Worst air pollution Sado, today and tomorrow
Today (16 July): Air quality in Sado is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 PM (O3: 43.5/100).
Tomorrow (17 July 2026): Air quality in Sado is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 11:00 AM (O3: 36.7/100). 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
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Sado's air quality benefits from its exceptional Niigata Prefecture Sea of Japan island position — Japan's largest island after Hokkaido and Okinawa — with consistent Sea of Japan maritime breezes providing outstanding maritime ventilation. Vehicle traffic on surrounding roads and the gold mine heritage, tarai bune boat fishing, and Kodo drumming tourism corridor contribute modest local sources, while the extraordinary island coastal exposure generally maintains Sado among Japan's cleaner inhabited island environments throughout most of the year.
Today - 16 July | Pollution peaks at 13:00
AQI:
Medium
43.5/100
PM2.5 (fine particles):
Good
14.1/100
PM10 (coarse particles):
Good
5.1/100
NO2 (nitrogen dioxide):
Good
11.5/100
O3 (ozone):
Medium
43.5/100
SO2 (sulfur dioxide):
Good
5.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.3/100
PM1 (ultrafine particles):
Good
11.4/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 11:00
AQI:
Fair
36.7/100
PM2.5 (fine particles):
Good
11.0/100
PM10 (coarse particles):
Good
3.6/100
NO2 (nitrogen dioxide):
Good
11.3/100
O3 (ozone):
Fair
36.7/100
SO2 (sulfur dioxide):
Good
4.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.9/100
PM1 (ultrafine particles):
Good
10.7/100
Frequently Asked Questions
Is air quality bad in Sado right now?
On 16 July 2026, overall air quality in Sado is medium. AQI is the main air quality indicator at 43.5/100. Pollution peaks around 1:00 PM (O3: 43.5/100).
Will air quality be worse tomorrow in Sado?
On 17 July 2026, air quality conditions in Sado will be worse than today, with AQI forecast at fair at 36.7/100. Pollution peaks around 11:00 AM (O3: 36.7/100).
When is air pollution at its worst in Sado?
In Sado, traffic on the surrounding roads, harbour and shipping traffic, and seasonal tourism traffic are the main local sources, with conditions worsening when maritime winds die down. Onshore breezes usually help clear the air, but pollution can build up when winds are light. This coastal advantage is less pronounced during still, high-pressure weather.
Are air quality levels in Sado 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