Worst air pollution Chiba, today and tomorrow
Today (16 July): Air quality in Chiba is fair. AQI, O3, and PM1 are fair; PM2.5, PM10, NO2, SO2, CO, and HCHO are good. Pollution peaks around 2:00 PM (O3: 28.9/100).
Tomorrow (17 July 2026): Air quality in Chiba is fair. O3 decreases to good; all other pollutants stay as today. Pollution peaks around 1:00 AM (PM1: 20.7/100). 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
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Chiba's air quality reflects the Tokyo metropolitan area's southeastern industrial waterfront on Tokyo Bay, with vehicle traffic on surrounding expressways and the Chiba industrial complex's steel, oil refining, and chemical operations generating elevated industrial SO₂ and PM2.5. Tokyo Bay's limited maritime ventilation provides some coastal influence, while the extraordinary industrial waterfront scale makes Chiba Tokyo's most distinctively heavy industrial bay-side metropolitan environment and summer photochemical ozone is the primary warm-season concern throughout the year.
Today - 16 July | Pollution peaks at 14:00
AQI:
Fair
28.9/100
PM2.5 (fine particles):
Good
16.3/100
PM10 (coarse particles):
Good
4.7/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
28.9/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
8.1/100
PM1 (ultrafine particles):
Fair
21.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 01:00
AQI:
Fair
20.7/100
PM2.5 (fine particles):
Good
17.2/100
PM10 (coarse particles):
Good
5.3/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Good
16.0/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
5.4/100
PM1 (ultrafine particles):
Fair
20.7/100
Frequently Asked Questions
Is air quality bad in Chiba right now?
On 16 July 2026, overall air quality in Chiba is fair. AQI is the main air quality indicator at 28.9/100. Pollution peaks around 2:00 PM (O3: 28.9/100).
Will air quality be worse tomorrow in Chiba?
On 17 July 2026, air quality conditions in Chiba will be similar to today, with AQI forecast at fair at 20.7/100. Pollution peaks around 1:00 AM (PM1: 20.7/100).
When is air pollution at its worst in Chiba?
Pollution in Chiba typically rises when road traffic together with heavy industrial and chemical processing combine, especially once windblown dust events occur. These wind events can carry dust in from the surrounding arid landscape. Photochemical reactions in the heat push ozone levels higher.
Are air quality levels in Chiba 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