Worst air pollution Atsugichō, today and tomorrow
Today (21 September): Air quality in Atsugichō is fair. AQI and NO2 are fair; PM2.5, PM10, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (NO2: 33.1/100).
Tomorrow (22 September 2026): Air quality in Atsugichō is moderate. AQI worsens to moderate; PM2.5 increases to fair; PM10 increases to fair; NO2 increases to moderate; SO2 increases to fair; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 6:00 PM (NO2: 50.8/100). 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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Atsugichō in Kanagawa reflects the Kanagawa Prefecture Sagami River valley position adjacent to Atsugi, with vehicle traffic on surrounding roads and the manufacturing, JMSDF Atsugi Air Base aviation operations, and residential character contributing elevated local NOₓ. The Sagami valley provides limited ventilation, while the aviation operations represent the most distinctive local emission source and the area generally maintains moderate Kanagawa suburban corridor readings throughout most of the year.
Today - 21 September | Pollution peaks at 16:00
AQI:
Fair
33.1/100
PM2.5 (fine particles):
Good
12.9/100
PM10 (coarse particles):
Good
9.1/100
NO2 (nitrogen dioxide):
Fair
33.1/100
O3 (ozone):
Good
15.9/100
SO2 (sulfur dioxide):
Good
4.7/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
7.4/100
PM1 (ultrafine particles):
Good
11.7/100
Levels show the poorest local air quality during the day
Tomorrow - 22 September | Pollution peaks at 18:00
AQI:
Moderate
50.8/100
PM2.5 (fine particles):
Fair
36.3/100
PM10 (coarse particles):
Fair
26.2/100
NO2 (nitrogen dioxide):
Moderate
50.8/100
O3 (ozone):
Good
17.4/100
SO2 (sulfur dioxide):
Fair
20.9/100
CO (carbon monoxide):
Good
1.3/100
HCHO (formaldehyde):
Good
9.4/100
PM1 (ultrafine particles):
Fair
32.8/100
Frequently Asked Questions
Is air quality bad in Atsugichō right now?
On 21 September 2026, overall air quality in Atsugichō is fair. AQI is the main air quality indicator at 33.1/100. Pollution peaks around 4:00 PM (NO2: 33.1/100).
Will air quality be worse tomorrow in Atsugichō?
On 22 September 2026, air quality conditions in Atsugichō will be worse than today, with AQI forecast at moderate at 50.8/100. Pollution peaks around 6:00 PM (NO2: 50.8/100).
When is air pollution at its worst in Atsugichō?
Air quality in Atsugichō tends to be worse when traffic emissions, aircraft operations at the local air base, along with manufacturing and food processing build up and still air allows pollutants to build up. Day-to-day conditions here depend heavily on the weather. Conditions can otherwise vary considerably with the weather.
Are air quality levels in Atsugichō 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: 22 September 2026 at 02:59 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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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