Air Quality in Ranzan, Japan

Drizzle
22.7°C · 88.3% humidity
22.7°
Feels 22.7°
24
Good
Air quality is satisfactory. Enjoy outdoor activities.
18 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
23 5pm
23
25
24 8pm
25
23
23 11pm
23
23
23 2am
23
23
23 5am
23
23
23 8am
23
25
32 11am
32
25
25 2pm
25
32
Station readings 16h ago
AQI 11
PM2.5 2.6 µg/m³ · 16h ago
CAMS model adj -2
25
25
27
27
27
25
25
25
25
25
25
25
25
25
25
25
25
27
34
34
27
27
27
34
AD 728×90

Air Quality Index Trend

4h · 1 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.

88.3%
Humidity
42.1 km/h
Wind E
1010.5 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
24
5.8 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Ranzan?

Temperature & Precipitation

PM2.5 Trend

4h · 1 station
PM2.55.8 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (18 stations within 25 km)
5.8
Median
5.42
Average
2.4
Low
9.1
High
PM2.5 µg/m³ · Model: 6.15 · Bias: +0.3

What is the 7-day forecast for Ranzan?

09-05
27.7° 21.1°
15.06 mm
09-06
30.5° 22.4°
5.87 mm
09-07
30.8° 23.0°
3.88 mm
09-08
29.5° 21.9°
11.38 mm
09-09
26.4° 22.5°
3.38 mm
09-10
26.6° 23.2°
3.38 mm
09-11
32.1° 22.2°
12.56 mm
Both models agree Avg diff: 3.4°C

Where are air quality stations near Ranzan?

34
Matsuyama, Higashimatsuyama, Saitama Prefecture, Japan (東松山岩鼻自排東松山市)
8.5 km PM2.5: 8.2 µg/m³
34
Goryocho, Higashimatsuyama, Saitama, Japan (東松山東松山市)
9.4 km PM2.5: 8.2 µg/m³
24
Iwai, Saitama Prefecture, Japan (毛呂山入間郡毛呂山町)
11.5 km PM2.5: 5.8 µg/m³
15
Iwai, Saitama Prefecture, Japan (毛呂山入間郡毛呂山町)
11.5 km PM2.5: 3.6 µg/m³
13
Ashiyamachō, Sakado-shi, Saitama-ken, Japan (坂戸坂戸市)
12.1 km PM2.5: 3.1 µg/m³
25
Yorii, Saitama, Japan (寄居大里郡寄居町)
13.3 km PM2.5: 6.0 µg/m³
17
Yorii, Saitama, Japan (寄居大里郡寄居町)
13.3 km PM2.5: 4.1 µg/m³
20
Shiroishi, Saitama Prefecture, Japan (東秩父秩父郡東秩父村)
13.5 km PM2.5: 4.8 µg/m³
25
Koizuka, Kumagaya, Saitama, Japan (熊谷肥塚自排熊谷市)
13.7 km PM2.5: 6.0 µg/m³
24
Kawajima, Saitama-ken, Japan (川島自排比企郡川島町)
15.6 km PM2.5: 5.8 µg/m³

What cities are near Ranzan?

22 Ogawamachi 27 Yamata 34 Higashi-Matsuyama 24 Kumagaya 17 Yorii 17 Sakado 24 Fukiage-fujimi 15 Tsurugashima 22 Morohongō 28 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 2026-09-05T11:19 UTC.