Worst air pollution Aizuwakamatsu, today and tomorrow
Today (16 July): Air quality in Aizuwakamatsu is fair. NO2 and HCHO are fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 44.8/100).
Tomorrow (17 July 2026): Air quality in Aizuwakamatsu is fair. AQI worsens to fair; O3 increases to fair; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 AM (NO2: 36.0/100). 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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Aizuwakamatsu's air quality reflects the Fukushima Prefecture Aizu Basin's partial enclosure between the Iide and Echigo mountain ranges at 212 metres, with vehicle traffic on surrounding roads and the sake brewing, lacquerware, and manufacturing corridor contributing distinctive fermentation organic aerosols alongside primary vehicle sources. The basin's topographic enclosure creates concentration under winter inversions with heavy snowfall, while the extraordinary sake tradition's distinctive yeast emissions represent Aizuwakamatsu's most locally unique air quality characteristic throughout the year.
Today - 16 July | Pollution peaks at 14:00
AQI:
Medium
44.8/100
PM2.5 (fine particles):
Good
13.6/100
PM10 (coarse particles):
Good
3.7/100
NO2 (nitrogen dioxide):
Fair
33.9/100
O3 (ozone):
Medium
44.8/100
SO2 (sulfur dioxide):
Good
9.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
22.2/100
PM1 (ultrafine particles):
Good
18.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 00:00
AQI:
Fair
36.0/100
PM2.5 (fine particles):
Good
16.7/100
PM10 (coarse particles):
Good
4.6/100
NO2 (nitrogen dioxide):
Fair
36.0/100
O3 (ozone):
Fair
34.7/100
SO2 (sulfur dioxide):
Good
7.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
23.0/100
PM1 (ultrafine particles):
Fair
22.2/100
Frequently Asked Questions
Is air quality bad in Aizuwakamatsu right now?
On 16 July 2026, overall air quality in Aizuwakamatsu is fair. NO2 is the main pollutant at 33.9/100. Pollution peaks around 2:00 PM (O3: 44.8/100).
Will air quality be worse tomorrow in Aizuwakamatsu?
On 17 July 2026, air quality conditions in Aizuwakamatsu will be similar to today, with AQI forecast at fair at 36.0/100. Pollution peaks around 12:00 AM (NO2: 36.0/100).
When is air pollution at its worst in Aizuwakamatsu?
Aizuwakamatsu usually sees its poorest air quality when vehicle traffic and manufacturing and food processing coincide with periods when temperature inversions set in over the valley. Topographic enclosure in the valley lets pollution accumulate rather than clear out. This is most pronounced in winter, when inversions are more frequent.
Are air quality levels in Aizuwakamatsu 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