Worst air pollution Karatsu, today and tomorrow
Today (16 July): Air quality in Karatsu is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 58.8/100).
Tomorrow (17 July 2026): Air quality in Karatsu is medium. All pollutants stay as today. Pollution peaks around 1:00 PM (O3: 53.1/100). 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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Karatsu's air quality benefits from its exceptional Saga Prefecture Genkai Sea and Karatsu Bay coastal position, with consistent East China Sea maritime breezes providing reliable ventilation. Vehicle traffic on surrounding roads and the Karatsu ware ceramics, tourism, and agricultural corridor contribute local sources, while the outstanding coastal exposure and the distinctive ceramic tradition's occasional kiln dust add a uniquely cultural local air quality characteristic and Karatsu generally maintains good to moderate conditions for a Japanese Sea of Japan coastal heritage city.
Today - 16 July | Pollution peaks at 15:00
AQI:
Medium
58.8/100
PM2.5 (fine particles):
Good
14.1/100
PM10 (coarse particles):
Good
5.9/100
NO2 (nitrogen dioxide):
Good
3.0/100
O3 (ozone):
Medium
58.8/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.5/100
PM1 (ultrafine particles):
Good
10.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 13:00
AQI:
Medium
53.1/100
PM2.5 (fine particles):
Good
9.9/100
PM10 (coarse particles):
Good
3.5/100
NO2 (nitrogen dioxide):
Good
4.7/100
O3 (ozone):
Medium
53.1/100
SO2 (sulfur dioxide):
Good
1.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.7/100
PM1 (ultrafine particles):
Good
9.8/100
Frequently Asked Questions
Is air quality bad in Karatsu right now?
On 16 July 2026, overall air quality in Karatsu is medium. AQI is the main air quality indicator at 58.8/100. Pollution peaks around 3:00 PM (O3: 58.8/100).
Will air quality be worse tomorrow in Karatsu?
On 17 July 2026, air quality conditions in Karatsu will be similar to today, with AQI forecast at medium at 53.1/100. Pollution peaks around 1:00 PM (O3: 53.1/100).
When is air pollution at its worst in Karatsu?
In Karatsu, traffic emissions, light manufacturing, together with agricultural burning are the main local sources, with conditions worsening when dry spells bring strong winds. These wind events can carry dust in from the surrounding arid landscape. Maritime airflow normally ventilates the area well, though calmer spells let levels rise.
Are air quality levels in Karatsu 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