Air Quality in Kōzan, Japan
Cloudy
23.1°C · 85.9% humidity
23.1°
Feels 23.1°
12
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations
Nearby Monitoring Stations
Kōzan's air quality — share it
AQI Forecast
Calibrated
10
8am
10
12
12
11am
19
19
39
2pm
39
39
39
5pm
39
39
39
8pm
39
19
19
11pm
19
19
19
2am
19
19
19
5am
19
19
Station readings
48h ago
AQI 10
PM2.5 2.4 µg/m³ · 48h ago
Air Quality Index Trend
43h · 20 stnKōzan's air quality is influenced by industrial emissions, vehicle traffic, and regional pollution transport. Winter heating season and spring dust events typically create the most challenging air quality conditions.
85.9%
Humidity
26.1 km/h
Wind NE
1006.3 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
2.82 µg/m³
PM10▲
13.7 µg/m³
050100150200300500
What is the weather forecast for Kōzan?
Temperature & Precipitation
PM2.5 Trend
43h · 20 stationsPM2.52.82 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX2.2
Moderate
Station readings (2 stations within 25 km)
2.82
Median
2.9
Average
2.4
Low
3.4
High
PM2.5 µg/m³ · Model: 6.0 · Bias: +3.2
What is the 7-day forecast for Kōzan?
08-03
33.7° 23.1°
08-04
33.3° 24.2°
2.5 mm
08-05
28.8° 24.0°
6.88 mm
08-06
26.1° 23.8°
0.13 mm
08-07
31.3° 22.6°
2.31 mm
08-08
33.9° 22.5°
0.88 mm
08-09
32.0° 22.4°
0.19 mm
Both models agree
Avg diff: 3.1°C
Where are air quality stations near Kōzan?
11
Miyaoki, Mihara, Hiroshima, Japan (三原宮沖町三原市)
18
Fukuyama, Hiroshima Prefecture, Japan (松永小学校福山市)
11
Tōkaichimachi, Miyoshi-shi, Hiroshima-ken, Japan (三次市十日市町三次市)
What cities are near Kōzan?
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T02:05 UTC.