Worst air pollution Satsumasendai, today and tomorrow
Today (10 August): Air quality in Satsumasendai is fair. AQI and NO2 are fair; PM2.5, PM10, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (NO2: 38.4/100).
Tomorrow (11 August 2026): Air quality in Satsumasendai is fair. AQI improves to medium; NO2 decreases to medium; O3 increases to fair; HCHO increases to fair; all other pollutants stay as today. Pollution peaks around 5:00 AM (NO2: 44.9/100). 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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Satsumasendai's air quality reflects the Kagoshima Prefecture Sendai River coastal position on the East China Sea, with vehicle traffic on surrounding roads and the Sendai Thermal Power Station and manufacturing corridor contributing elevated industrial emissions. Consistent East China Sea maritime breezes provide coastal ventilation, while the power station's industrial scale represents Satsumasendai's most distinctive local air quality contribution and the coastal position generally manages readings on most wind days throughout most of the year.
Today - 10 August | Pollution peaks at 23:00
AQI:
Fair
38.4/100
PM2.5 (fine particles):
Good
9.1/100
PM10 (coarse particles):
Good
2.9/100
NO2 (nitrogen dioxide):
Fair
38.4/100
O3 (ozone):
Good
14.6/100
SO2 (sulfur dioxide):
Good
12.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
14.3/100
PM1 (ultrafine particles):
Good
9.5/100
Levels show the poorest local air quality during the day
Tomorrow - 11 August | Pollution peaks at 05:00
AQI:
Medium
44.9/100
PM2.5 (fine particles):
Good
11.9/100
PM10 (coarse particles):
Good
4.1/100
NO2 (nitrogen dioxide):
Medium
44.9/100
O3 (ozone):
Fair
27.9/100
SO2 (sulfur dioxide):
Good
13.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
20.3/100
PM1 (ultrafine particles):
Good
10.9/100
Frequently Asked Questions
Is air quality bad in Satsumasendai right now?
On 10 August 2026, overall air quality in Satsumasendai is fair. AQI is the main air quality indicator at 38.4/100. Pollution peaks around 11:00 PM (NO2: 38.4/100).
Will air quality be worse tomorrow in Satsumasendai?
On 11 August 2026, air quality conditions in Satsumasendai will be similar to today, with O3 forecast at fair at 27.9/100. Pollution peaks around 5:00 AM (NO2: 44.9/100).
When is air pollution at its worst in Satsumasendai?
Air quality in Satsumasendai tends to be worse when road traffic, the local power plant, together with manufacturing and food processing build up and dry, windy weather picks up. These wind events can carry dust in from the surrounding arid landscape. Onshore breezes usually help clear the air, but pollution can build up when winds are light.
Are air quality levels in Satsumasendai 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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