Worst air pollution Owariasahi, today and tomorrow
Today (16 July): Air quality in Owariasahi is poor. AQI and O3 are poor; PM1 is fair; PM2.5, PM10, NO2, SO2, CO, and HCHO are good. Pollution peaks around 12:00 PM (O3: 68.6/100).
Tomorrow (17 July 2026): Air quality in Owariasahi is very poor. AQI worsens to very poor; O3 increases to very poor; PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 2:00 PM (O3: 80.9/100). 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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Owariasahi's air quality reflects the Aichi Prefecture northeastern Nagoya metropolitan corridor adjacent to the Moriyama district, with vehicle traffic on surrounding roads and the manufacturing and residential character contributing local sources. The flat Nobi Plain allows reasonable dispersal, while summer photochemical ozone from the vast Chukyo metropolitan corridor is the primary warm-season concern and Owariasahi generally maintains moderate Nagoya metropolitan northeastern suburban readings throughout most of the year.
Today - 16 July | Pollution peaks at 12:00
AQI:
Poor
68.6/100
PM2.5 (fine particles):
Good
17.1/100
PM10 (coarse particles):
Good
5.1/100
NO2 (nitrogen dioxide):
Good
13.5/100
O3 (ozone):
Poor
68.6/100
SO2 (sulfur dioxide):
Good
6.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
13.0/100
PM1 (ultrafine particles):
Fair
20.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 14:00
AQI:
Very poor
80.9/100
PM2.5 (fine particles):
Good
14.6/100
PM10 (coarse particles):
Good
4.2/100
NO2 (nitrogen dioxide):
Good
13.7/100
O3 (ozone):
Very poor
80.9/100
SO2 (sulfur dioxide):
Good
6.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
14.9/100
PM1 (ultrafine particles):
Good
19.8/100
Frequently Asked Questions
Is air quality bad in Owariasahi right now?
On 16 July 2026, overall air quality in Owariasahi is poor. AQI is the main air quality indicator at 68.6/100. Pollution peaks around 12:00 PM (O3: 68.6/100).
Will air quality be worse tomorrow in Owariasahi?
On 17 July 2026, air quality conditions in Owariasahi will be worse than today, with AQI forecast at very poor at 80.9/100. Pollution peaks around 2:00 PM (O3: 80.9/100).
When is air pollution at its worst in Owariasahi?
Pollution in Owariasahi typically rises when traffic on the surrounding roads, petrochemical and refining operations, as well as textile and manufacturing operations combine, especially once warm, sunny weather takes hold. Strong sunlight reacting with local emissions drives up ground-level ozone. Cooler temperatures for the rest of the year keep this in check.
Are air quality levels in Owariasahi 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