Worst air pollution Narita, today and tomorrow
Today (10 August): Air quality in Narita is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 AM (O3: 21.3/100).
Tomorrow (11 August 2026): Air quality in Narita is fair. AQI improves to medium; NO2 increases to fair; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 3:00 PM (O3: 41.7/100). 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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Narita's air quality reflects the flat Chiba Prefecture position adjacent to Narita International Airport — Japan's main international gateway — with the airport's extraordinary concentrated international aviation operations and vehicle traffic on surrounding roads generating elevated NOₓ and ultrafine particles. The flat Kanto Plain allows reasonable dispersal, while the aviation emissions' extraordinary scale relative to the local urban population makes Narita Japan's most distinctively aviation-influenced major urban environment throughout the year.
Today - 10 August | Pollution peaks at 11:00
AQI:
Fair
21.3/100
PM2.5 (fine particles):
Good
5.0/100
PM10 (coarse particles):
Good
1.9/100
NO2 (nitrogen dioxide):
Good
11.2/100
O3 (ozone):
Fair
21.3/100
SO2 (sulfur dioxide):
Good
5.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.2/100
PM1 (ultrafine particles):
Good
3.1/100
Levels show the poorest local air quality during the day
Tomorrow - 11 August | Pollution peaks at 15:00
AQI:
Medium
41.7/100
PM2.5 (fine particles):
Good
8.1/100
PM10 (coarse particles):
Good
2.2/100
NO2 (nitrogen dioxide):
Fair
26.0/100
O3 (ozone):
Medium
41.7/100
SO2 (sulfur dioxide):
Good
13.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.3/100
PM1 (ultrafine particles):
Good
11.4/100
Frequently Asked Questions
Is air quality bad in Narita right now?
On 10 August 2026, overall air quality in Narita is fair. AQI is the main air quality indicator at 21.3/100. Pollution peaks around 11:00 AM (O3: 21.3/100).
Will air quality be worse tomorrow in Narita?
On 11 August 2026, air quality conditions in Narita will be similar to today, with NO2 forecast at fair at 26.0/100. Pollution peaks around 3:00 PM (O3: 41.7/100).
When is air pollution at its worst in Narita?
Air quality in Narita tends to be worse when traffic emissions, military aviation activity, along with shipbuilding and port operations build up and winds are light and dispersion is poor. Day-to-day conditions here depend heavily on the weather. Local weather patterns add further day-to-day variation.
Are air quality levels in Narita 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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