Worst air pollution Okazaki, today and tomorrow
Today (16 July): Air quality in Okazaki is very poor. AQI and O3 are very poor; NO2 is fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 82.8/100).
Tomorrow (17 July 2026): Air quality in Okazaki is poor. AQI improves to poor; O3 decreases to poor; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 1:00 PM (O3: 68.7/100). 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
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Okazaki's air quality reflects the Aichi Prefecture Yahagi River valley position adjacent to Toyota, with vehicle traffic on surrounding roads and the automotive parts, machinery, and manufacturing corridor 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 Okazaki generally maintains moderate Nagoya metropolitan southern corridor readings throughout most of the year.
Today - 16 July | Pollution peaks at 14:00
AQI:
Very poor
82.8/100
PM2.5 (fine particles):
Good
17.0/100
PM10 (coarse particles):
Good
5.2/100
NO2 (nitrogen dioxide):
Fair
22.0/100
O3 (ozone):
Very poor
82.8/100
SO2 (sulfur dioxide):
Good
12.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.7/100
PM1 (ultrafine particles):
Good
19.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 13:00
AQI:
Poor
68.7/100
PM2.5 (fine particles):
Good
18.4/100
PM10 (coarse particles):
Good
5.8/100
NO2 (nitrogen dioxide):
Fair
23.6/100
O3 (ozone):
Poor
68.7/100
SO2 (sulfur dioxide):
Good
12.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.9/100
PM1 (ultrafine particles):
Fair
21.2/100
Frequently Asked Questions
Is air quality bad in Okazaki right now?
On 16 July 2026, overall air quality in Okazaki is very poor. AQI is the main air quality indicator at 82.8/100. Pollution peaks around 2:00 PM (O3: 82.8/100).
Will air quality be worse tomorrow in Okazaki?
On 17 July 2026, air quality conditions in Okazaki will be better than today, with AQI forecast at poor at 68.7/100. Pollution peaks around 1:00 PM (O3: 68.7/100).
When is air pollution at its worst in Okazaki?
The biggest local contributors to pollution in Okazaki are traffic on the surrounding roads, heavy industry such as steel, cement, or petrochemical processing, as well as manufacturing and food processing, particularly once summer heat and strong sunlight build up. Photochemical reactions in the heat push ozone levels higher. Cooler temperatures for the rest of the year keep this in check.
Are air quality levels in Okazaki 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