Worst air pollution Hatsukaichi, today and tomorrow
Today (16 July): Air quality in Hatsukaichi is poor. AQI and O3 are poor; NO2 is fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 61.3/100).
Tomorrow (17 July 2026): Air quality in Hatsukaichi is poor. All pollutants stay as today. Pollution peaks around 11:00 AM (O3: 68.9/100). 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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Hatsukaichi's air quality benefits from its exceptional Hiroshima Prefecture Hiroshima Bay and Miyajima Island coastal position, with consistent Seto Inland Sea maritime breezes providing reliable ventilation adjacent to the famous UNESCO Itsukushima shrine. Vehicle traffic on surrounding roads and the woodworking, Miyajima tourism, and residential character contribute local sources, while the outstanding coastal exposure and the iconic Miyajima torii gate setting create distinctive topographic variation and Hatsukaichi generally maintains good to moderate conditions throughout most of the year.
Today - 16 July | Pollution peaks at 15:00
AQI:
Poor
61.3/100
PM2.5 (fine particles):
Good
14.0/100
PM10 (coarse particles):
Good
4.3/100
NO2 (nitrogen dioxide):
Fair
20.3/100
O3 (ozone):
Poor
61.3/100
SO2 (sulfur dioxide):
Good
5.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
14.1/100
PM1 (ultrafine particles):
Good
17.6/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 11:00
AQI:
Poor
68.9/100
PM2.5 (fine particles):
Good
14.6/100
PM10 (coarse particles):
Good
4.9/100
NO2 (nitrogen dioxide):
Fair
20.3/100
O3 (ozone):
Poor
68.9/100
SO2 (sulfur dioxide):
Good
6.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
15.1/100
PM1 (ultrafine particles):
Good
18.5/100
Frequently Asked Questions
Is air quality bad in Hatsukaichi right now?
On 16 July 2026, overall air quality in Hatsukaichi is poor. AQI is the main air quality indicator at 61.3/100. Pollution peaks around 3:00 PM (O3: 61.3/100).
Will air quality be worse tomorrow in Hatsukaichi?
On 17 July 2026, air quality conditions in Hatsukaichi will be similar to today, with AQI forecast at poor at 68.9/100. Pollution peaks around 11:00 AM (O3: 68.9/100).
When is air pollution at its worst in Hatsukaichi?
Hatsukaichi usually sees its poorest air quality when traffic on the surrounding roads along with seasonal tourism traffic coincide with periods when the sea breeze weakens. Maritime airflow normally ventilates the area well, though calmer spells let levels rise. This natural ventilation is one reason coastal areas often see better readings than inland cities.
Are air quality levels in Hatsukaichi 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