Worst air pollution Kashiwazaki, today and tomorrow
Today (10 August): Air quality in Kashiwazaki is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 31.9/100).
Tomorrow (11 August 2026): Air quality in Kashiwazaki is fair. All pollutants stay as today. Pollution peaks around 12:00 PM (O3: 33.8/100). 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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Kashiwazaki's air quality reflects the Niigata Prefecture Sea of Japan coastal position adjacent to the Kashiwazaki-Kariwa nuclear power station — the world's largest nuclear plant — with vehicle traffic on surrounding roads and the nuclear operations' essentially zero combustion emissions and manufacturing corridor contributing local sources. Consistent Sea of Japan maritime breezes provide coastal ventilation, while the nuclear plant's zero direct combustion character and the outstanding Sea of Japan coastal exposure generally maintain Kashiwazaki among Japan's more moderately ventilated coastal industrial cities throughout most of the year.
Today - 10 August | Pollution peaks at 12:00
AQI:
Fair
31.9/100
PM2.5 (fine particles):
Good
4.7/100
PM10 (coarse particles):
Good
1.8/100
NO2 (nitrogen dioxide):
Good
10.6/100
O3 (ozone):
Fair
31.9/100
SO2 (sulfur dioxide):
Good
2.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.8/100
PM1 (ultrafine particles):
Good
4.2/100
Levels show the poorest local air quality during the day
Tomorrow - 11 August | Pollution peaks at 12:00
AQI:
Fair
33.8/100
PM2.5 (fine particles):
Good
5.1/100
PM10 (coarse particles):
Good
1.9/100
NO2 (nitrogen dioxide):
Good
9.7/100
O3 (ozone):
Fair
33.8/100
SO2 (sulfur dioxide):
Good
2.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.7/100
PM1 (ultrafine particles):
Good
4.5/100
Frequently Asked Questions
Is air quality bad in Kashiwazaki right now?
On 10 August 2026, overall air quality in Kashiwazaki is fair. AQI is the main air quality indicator at 31.9/100. Pollution peaks around 12:00 PM (O3: 31.9/100).
Will air quality be worse tomorrow in Kashiwazaki?
On 11 August 2026, air quality conditions in Kashiwazaki will be similar to today, with AQI forecast at fair at 33.8/100. Pollution peaks around 12:00 PM (O3: 33.8/100).
When is air pollution at its worst in Kashiwazaki?
In Kashiwazaki, vehicle traffic, energy sector operations, together with light manufacturing are the main local sources, with conditions worsening when dry, windy weather picks up. Strong seasonal winds can lift dust from the surrounding dry terrain and push particulate levels sharply higher. Maritime airflow normally ventilates the area well, though calmer spells let levels rise.
Are air quality levels in Kashiwazaki 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 9 August 2026 at 20:27 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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