Worst air pollution Marugame, today and tomorrow
Today (16 July): Air quality in Marugame is poor. AQI and O3 are poor; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (O3: 61.6/100).
Tomorrow (17 July 2026): Air quality in Marugame is very poor. AQI worsens to very poor; PM2.5 increases to fair; O3 increases to very poor; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 3:00 PM (O3: 100/100). 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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Marugame's air quality benefits from its exceptional Kagawa Prefecture Seto Inland Sea coastal position, with consistent Seto Inland Sea maritime breezes providing reliable ventilation. Vehicle traffic on surrounding roads and the uchiwa fan manufacturing — Marugame producing 90% of Japan's traditional fans — and port corridor contribute local sources, while the outstanding coastal exposure and the distinctive uchiwa paper and lacquer emissions represent Marugame's most locally unique craft air quality signature throughout most of the year.
Today - 16 July | Pollution peaks at 16:00
AQI:
Poor
61.6/100
PM2.5 (fine particles):
Good
10.3/100
PM10 (coarse particles):
Good
3.2/100
NO2 (nitrogen dioxide):
Good
4.2/100
O3 (ozone):
Poor
61.6/100
SO2 (sulfur dioxide):
Good
1.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.3/100
PM1 (ultrafine particles):
Good
12.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Very poor
100/100
PM2.5 (fine particles):
Fair
21.9/100
PM10 (coarse particles):
Good
6.6/100
NO2 (nitrogen dioxide):
Good
5.0/100
O3 (ozone):
Very poor
100/100
SO2 (sulfur dioxide):
Good
2.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
13.4/100
PM1 (ultrafine particles):
Fair
26.7/100
Frequently Asked Questions
Is air quality bad in Marugame right now?
On 16 July 2026, overall air quality in Marugame is poor. AQI is the main air quality indicator at 61.6/100. Pollution peaks around 4:00 PM (O3: 61.6/100).
Will air quality be worse tomorrow in Marugame?
On 17 July 2026, air quality conditions in Marugame will be worse than today, with AQI forecast at very poor at 100/100. Pollution peaks around 3:00 PM (O3: 100/100).
When is air pollution at its worst in Marugame?
The biggest local contributors to pollution in Marugame are road traffic, light manufacturing, as well as shipbuilding and port operations, particularly once the sea breeze weakens. Maritime airflow normally ventilates the area well, though calmer spells let levels rise. This natural ventilation is one reason coastal areas often see better readings than inland cities.
Are air quality levels in Marugame 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