Worst air pollution Nakatsugawa, today and tomorrow
Today (16 July): Air quality in Nakatsugawa is fair. PM2.5 and PM1 are fair; AQI and O3 are medium; PM10, NO2, SO2, CO, and HCHO are good. Pollution peaks around 12:00 PM (O3: 48.8/100).
Tomorrow (17 July 2026): Air quality in Nakatsugawa is poor. AQI worsens to poor; PM2.5 decreases to good; O3 increases to poor; HCHO increases to fair; PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 68.6/100). 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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Nakatsugawa's air quality reflects the Gifu Prefecture Kiso River valley's partial enclosure between the Kiso and Ena mountains at 430 metres, with vehicle traffic on surrounding roads and the traditional Nakasendo post town tourism, manufacturing, and agricultural corridor contributing local sources. The surrounding Kiso mountain ranges create topographic enclosure, while the Kiso River valley provides limited ventilation and Nakatsugawa generally maintains moderate to good conditions for a Japanese inland Gifu mountain valley city throughout most of the year.
Today - 16 July | Pollution peaks at 12:00
AQI:
Medium
48.8/100
PM2.5 (fine particles):
Fair
22.6/100
PM10 (coarse particles):
Good
6.4/100
NO2 (nitrogen dioxide):
Good
7.7/100
O3 (ozone):
Medium
48.8/100
SO2 (sulfur dioxide):
Good
3.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
18.1/100
PM1 (ultrafine particles):
Fair
27.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 16:00
AQI:
Poor
68.6/100
PM2.5 (fine particles):
Good
11.6/100
PM10 (coarse particles):
Good
3.3/100
NO2 (nitrogen dioxide):
Good
8.2/100
O3 (ozone):
Poor
68.6/100
SO2 (sulfur dioxide):
Good
1.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
20.1/100
PM1 (ultrafine particles):
Good
15.7/100
Frequently Asked Questions
Is air quality bad in Nakatsugawa right now?
On 16 July 2026, overall air quality in Nakatsugawa is fair. PM1 is the main pollutant at 27.0/100. Pollution peaks around 12:00 PM (O3: 48.8/100).
Will air quality be worse tomorrow in Nakatsugawa?
On 17 July 2026, air quality conditions in Nakatsugawa will be worse than today, with AQI forecast at poor at 68.6/100. Pollution peaks around 4:00 PM (O3: 68.6/100).
When is air pollution at its worst in Nakatsugawa?
Air quality in Nakatsugawa tends to be worse when traffic emissions, textile and manufacturing operations, along with agricultural burning build up and weather conditions turn unfavourable. Local weather patterns add further variation on top of these sources. Background emissions and local weather both play a role in day-to-day changes.
Are air quality levels in Nakatsugawa 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