Worst air pollution Uwajima, today and tomorrow
Today (16 July): Air quality in Uwajima 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: 71.4/100).
Tomorrow (17 July 2026): Air quality in Uwajima is poor. NO2 increases to fair; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 72.2/100). 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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Uwajima's air quality benefits from its exceptional Ehime Prefecture Uwajima Bay and Uwa Sea coastal position, with consistent Seto Inland Sea and Pacific maritime breezes providing reliable ventilation. Vehicle traffic on surrounding roads and the cultured pearl, cockfighting bullfighting heritage, and services corridor contribute modest local sources, while the outstanding coastal exposure generally maintains Uwajima among Ehime Prefecture's more moderately ventilated coastal cities throughout most of the year.
Today - 16 July | Pollution peaks at 16:00
AQI:
Poor
71.4/100
PM2.5 (fine particles):
Good
15.1/100
PM10 (coarse particles):
Good
5.3/100
NO2 (nitrogen dioxide):
Good
19.8/100
O3 (ozone):
Poor
71.4/100
SO2 (sulfur dioxide):
Good
7.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.6/100
PM1 (ultrafine particles):
Good
17.6/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 16:00
AQI:
Poor
72.2/100
PM2.5 (fine particles):
Good
17.9/100
PM10 (coarse particles):
Good
5.5/100
NO2 (nitrogen dioxide):
Fair
26.5/100
O3 (ozone):
Poor
72.2/100
SO2 (sulfur dioxide):
Good
9.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.2/100
PM1 (ultrafine particles):
Fair
23.0/100
Frequently Asked Questions
Is air quality bad in Uwajima right now?
On 16 July 2026, overall air quality in Uwajima is poor. AQI is the main air quality indicator at 71.4/100. Pollution peaks around 4:00 PM (O3: 71.4/100).
Will air quality be worse tomorrow in Uwajima?
On 17 July 2026, air quality conditions in Uwajima will be similar to today, with AQI forecast at poor at 72.2/100. Pollution peaks around 4:00 PM (O3: 72.2/100).
When is air pollution at its worst in Uwajima?
In Uwajima, vehicle traffic is the main local source, with conditions worsening when the sea breeze weakens. Sea breezes typically keep conditions in check, except during still weather. Areas further inland without this ventilation tend to fare worse.
Are air quality levels in Uwajima 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