Worst air pollution Arao, today and tomorrow
Today (16 July): Air quality in Arao is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 38.3/100).
Tomorrow (17 July 2026): Air quality in Arao is fair. All pollutants stay as today. Pollution peaks around 12:00 PM (O3: 36.2/100). 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.
Arao's air quality reflects the Kumamoto Prefecture Ariake Sea coastal position adjacent to the Mitsui Chemicals complex, with vehicle traffic on surrounding roads and the chemical and manufacturing corridor generating elevated industrial PM2.5. Consistent Ariake Sea maritime breezes provide coastal ventilation, while the chemical operations' industrial scale represents Arao's most distinctive local air quality contribution and the coastal position generally maintains moderate Kumamoto Prefecture coastal industrial readings throughout most of the year.
Today - 16 July | Pollution peaks at 15:00
AQI:
Fair
38.3/100
PM2.5 (fine particles):
Good
11.6/100
PM10 (coarse particles):
Good
4.3/100
NO2 (nitrogen dioxide):
Good
2.9/100
O3 (ozone):
Fair
38.3/100
SO2 (sulfur dioxide):
Good
1.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.3/100
PM1 (ultrafine particles):
Good
8.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Fair
36.2/100
PM2.5 (fine particles):
Good
10.1/100
PM10 (coarse particles):
Good
3.6/100
NO2 (nitrogen dioxide):
Good
2.9/100
O3 (ozone):
Fair
36.2/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.5/100
PM1 (ultrafine particles):
Good
8.2/100
Frequently Asked Questions
Is air quality bad in Arao right now?
On 16 July 2026, overall air quality in Arao is fair. AQI is the main air quality indicator at 38.3/100. Pollution peaks around 3:00 PM (O3: 38.3/100).
Will air quality be worse tomorrow in Arao?
On 17 July 2026, air quality conditions in Arao will be similar to today, with AQI forecast at fair at 36.2/100. Pollution peaks around 12:00 PM (O3: 36.2/100).
When is air pollution at its worst in Arao?
The biggest local contributors to pollution in Arao are road traffic, steel, cement, and chemical production, along with manufacturing activity, particularly once dry, windy weather picks up. Strong seasonal winds can lift dust from the surrounding dry terrain and push particulate levels sharply higher. Sea breezes typically keep conditions in check, except during still weather.
Are air quality levels in Arao 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