Worst air pollution Hirosaki, today and tomorrow
Today (16 July): Air quality in Hirosaki is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 AM (O3: 34.5/100).
Tomorrow (17 July 2026): Air quality in Hirosaki is fair. All pollutants stay as today. Pollution peaks around 2:00 PM (O3: 30.1/100). 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
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Hirosaki's air quality benefits from its exceptional Aomori Prefecture Iwaki Mountain and Tsugaru Plain position, with consistent Sea of Japan and Pacific maritime breezes providing reliable ventilation. Vehicle traffic on surrounding roads and the apple farming — Hirosaki being Japan's apple capital — tourism, and manufacturing corridor contribute distinctive apple processing organic aerosols alongside primary vehicle sources, while the outstanding maritime exposure and the apple industry's seasonal organic emissions create Hirosaki's most locally distinctive air quality characteristic throughout the year.
Today - 16 July | Pollution peaks at 03:00
AQI:
Fair
34.5/100
PM2.5 (fine particles):
Good
11.7/100
PM10 (coarse particles):
Good
4.1/100
NO2 (nitrogen dioxide):
Good
8.0/100
O3 (ozone):
Fair
34.5/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
12.0/100
PM1 (ultrafine particles):
Good
12.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 14:00
AQI:
Fair
30.1/100
PM2.5 (fine particles):
Good
10.8/100
PM10 (coarse particles):
Good
3.5/100
NO2 (nitrogen dioxide):
Good
7.7/100
O3 (ozone):
Fair
30.1/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
12.0/100
PM1 (ultrafine particles):
Good
13.1/100
Frequently Asked Questions
Is air quality bad in Hirosaki right now?
On 16 July 2026, overall air quality in Hirosaki is fair. AQI is the main air quality indicator at 34.5/100. Pollution peaks around 3:00 AM (O3: 34.5/100).
Will air quality be worse tomorrow in Hirosaki?
On 17 July 2026, air quality conditions in Hirosaki will be similar to today, with AQI forecast at fair at 30.1/100. Pollution peaks around 2:00 PM (O3: 30.1/100).
When is air pollution at its worst in Hirosaki?
The biggest local contributors to pollution in Hirosaki are traffic on the surrounding roads, manufacturing and food processing, and agricultural burning, particularly once dry, windy weather picks up. Strong seasonal winds can lift dust from the surrounding dry terrain and push particulate levels sharply higher. Maritime airflow normally ventilates the area well, though calmer spells let levels rise.
Are air quality levels in Hirosaki 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