Worst air pollution Kushiro, today and tomorrow
Today (10 August): Air quality in Kushiro is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 AM (O3: 18.2/100).
Tomorrow (11 August 2026): Air quality in Kushiro is good. All pollutants stay as today. Pollution peaks around 12:00 AM (O3: 12.9/100). 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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Kushiro's air quality benefits from its exceptional Pacific Ocean and Kushiro Marsh coastal position in eastern Hokkaido, with consistent Pacific and sub-Arctic maritime breezes providing reliable ventilation. Vehicle traffic on surrounding roads and the fishing, pulp, and services corridor contribute local sources, while the outstanding Pacific coastal exposure and the Kushiro Wetland National Park's extraordinary natural setting generally maintain Kushiro among Hokkaido's cleaner coastal cities throughout most of the year.
Today - 10 August | Pollution peaks at 11:00
AQI:
Good
18.2/100
PM2.5 (fine particles):
Good
5.8/100
PM10 (coarse particles):
Good
2.5/100
NO2 (nitrogen dioxide):
Good
2.1/100
O3 (ozone):
Good
18.2/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.1/100
PM1 (ultrafine particles):
Good
3.3/100
Levels show the poorest local air quality during the day
Tomorrow - 11 August | Pollution peaks at 00:00
AQI:
Good
12.9/100
PM2.5 (fine particles):
Good
10.0/100
PM10 (coarse particles):
Good
4.5/100
NO2 (nitrogen dioxide):
Good
3.4/100
O3 (ozone):
Good
12.9/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.2/100
PM1 (ultrafine particles):
Good
2.4/100
Frequently Asked Questions
Is air quality bad in Kushiro right now?
On 10 August 2026, overall air quality in Kushiro is good. AQI is the main air quality indicator at 18.2/100. Pollution peaks around 11:00 AM (O3: 18.2/100).
Will air quality be worse tomorrow in Kushiro?
On 11 August 2026, air quality conditions in Kushiro will be similar to today, with AQI forecast at good at 12.9/100. Pollution peaks around 12:00 AM (O3: 12.9/100).
When is air pollution at its worst in Kushiro?
In Kushiro, vehicle traffic together with port and shipping activity are the main local sources, with conditions worsening when the sea breeze weakens. 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 Kushiro 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 9 August 2026 at 20:27 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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