Worst air pollution Amakusa, today and tomorrow
Today (10 August): Air quality in Amakusa is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 PM (O3: 31.8/100).
Tomorrow (11 August 2026): Air quality in Amakusa is medium. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 6:00 PM (O3: 55.6/100). 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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Amakusa's air quality benefits from its exceptional Kumamoto Prefecture Amakusa Islands East China Sea and Yatsushiro Sea dual-coastal position, with consistent East China Sea maritime breezes providing reliable ventilation around the famous Amakusa hidden Christian heritage islands. Vehicle traffic on surrounding roads and the fishing, agriculture, and religious tourism corridor contribute modest local sources, while the outstanding island coastal exposure generally maintains Amakusa among Kumamoto Prefecture's more moderately ventilated island environments throughout most of the year.
Today - 10 August | Pollution peaks at 22:00
AQI:
Fair
31.8/100
PM2.5 (fine particles):
Good
8.7/100
PM10 (coarse particles):
Good
3.1/100
NO2 (nitrogen dioxide):
Good
11.6/100
O3 (ozone):
Fair
31.8/100
SO2 (sulfur dioxide):
Good
6.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.3/100
PM1 (ultrafine particles):
Good
7.9/100
Levels show the poorest local air quality during the day
Tomorrow - 11 August | Pollution peaks at 18:00
AQI:
Medium
55.6/100
PM2.5 (fine particles):
Good
13.2/100
PM10 (coarse particles):
Good
4.9/100
NO2 (nitrogen dioxide):
Good
10.0/100
O3 (ozone):
Medium
55.6/100
SO2 (sulfur dioxide):
Good
11.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.2/100
PM1 (ultrafine particles):
Good
9.2/100
Frequently Asked Questions
Is air quality bad in Amakusa right now?
On 10 August 2026, overall air quality in Amakusa is fair. AQI is the main air quality indicator at 31.8/100. Pollution peaks around 10:00 PM (O3: 31.8/100).
Will air quality be worse tomorrow in Amakusa?
On 11 August 2026, air quality conditions in Amakusa will be better than today, with AQI forecast at medium at 55.6/100. Pollution peaks around 6:00 PM (O3: 55.6/100).
When is air pollution at its worst in Amakusa?
Amakusa usually sees its poorest air quality when traffic on the surrounding roads, crop farming, as well as port and shipping activity coincide with periods 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 Amakusa 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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