Worst air pollution Arakawa, today and tomorrow
Today (16 July): Air quality in Arakawa 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: 52.8/100).
Tomorrow (17 July 2026): Air quality in Arakawa is fair. AQI worsens to fair; O3 decreases to good; all other pollutants stay as today. Pollution peaks around 2:00 AM (PM1: 30.1/100). 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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Arakawa in Tokyo reflects the northeastern Tokyo metropolitan industrial and residential district, with vehicle traffic on surrounding expressways and the dense urban industrial, commercial, and residential character contributing elevated NOₓ alongside the Arakawa River's limited corridor ventilation. The flat Kanto Plain allows reasonable dispersal, while the broader Tokyo metropolitan regional emissions elevate background and summer photochemical ozone is the primary warm-season concern throughout most of the year.
Today - 16 July | Pollution peaks at 13:00
AQI:
Medium
52.8/100
PM2.5 (fine particles):
Fair
23.3/100
PM10 (coarse particles):
Good
6.6/100
NO2 (nitrogen dioxide):
Good
17.0/100
O3 (ozone):
Medium
52.8/100
SO2 (sulfur dioxide):
Good
8.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
11.5/100
PM1 (ultrafine particles):
Fair
28.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 02:00
AQI:
Fair
30.1/100
PM2.5 (fine particles):
Fair
23.8/100
PM10 (coarse particles):
Good
6.6/100
NO2 (nitrogen dioxide):
Good
19.4/100
O3 (ozone):
Good
15.4/100
SO2 (sulfur dioxide):
Good
14.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.4/100
PM1 (ultrafine particles):
Fair
30.1/100
Frequently Asked Questions
Is air quality bad in Arakawa right now?
On 16 July 2026, overall air quality in Arakawa is fair. PM1 is the main pollutant at 28.7/100. Pollution peaks around 1:00 PM (O3: 52.8/100).
Will air quality be worse tomorrow in Arakawa?
On 17 July 2026, air quality conditions in Arakawa will be similar to today, with AQI forecast at fair at 30.1/100. Pollution peaks around 2:00 AM (PM1: 30.1/100).
When is air pollution at its worst in Arakawa?
Pollution in Arakawa typically rises when vehicle traffic together with heavy industry such as steel, cement, or petrochemical processing combine, especially once windblown dust events occur. Dust carried on these winds adds substantially to particulate levels. Photochemical reactions in the heat push ozone levels higher.
Are air quality levels in Arakawa 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