Worst air pollution Nagaoka, today and tomorrow
Today (16 July): Air quality in Nagaoka is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 56.3/100).
Tomorrow (17 July 2026): Air quality in Nagaoka is fair. PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 PM (O3: 51.6/100). 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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Suncheon's air quality benefits from its exceptional South Sea and Suncheon Bay national garden position in Jeonnam, with consistent South Sea maritime breezes providing reliable ventilation. Vehicle traffic on surrounding roads and the agricultural, services, and ecological tourism corridor contribute modest local sources, while the outstanding Suncheon Bay wetland reserve and the coastal position generally maintain Suncheon among South Korea's more pleasantly ventilated southwestern coastal cities throughout most of the year.
Today - 16 July | Pollution peaks at 12:00
AQI:
Medium
56.3/100
PM2.5 (fine particles):
Good
14.6/100
PM10 (coarse particles):
Good
4.3/100
NO2 (nitrogen dioxide):
Good
8.6/100
O3 (ozone):
Medium
56.3/100
SO2 (sulfur dioxide):
Good
2.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
13.8/100
PM1 (ultrafine particles):
Good
17.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Medium
51.6/100
PM2.5 (fine particles):
Good
17.4/100
PM10 (coarse particles):
Good
4.8/100
NO2 (nitrogen dioxide):
Good
8.6/100
O3 (ozone):
Medium
51.6/100
SO2 (sulfur dioxide):
Good
3.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.4/100
PM1 (ultrafine particles):
Fair
22.0/100
Frequently Asked Questions
Is air quality bad in Nagaoka right now?
On 16 July 2026, overall air quality in Nagaoka is medium. AQI is the main air quality indicator at 56.3/100. Pollution peaks around 12:00 PM (O3: 56.3/100).
Will air quality be worse tomorrow in Nagaoka?
On 17 July 2026, air quality conditions in Nagaoka will be worse than today, with PM1 forecast at fair at 22.0/100. Pollution peaks around 12:00 PM (O3: 51.6/100).
When is air pollution at its worst in Nagaoka?
Nagaoka usually sees its poorest air quality when traffic emissions, crop farming, along with seasonal tourism traffic coincide with periods when onshore breezes fall calm. 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 Nagaoka 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