Air Quality in Ranzan, Japan

Partly Cloudy
22.5°C · 59.4% humidity
22.5°
Feels 22.5°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
21 stations

Nearby Monitoring Stations

AQI Forecast
25 6am
25
25
20 9am
21
22
23 12pm
24
24
26 3pm
34
34
54 6pm
54
54
66 9pm
66
83
83 12am
66
66
66 3am
54
66
AD 728×90

Air Quality Index Trend

47h · 56 stn

Ranzan'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.

59.4%
Humidity
0.9 km/h
Wind NW
1015.2 hPa
Pressure
12.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
20
4.71 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Ranzan?

Temperature & Precipitation

PM2.5 Trend

47h · 56 stations
PM2.54.71 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX12.9
Extreme
AD 300×250
Station readings (21 stations within 25 km)
4.71
Median
4.75
Average
1.4
Low
8.6
High
PM2.5 µg/m³ · Model: 7.1 · Bias: +2.4

What is the 7-day forecast for Ranzan?

06-09
25.3° 22.5°
06-10
29.1° 19.1°
27.56 mm
06-11
28.2° 19.2°
1.25 mm
06-12
25.8° 20.0°
0.62 mm
06-13
34.5° 22.5°
06-14
31.7° 18.4°
10.81 mm
06-15
28.5° 19.4°
2.0 mm
Both models agree Avg diff: 3.5°C

Where are air quality stations near Ranzan?

53
Ōtsuka, Saitama-ken, Japan (小川比企郡小川町)
4.8 km PM2.5: 13.1 µg/m³
29
Ōtsuka, Saitama-ken, Japan (小川比企郡小川町)
4.8 km PM2.5: 7.0 µg/m³
72
Matsuyama, Higashimatsuyama, Saitama Prefecture, Japan (東松山岩鼻自排東松山市)
8.5 km PM2.5: 22.1 µg/m³
31
Matsuyama, Higashimatsuyama, Saitama Prefecture, Japan (東松山岩鼻自排東松山市)
8.5 km PM2.5: 7.4 µg/m³
21
Goryocho, Higashimatsuyama, Saitama, Japan (東松山東松山市)
9.4 km PM2.5: 5.0 µg/m³
2
Goryocho, Higashimatsuyama, Saitama, Japan (東松山東松山市)
9.4 km PM2.5: 0.5 µg/m³
58
Iwai, Saitama Prefecture, Japan (毛呂山入間郡毛呂山町)
11.5 km PM2.5: 15.4 µg/m³
44
Iwai, Saitama Prefecture, Japan (毛呂山入間郡毛呂山町)
11.5 km PM2.5: 10.6 µg/m³
29
Ashiyamachō, Sakado-shi, Saitama-ken, Japan (坂戸坂戸市)
12.1 km PM2.5: 7.0 µg/m³
35
Ashiyamachō, Sakado-shi, Saitama-ken, Japan (坂戸坂戸市)
12.1 km PM2.5: 8.4 µg/m³

What cities are near Ranzan?

23 Ogawamachi 17 Yamata 6 Higashi-Matsuyama 15 Kumagaya 21 Yorii 22 Sakado 17 Fukiage-fujimi 23 Tsurugashima 20 Morohongō 19 Ōgushi
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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 2026-06-09T00:40 UTC.