Worst air pollution Izumo, today and tomorrow
Today (16 July): Air quality in Izumo is poor. AQI and O3 are poor; NO2 is fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (O3: 62.9/100).
Tomorrow (17 July 2026): Air quality in Izumo is poor. PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 PM (O3: 62.5/100). 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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Izumo's air quality benefits from its exceptional Shimane Prefecture Sea of Japan and Nakaumi lagoon coastal position adjacent to the famous Izumo Taisha shrine, with consistent Sea of Japan maritime breezes providing reliable ventilation. Vehicle traffic on surrounding roads and the electronics, tourism, and agricultural corridor contribute local sources, while the outstanding coastal exposure and the Chugoku Mountains create topographic variation and Izumo generally maintains good to moderate conditions for a Japanese San'in heritage coastal city throughout most of the year.
Today - 16 July | Pollution peaks at 16:00
AQI:
Poor
62.9/100
PM2.5 (fine particles):
Good
16.5/100
PM10 (coarse particles):
Good
5.6/100
NO2 (nitrogen dioxide):
Fair
22.6/100
O3 (ozone):
Poor
62.9/100
SO2 (sulfur dioxide):
Good
7.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
12.0/100
PM1 (ultrafine particles):
Good
18.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Poor
62.5/100
PM2.5 (fine particles):
Good
18.6/100
PM10 (coarse particles):
Good
6.2/100
NO2 (nitrogen dioxide):
Fair
23.7/100
O3 (ozone):
Poor
62.5/100
SO2 (sulfur dioxide):
Good
5.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
13.7/100
PM1 (ultrafine particles):
Fair
21.7/100
Frequently Asked Questions
Is air quality bad in Izumo right now?
On 16 July 2026, overall air quality in Izumo is poor. AQI is the main air quality indicator at 62.9/100. Pollution peaks around 4:00 PM (O3: 62.9/100).
Will air quality be worse tomorrow in Izumo?
On 17 July 2026, air quality conditions in Izumo will be similar to today, with AQI forecast at poor at 62.5/100. Pollution peaks around 12:00 PM (O3: 62.5/100).
When is air pollution at its worst in Izumo?
Air quality in Izumo tends to be worse when vehicle traffic, manufacturing activity, along with agricultural burning build up and onshore breezes fall calm. Maritime airflow normally ventilates the area well, though calmer spells let levels rise. Areas further inland without this ventilation tend to fare worse.
Are air quality levels in Izumo 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