Worst air pollution Toyonaka, today and tomorrow
Today (16 July): Air quality in Toyonaka is poor. AQI and O3 are poor; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 71.7/100).
Tomorrow (17 July 2026): Air quality in Toyonaka is very poor. AQI worsens to very poor; PM2.5 increases to fair; NO2 increases to fair; O3 increases to very poor; SO2 increases to fair; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 89.1/100). 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.
Toyonaka's air quality reflects the Osaka metropolitan area's northern Osaka Bay hinterland suburban corridor adjacent to Osaka Itami International Airport, with the airport's concentrated aviation operations and vehicle traffic on surrounding expressways generating elevated NOₓ alongside the surrounding dense residential character. Osaka Bay breezes provide limited maritime ventilation, while the aviation emissions and the broader Kinki metropolitan regional background maintain Toyonaka at moderate to elevated Osaka northern metropolitan suburban readings throughout most of the year.
Today - 16 July | Pollution peaks at 14:00
AQI:
Poor
71.7/100
PM2.5 (fine particles):
Good
14.4/100
PM10 (coarse particles):
Good
4.5/100
NO2 (nitrogen dioxide):
Good
19.6/100
O3 (ozone):
Poor
71.7/100
SO2 (sulfur dioxide):
Good
13.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.2/100
PM1 (ultrafine particles):
Good
17.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 16:00
AQI:
Very poor
89.1/100
PM2.5 (fine particles):
Fair
20.5/100
PM10 (coarse particles):
Good
5.8/100
NO2 (nitrogen dioxide):
Fair
24.6/100
O3 (ozone):
Very poor
89.1/100
SO2 (sulfur dioxide):
Fair
20.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
13.4/100
PM1 (ultrafine particles):
Fair
26.0/100
Frequently Asked Questions
Is air quality bad in Toyonaka right now?
On 16 July 2026, overall air quality in Toyonaka is poor. AQI is the main air quality indicator at 71.7/100. Pollution peaks around 2:00 PM (O3: 71.7/100).
Will air quality be worse tomorrow in Toyonaka?
On 17 July 2026, air quality conditions in Toyonaka will be worse than today, with AQI forecast at very poor at 89.1/100. Pollution peaks around 4:00 PM (O3: 89.1/100).
When is air pollution at its worst in Toyonaka?
Toyonaka usually sees its poorest air quality when road traffic along with aircraft operations at the local air base coincide with periods when maritime winds die down. Onshore breezes usually help clear the air, but pollution can build up when winds are light. This natural ventilation is one reason coastal areas often see better readings than inland cities.
Are air quality levels in Toyonaka 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