
SO2 (sulfur dioxide):
Good
19.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
11.9/100
PM1 (ultrafine particles):
Fair
34.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 13:00
AQI:
Medium
50.3/100
PM2.5 (fine particles):
Fair
20.7/100
PM10 (coarse particles):
Good
5.6/100
NO2 (nitrogen dioxide):
Fair
28.3/100
O3 (ozone):
Medium
50.3/100
SO2 (sulfur dioxide):
Good
16.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
20.5/100
PM1 (ultrafine particles):
Fair
26.5/100
Frequently Asked Questions
Is air quality bad in Higashi-Matsuyama right now?
On 16 July 2026, overall air quality in Higashi-Matsuyama is poor. AQI is the main air quality indicator at 77.7/100. Pollution peaks around 3:00 PM (O3: 77.7/100).
Will air quality be worse tomorrow in Higashi-Matsuyama?
On 17 July 2026, air quality conditions in Higashi-Matsuyama will be better than today, with NO2 forecast at fair at 28.3/100. Pollution peaks around 1:00 PM (O3: 50.3/100).
When is air pollution at its worst in Higashi-Matsuyama?
Higashi-Matsuyama usually sees its poorest air quality when road traffic, steel, cement, and chemical production, along with light manufacturing coincide with periods when summer heat and strong sunlight build up. Photochemical reactions in the heat push ozone levels higher. Cooler temperatures for the rest of the year keep this in check.
Are air quality levels in Higashi-Matsuyama 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