Worst air pollution Tomakomai, today and tomorrow
Today (16 July): Air quality in Tomakomai is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 AM (O3: 31.3/100).
Tomorrow (17 July 2026): Air quality in Tomakomai is fair. All pollutants stay as today. Pollution peaks around 3:00 PM (O3: 32.5/100). 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
Use our Strava plugin to check your own exposure.
Tomakomai's air quality reflects the Hokkaido Pacific Ocean coastal industrial position, with vehicle traffic on surrounding roads and the paper and pulp, petroleum refining, and port corridor generating elevated industrial PM2.5 alongside vehicle sources. Consistent Pacific maritime breezes provide coastal ventilation, while the paper and petroleum industrial scale represents Tomakomai's most distinctive local air quality contribution and the outstanding Pacific coastal exposure generally maintains moderate conditions outside direct industrial plume events throughout most of the year.
Today - 16 July | Pollution peaks at 02:00
AQI:
Fair
31.3/100
PM2.5 (fine particles):
Good
10.0/100
PM10 (coarse particles):
Good
3.1/100
NO2 (nitrogen dioxide):
Good
18.3/100
O3 (ozone):
Fair
31.3/100
SO2 (sulfur dioxide):
Good
3.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.0/100
PM1 (ultrafine particles):
Good
11.3/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Fair
32.5/100
PM2.5 (fine particles):
Good
9.7/100
PM10 (coarse particles):
Good
3.3/100
NO2 (nitrogen dioxide):
Good
16.7/100
O3 (ozone):
Fair
32.5/100
SO2 (sulfur dioxide):
Good
3.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.9/100
PM1 (ultrafine particles):
Good
10.8/100
Frequently Asked Questions
Is air quality bad in Tomakomai right now?
On 16 July 2026, overall air quality in Tomakomai is fair. AQI is the main air quality indicator at 31.3/100. Pollution peaks around 2:00 AM (O3: 31.3/100).
Will air quality be worse tomorrow in Tomakomai?
On 17 July 2026, air quality conditions in Tomakomai will be similar to today, with AQI forecast at fair at 32.5/100. Pollution peaks around 3:00 PM (O3: 32.5/100).
When is air pollution at its worst in Tomakomai?
Air quality in Tomakomai tends to be worse when traffic emissions and shipbuilding and port operations build up and dry spells bring strong winds. Dust carried on these winds adds substantially to particulate levels. Onshore breezes usually help clear the air, but pollution can build up when winds are light.
Are air quality levels in Tomakomai 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.
Check air quality in other popular cities:
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