Koihonmachi, Hiroshima Prefecture, Japan (庚午広島市西区) Air Quality
Monitoring Station
· Hiroshima, Japan
31
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading
Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
Calibrated
37
9pm
34
31
66
12am
49
49
49
3am
49
49
49
6am
37
37
37
9am
37
37
—
12pm
—
—
—
3pm
—
—
—
6pm
—
—
Station readings
34
31
CAMS model
adj -17
54
54
66
83
66
66
66
66
66
66
54
54
54
54
54
Air Quality Trend (24h)
PM2.57.4 µg/m³
✓ WHO
Good
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Nearby Cities
Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-05-29T00:18 UTC.