Worst air pollution Saitama, today and tomorrow
Today (16 July): Air quality in Saitama is poor. AQI and O3 are poor; PM2.5, NO2, SO2, and PM1 are fair; PM10, CO, and HCHO are good. Pollution peaks around 1:00 PM (O3: 72.9/100).
Tomorrow (17 July 2026): Air quality in Saitama is fair. AQI improves to fair; O3 decreases to fair; all other pollutants stay as today. Pollution peaks around 10:00 AM (NO2: 36.4/100). 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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Saitama's air quality reflects the flat Kanto Plain's northern Tokyo metropolitan corridor position, with vehicle traffic on surrounding expressways and the manufacturing, logistics, and residential corridor contributing elevated NOₓ. The Kanto Plain's flat alluvial terrain allows reasonable dispersal, while the broader Tokyo metropolitan regional vehicle and industrial emissions elevate regional background and summer photochemical ozone from the vast Kanto metropolitan corridor is the primary warm-season concern throughout the year.
Today - 16 July | Pollution peaks at 13:00
AQI:
Poor
72.9/100
PM2.5 (fine particles):
Fair
20.6/100
PM10 (coarse particles):
Good
5.8/100
NO2 (nitrogen dioxide):
Fair
26.0/100
O3 (ozone):
Poor
72.9/100
SO2 (sulfur dioxide):
Fair
20.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.7/100
PM1 (ultrafine particles):
Fair
25.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 10:00
AQI:
Fair
36.4/100
PM2.5 (fine particles):
Fair
20.9/100
PM10 (coarse particles):
Good
5.6/100
NO2 (nitrogen dioxide):
Fair
36.4/100
O3 (ozone):
Fair
30.9/100
SO2 (sulfur dioxide):
Fair
30.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.7/100
PM1 (ultrafine particles):
Fair
26.7/100
Frequently Asked Questions
Is air quality bad in Saitama right now?
On 16 July 2026, overall air quality in Saitama is poor. AQI is the main air quality indicator at 72.9/100. Pollution peaks around 1:00 PM (O3: 72.9/100).
Will air quality be worse tomorrow in Saitama?
On 17 July 2026, air quality conditions in Saitama will be better than today, with AQI forecast at fair at 36.4/100. Pollution peaks around 10:00 AM (NO2: 36.4/100).
When is air pollution at its worst in Saitama?
Saitama usually sees its poorest air quality when traffic on the surrounding roads, heavy industry such as steel, cement, or petrochemical processing, and textile and manufacturing operations coincide with periods when dry, windy weather picks up. These wind events can carry dust in from the surrounding arid landscape. Strong sunlight reacting with local emissions drives up ground-level ozone.
Are air quality levels in Saitama 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