Worst air pollution Tsukubamirai, today and tomorrow
Today (16 July): Air quality in Tsukubamirai is fair. PM2.5 and PM1 are fair; AQI and O3 are medium; PM10, NO2, SO2, CO, and HCHO are good. Pollution peaks around 1:00 PM (O3: 58.8/100).
Tomorrow (17 July 2026): Air quality in Tsukubamirai is fair. AQI worsens to fair; PM2.5 decreases to good; NO2 increases to fair; O3 decreases to good; PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 10:00 AM (NO2: 25.2/100). 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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Tsukubamirai's air quality reflects the flat Ibaraki Prefecture Kinu River plain position adjacent to the Tsukuba Science City corridor, with vehicle traffic on surrounding roads and the manufacturing, residential, and research character 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 Tsukubamirai generally maintains moderate Japanese Ibaraki suburban readings throughout most of the year.
Today - 16 July | Pollution peaks at 13:00
AQI:
Medium
58.8/100
PM2.5 (fine particles):
Fair
20.1/100
PM10 (coarse particles):
Good
5.8/100
NO2 (nitrogen dioxide):
Good
19.5/100
O3 (ozone):
Medium
58.8/100
SO2 (sulfur dioxide):
Good
10.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
12.0/100
PM1 (ultrafine particles):
Fair
23.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 10:00
AQI:
Fair
25.2/100
PM2.5 (fine particles):
Good
13.5/100
PM10 (coarse particles):
Good
3.9/100
NO2 (nitrogen dioxide):
Fair
25.2/100
O3 (ozone):
Good
19.5/100
SO2 (sulfur dioxide):
Good
15.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.1/100
PM1 (ultrafine particles):
Good
18.1/100
Frequently Asked Questions
Is air quality bad in Tsukubamirai right now?
On 16 July 2026, overall air quality in Tsukubamirai is fair. PM1 is the main pollutant at 23.7/100. Pollution peaks around 1:00 PM (O3: 58.8/100).
Will air quality be worse tomorrow in Tsukubamirai?
On 17 July 2026, air quality conditions in Tsukubamirai will be similar to today, with AQI forecast at fair at 25.2/100. Pollution peaks around 10:00 AM (NO2: 25.2/100).
When is air pollution at its worst in Tsukubamirai?
The biggest local contributors to pollution in Tsukubamirai are road traffic, heavy industry such as steel, cement, or petrochemical processing, as well as textile and manufacturing operations, particularly once summer heat and strong sunlight build up. Photochemical reactions in the heat push ozone levels higher. Readings are generally lower during the cooler, cloudier months.
Are air quality levels in Tsukubamirai 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.
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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