Worst air pollution Chikusei, today and tomorrow
Today (16 July): Air quality in Chikusei is poor. AQI and O3 are poor; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 PM (O3: 63.5/100).
Tomorrow (17 July 2026): Air quality in Chikusei is fair. AQI improves to fair; O3 decreases to fair; all other pollutants stay as today. Pollution peaks around 1:00 PM (O3: 29.8/100). 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
Use our Strava plugin to check your own exposure.
Chikusei's air quality reflects the flat Ibaraki Prefecture Kinugawa River plain position, with vehicle traffic on surrounding roads and the agricultural, food processing, and manufacturing corridor contributing local sources. The flat Kanto Plain allows reasonable dispersal, while summer photochemical ozone from the broader Kanto corridor is the primary warm-season concern and Chikusei generally maintains moderate Japanese inland Kanto plain readings throughout most of the year.
Today - 16 July | Pollution peaks at 13:00
AQI:
Poor
63.5/100
PM2.5 (fine particles):
Good
14.4/100
PM10 (coarse particles):
Good
4.3/100
NO2 (nitrogen dioxide):
Good
16.7/100
O3 (ozone):
Poor
63.5/100
SO2 (sulfur dioxide):
Good
8.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
11.9/100
PM1 (ultrafine particles):
Good
17.3/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 13:00
AQI:
Fair
29.8/100
PM2.5 (fine particles):
Good
12.7/100
PM10 (coarse particles):
Good
3.7/100
NO2 (nitrogen dioxide):
Good
15.1/100
O3 (ozone):
Fair
29.8/100
SO2 (sulfur dioxide):
Good
8.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.7/100
PM1 (ultrafine particles):
Good
16.0/100
Frequently Asked Questions
Is air quality bad in Chikusei right now?
On 16 July 2026, overall air quality in Chikusei is poor. AQI is the main air quality indicator at 63.5/100. Pollution peaks around 1:00 PM (O3: 63.5/100).
Will air quality be worse tomorrow in Chikusei?
On 17 July 2026, air quality conditions in Chikusei will be better than today, with AQI forecast at fair at 29.8/100. Pollution peaks around 1:00 PM (O3: 29.8/100).
When is air pollution at its worst in Chikusei?
In Chikusei, traffic on the surrounding roads, petrochemical and refining operations, and manufacturing activity are the main local sources, with conditions worsening when hot, still weather settles in. Photochemical reactions in the heat push ozone levels higher. This is far less of an issue outside the warmer months.
Are air quality levels in Chikusei 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.
Check air quality in other popular cities:
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