Worst air pollution Tendō, today and tomorrow
Today (16 July): Air quality in Tendō is fair. AQI, NO2, O3, and HCHO are fair; PM2.5, PM10, SO2, CO, and PM1 are good. Pollution peaks around 11:00 AM (O3: 35.3/100).
Tomorrow (17 July 2026): Air quality in Tendō is fair. HCHO decreases to good; all other pollutants stay as today. Pollution peaks around 12:00 PM (O3: 35.2/100). 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
Use our Strava plugin to check your own exposure.
Tendō's air quality reflects the Yamagata Prefecture Mogami River valley position, with vehicle traffic on surrounding roads and the shogi chess piece manufacturing — Tendō producing 95% of Japan's shogi pieces — and agricultural corridor contributing distinctive wood processing emissions alongside primary vehicle sources. Sea of Japan maritime breezes provide background ventilation, while the shogi manufacturing's distinctive wooden lacquer and paint emissions represent Tendō's most locally unique craft air quality characteristic throughout the year.
Today - 16 July | Pollution peaks at 11:00
AQI:
Fair
35.3/100
PM2.5 (fine particles):
Good
12.5/100
PM10 (coarse particles):
Good
3.5/100
NO2 (nitrogen dioxide):
Fair
26.3/100
O3 (ozone):
Fair
35.3/100
SO2 (sulfur dioxide):
Good
5.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
20.8/100
PM1 (ultrafine particles):
Good
16.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Fair
35.2/100
PM2.5 (fine particles):
Good
10.5/100
PM10 (coarse particles):
Good
2.8/100
NO2 (nitrogen dioxide):
Fair
25.4/100
O3 (ozone):
Fair
35.2/100
SO2 (sulfur dioxide):
Good
6.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
19.8/100
PM1 (ultrafine particles):
Good
14.8/100
Frequently Asked Questions
Is air quality bad in Tendō right now?
On 16 July 2026, overall air quality in Tendō is fair. AQI is the main air quality indicator at 35.3/100. Pollution peaks around 11:00 AM (O3: 35.3/100).
Will air quality be worse tomorrow in Tendō?
On 17 July 2026, air quality conditions in Tendō will be similar to today, with AQI forecast at fair at 35.2/100. Pollution peaks around 12:00 PM (O3: 35.2/100).
When is air pollution at its worst in Tendō?
Air quality in Tendō tends to be worse when road traffic, manufacturing activity, and agricultural activity build up and the sea breeze weakens. Sea breezes typically keep conditions in check, except during still weather. This natural ventilation is one reason coastal areas often see better readings than inland cities.
Are air quality levels in Tendō 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.
Check air quality in other popular cities:
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