Worst air pollution Iwamizawa, today and tomorrow
Today (16 July): Air quality in Iwamizawa is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 AM (O3: 28.7/100).
Tomorrow (17 July 2026): Air quality in Iwamizawa is fair. All pollutants stay as today. Pollution peaks around 3:00 PM (O3: 34.4/100). 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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Iwamizawa's air quality reflects the Hokkaido central Sorachi River plain position adjacent to Sapporo, with vehicle traffic on surrounding roads and the coal mining legacy, rice farming, and residential character contributing local sources. The flat Ishikari Plain allows reasonable dispersal, while the broader Sapporo metropolitan regional background and the clean Hokkaido boreal setting generally maintain Iwamizawa at moderate conditions throughout most of the year.
Today - 16 July | Pollution peaks at 03:00
AQI:
Fair
28.7/100
PM2.5 (fine particles):
Good
5.6/100
PM10 (coarse particles):
Good
1.8/100
NO2 (nitrogen dioxide):
Good
6.9/100
O3 (ozone):
Fair
28.7/100
SO2 (sulfur dioxide):
Good
1.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
12.6/100
PM1 (ultrafine particles):
Good
6.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Fair
34.4/100
PM2.5 (fine particles):
Good
6.8/100
PM10 (coarse particles):
Good
2.9/100
NO2 (nitrogen dioxide):
Good
5.8/100
O3 (ozone):
Fair
34.4/100
SO2 (sulfur dioxide):
Good
1.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
11.2/100
PM1 (ultrafine particles):
Good
6.3/100
Frequently Asked Questions
Is air quality bad in Iwamizawa right now?
On 16 July 2026, overall air quality in Iwamizawa is fair. AQI is the main air quality indicator at 28.7/100. Pollution peaks around 3:00 AM (O3: 28.7/100).
Will air quality be worse tomorrow in Iwamizawa?
On 17 July 2026, air quality conditions in Iwamizawa will be similar to today, with AQI forecast at fair at 34.4/100. Pollution peaks around 3:00 PM (O3: 34.4/100).
When is air pollution at its worst in Iwamizawa?
The biggest local contributors to pollution in Iwamizawa are traffic emissions, mining operations, as well as agricultural activity, particularly once the colder winter months arrive. Residential heating through the colder months is a major seasonal source of particulates. This is far less of a factor once the heating season ends.
Are air quality levels in Iwamizawa 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