Worst air pollution Tomiya, today and tomorrow
Today (16 July): Air quality in Tomiya is fair. PM1 is fair; AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, and HCHO are good. Pollution peaks around 11:00 AM (O3: 58.1/100).
Tomorrow (17 July 2026): Air quality in Tomiya is fair. AQI worsens to fair; O3 increases to fair; PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 7:00 AM (O3: 21.2/100). 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.
Tomiya's air quality reflects the Miyagi Prefecture Sendai metropolitan northern corridor position, with vehicle traffic on surrounding roads and the manufacturing, residential, and commercial character contributing local sources. Consistent Pacific maritime breezes provide background ventilation, while the broader Sendai metropolitan regional background generally maintains moderate Sendai metropolitan northern suburban readings throughout most of the year.
Today - 16 July | Pollution peaks at 11:00
AQI:
Medium
58.1/100
PM2.5 (fine particles):
Good
17.8/100
PM10 (coarse particles):
Good
4.9/100
NO2 (nitrogen dioxide):
Good
19.5/100
O3 (ozone):
Medium
58.1/100
SO2 (sulfur dioxide):
Good
9.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
16.8/100
PM1 (ultrafine particles):
Fair
22.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 07:00
AQI:
Fair
21.2/100
PM2.5 (fine particles):
Good
11.0/100
PM10 (coarse particles):
Good
3.0/100
NO2 (nitrogen dioxide):
Good
17.3/100
O3 (ozone):
Fair
21.2/100
SO2 (sulfur dioxide):
Good
7.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.3/100
PM1 (ultrafine particles):
Good
14.7/100
Frequently Asked Questions
Is air quality bad in Tomiya right now?
On 16 July 2026, overall air quality in Tomiya is fair. PM1 is the main pollutant at 22.8/100. Pollution peaks around 11:00 AM (O3: 58.1/100).
Will air quality be worse tomorrow in Tomiya?
On 17 July 2026, air quality conditions in Tomiya will be similar to today, with AQI forecast at fair at 21.2/100. Pollution peaks around 7:00 AM (O3: 21.2/100).
When is air pollution at its worst in Tomiya?
The biggest local contributors to pollution in Tomiya are road traffic as well as manufacturing and food processing, particularly once onshore breezes fall calm. Maritime airflow normally ventilates the area well, though calmer spells let levels rise. This coastal advantage is less pronounced during still, high-pressure weather.
Are air quality levels in Tomiya 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