Worst air pollution Maebashi, today and tomorrow
Today (10 August): Air quality in Maebashi is fair. PM1 is fair; AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, and HCHO are good. Pollution peaks around 12:00 PM (O3: 50.6/100).
Tomorrow (11 August 2026): Air quality in Maebashi is fair. AQI worsens to fair; O3 increases to fair; PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 11:00 AM (O3: 38.7/100). 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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Maebashi's air quality reflects the flat Gunma Prefecture Tone River plain at the Akagi Mountain base, with vehicle traffic on surrounding roads and the manufacturing, food processing, and government corridor contributing local sources. The flat Kanto Plain generally allows reasonable dispersal, while summer photochemical ozone from the Kanto corridor and the Akagi Mountain's Foehn-like winds create distinctive local meteorological dynamics and Maebashi generally maintains moderate Japanese inland Kanto plain readings throughout most of the year.
Today - 10 August | Pollution peaks at 12:00
AQI:
Medium
50.6/100
PM2.5 (fine particles):
Good
15.3/100
PM10 (coarse particles):
Good
4.1/100
NO2 (nitrogen dioxide):
Good
19.6/100
O3 (ozone):
Medium
50.6/100
SO2 (sulfur dioxide):
Good
6.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
15.9/100
PM1 (ultrafine particles):
Fair
21.4/100
Levels show the poorest local air quality during the day
Tomorrow - 11 August | Pollution peaks at 11:00
AQI:
Fair
38.7/100
PM2.5 (fine particles):
Good
6.5/100
PM10 (coarse particles):
Good
1.9/100
NO2 (nitrogen dioxide):
Good
17.0/100
O3 (ozone):
Fair
38.7/100
SO2 (sulfur dioxide):
Good
5.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.2/100
PM1 (ultrafine particles):
Good
8.3/100
Frequently Asked Questions
Is air quality bad in Maebashi right now?
On 10 August 2026, overall air quality in Maebashi is fair. PM1 is the main pollutant at 21.4/100. Pollution peaks around 12:00 PM (O3: 50.6/100).
Will air quality be worse tomorrow in Maebashi?
On 11 August 2026, air quality conditions in Maebashi will be similar to today, with AQI forecast at fair at 38.7/100. Pollution peaks around 11:00 AM (O3: 38.7/100).
When is air pollution at its worst in Maebashi?
In Maebashi, traffic emissions, heavy industrial and chemical processing, and light manufacturing are the main local sources, with conditions worsening when hot, still weather settles in. Photochemical reactions in the heat push ozone levels higher. Readings are generally lower during the cooler, cloudier months.
Are air quality levels in Maebashi 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 9 August 2026 at 20:27 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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