Air Quality in Kōzan, Japan
Cloudy
26.8°C · 87.1% humidity
26.8°
Feels 26.8°
82
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station
Nearby Monitoring Stations
Kōzan's air quality — share it
AQI Forecast
54
7am
54
54
82
10am
86
80
76
1pm
61
59
58
4pm
57
56
55
7pm
35
35
55
10pm
54
54
54
1am
54
54
54
4am
54
54
Air Quality Index Trend
46h · 10 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. Current PM2.5 concentration in Kōzan is 1.8× the WHO 24-hour guideline of 15 µg/m³.
87.1%
Humidity
38.0 km/h
Wind E
995.9 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
26.8 µg/m³
PM10
34.3 µg/m³
050100150200300500
What is the weather forecast for Kōzan?
Temperature & Precipitation
PM2.5 Trend
46h · 10 stationsPM2.526.8 µg/m³
×1.8 WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX19.9
Extreme
Station readings (1 station within 25 km)
26.8
Median
26.8
Average
26.8
Low
26.8
High
PM2.5 µg/m³ · Model: 16.35 · Bias: -10.4
What is the 7-day forecast for Kōzan?
07-22
31.3° 23.1°
5.06 mm
07-23
26.6° 16.1°
8.94 mm
07-24
29.2° 23.0°
5.25 mm
07-25
31.4° 20.5°
3.06 mm
07-26
30.8° 22.4°
7.56 mm
07-27
32.1° 22.2°
07-28
29.4° 24.2°
4.88 mm
Both models agree
Avg diff: 2.3°C
Where are air quality stations near Kōzan?
26
Fukuyama, Hiroshima Prefecture, Japan (松永小学校福山市)
4
Fukuyama, Hiroshima Prefecture, Japan (松永小学校福山市)
6
Tōkaichimachi, Miyoshi-shi, Hiroshima-ken, Japan (三次市十日市町三次市)
46
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 2026-07-22T01:18 UTC.