Worst air pollution Kita-ku, today and tomorrow
Today (17 August): Air quality in Kita-ku is fair. AQI, PM2.5, NO2, SO2, and PM1 are fair; PM10, O3, CO, and HCHO are good. Pollution peaks around 11:00 PM (PM1: 30.0/100).
Tomorrow (18 August 2026): Air quality in Kita-ku is fair. All pollutants stay as today. Pollution peaks around 12:00 AM (PM1: 32.2/100). 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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Kita-ku's air quality reflects Tokyo's northern residential and commercial district, with vehicle traffic on surrounding expressways and the dense urban residential and shopping character contributing elevated NOₓ. The flat Kanto Plain allows reasonable dispersal, while the broader Tokyo metropolitan regional emissions elevate background and summer photochemical ozone from the vast Kanto corridor is the primary warm-season concern and Kita generally maintains moderate Tokyo northern residential district readings throughout most of the year.
Today - 17 August | Pollution peaks at 23:00
AQI:
Fair
30.0/100
PM2.5 (fine particles):
Fair
23.1/100
PM10 (coarse particles):
Good
6.4/100
NO2 (nitrogen dioxide):
Fair
25.2/100
O3 (ozone):
Good
9.8/100
SO2 (sulfur dioxide):
Fair
21.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.6/100
PM1 (ultrafine particles):
Fair
30.0/100
Levels show the poorest local air quality during the day
Tomorrow - 18 August | Pollution peaks at 00:00
AQI:
Fair
32.2/100
PM2.5 (fine particles):
Fair
24.8/100
PM10 (coarse particles):
Good
6.9/100
NO2 (nitrogen dioxide):
Fair
22.4/100
O3 (ozone):
Good
12.8/100
SO2 (sulfur dioxide):
Fair
27.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.0/100
PM1 (ultrafine particles):
Fair
32.2/100
Frequently Asked Questions
Is air quality bad in Kita-ku right now?
On 17 August 2026, overall air quality in Kita-ku is fair. AQI is the main air quality indicator at 30.0/100. Pollution peaks around 11:00 PM (PM1: 30.0/100).
Will air quality be worse tomorrow in Kita-ku?
On 18 August 2026, air quality conditions in Kita-ku will be similar to today, with AQI forecast at fair at 32.2/100. Pollution peaks around 12:00 AM (PM1: 32.2/100).
When is air pollution at its worst in Kita-ku?
The biggest local contributors to pollution in Kita-ku are road traffic as well as petrochemical and refining operations, particularly once hot, still weather settles in. Heat and sunlight combine with emissions to form ozone at ground level. Cooler temperatures for the rest of the year keep this in check.
Are air quality levels in Kita-ku 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: 17 August 2026 at 02:28 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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