Worst air pollution Morioka, today and tomorrow
Today (16 July): Air quality in Morioka is fair. AQI, NO2, O3, and HCHO are fair; PM2.5, PM10, SO2, CO, and PM1 are good. Pollution peaks around 12:00 AM (O3: 35.3/100).
Tomorrow (17 July 2026): Air quality in Morioka is fair. All pollutants stay as today. Pollution peaks around 11:00 AM (O3: 28.2/100). 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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Morioka's air quality benefits from its exceptional Iwate Prefecture Kitakami River valley position, with consistent Pacific coastal and Ou Mountain westerly breezes providing reliable ventilation. Vehicle traffic on surrounding roads and the iron casting, government, and university corridor contribute local sources, while the surrounding Kitakami highlands provide topographic variation and Morioka generally maintains good to moderate conditions for a major Japanese northern Tohoku city throughout most of the year.
Today - 16 July | Pollution peaks at 00:00
AQI:
Fair
35.3/100
PM2.5 (fine particles):
Good
11.6/100
PM10 (coarse particles):
Good
3.2/100
NO2 (nitrogen dioxide):
Fair
29.5/100
O3 (ozone):
Fair
35.3/100
SO2 (sulfur dioxide):
Good
9.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
20.8/100
PM1 (ultrafine particles):
Good
15.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 11:00
AQI:
Fair
28.2/100
PM2.5 (fine particles):
Good
10.6/100
PM10 (coarse particles):
Good
2.9/100
NO2 (nitrogen dioxide):
Fair
26.6/100
O3 (ozone):
Fair
28.2/100
SO2 (sulfur dioxide):
Good
4.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
20.5/100
PM1 (ultrafine particles):
Good
14.6/100
Frequently Asked Questions
Is air quality bad in Morioka right now?
On 16 July 2026, overall air quality in Morioka is fair. AQI is the main air quality indicator at 35.3/100. Pollution peaks around 12:00 AM (O3: 35.3/100).
Will air quality be worse tomorrow in Morioka?
On 17 July 2026, air quality conditions in Morioka will be similar to today, with AQI forecast at fair at 28.2/100. Pollution peaks around 11:00 AM (O3: 28.2/100).
When is air pollution at its worst in Morioka?
The biggest local contributor to pollution in Morioka is vehicle traffic, particularly once maritime winds die down. Maritime airflow normally ventilates the area well, though calmer spells let levels rise. Areas further inland without this ventilation tend to fare worse.
Are air quality levels in Morioka 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