Koihonmachi, Hiroshima Prefecture, Japan (庚午広島市西区) Air Quality
Monitoring Station
· Hiroshima, Japan
48
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading
Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
Calibrated
26
11pm
59
24
48
2am
24
24
24
5am
24
24
26
8am
26
33
53
11am
53
53
—
2pm
—
—
—
5pm
—
—
—
8pm
—
—
Station readings
59
48
CAMS model
adj -1
27
25
25
25
25
25
25
25
25
27
27
34
54
54
54
Air Quality Forecast (24h)
PM2.511.5 µg/m³
✓ WHO
Good
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25
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17
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34
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30
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28
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39
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5
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21
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Nearby Cities
Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T02:20 UTC.