Air Quality in Iwai, Japan

Drizzle
22.0°C · 83.0% humidity
22.0°
Feels 22.0°
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
12 stations

Nearby Monitoring Stations

AQI Forecast
66 8pm
66
54
28 11pm
35
41
44 2am
47
49
50 5am
51
52
53 8am
53
33
54 11am
54
54
54 2pm
54
54
54 5pm
54
54
AD 728×90

Air Quality Index Trend

48h · 2 stn

Iwai'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 Iwai is 1.4× the WHO annual guideline of 5 µg/m³.

83.0%
Humidity
16.5 km/h
Wind NE
1004.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
28
6.78 µg/m³
PM10▲
38
41.15 µg/m³
050100150200300500

What is the weather forecast for Iwai?

Temperature & Precipitation

PM2.5 Trend

48h · 2 stations
PM2.56.78 µg/m³ ✓ WHO
Good
PM1041.15 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (12 stations within 25 km)
6.78
Median
7.04
Average
3.0
Low
14.0
High
PM2.5 µg/m³ · Model: 16.35 · Bias: +9.6

What is the 7-day forecast for Iwai?

05-29
22.2° 17.2°
0.63 mm
05-30
21.8° 16.1°
0.88 mm
05-31
24.1° 17.0°
06-01
25.5° 18.1°
06-02
24.8° 16.5°
2.5 mm
06-03
26.1° 18.8°
0.56 mm
06-04
24.7° 14.3°
0.06 mm
Both models agree Avg diff: 3.0°C

Where are air quality stations near Iwai?

4
Higashioume, Oume, Tokyo, Japan (青梅市東青梅青梅市)
5.7 km PM2.5: 1.0 µg/m³
25
檜原測定所
8.0 km 68.5% RH PM2.5: 6.0 µg/m³ PM10: 9.0 µg/m³
46
Honchō, Fussa-shi, Tōkyō-to, Japan (福生市本町福生市)
8.9 km PM2.5: 11.0 µg/m³
38
Honchō, Fussa-shi, Tōkyō-to, Japan (福生市本町福生市)
8.9 km PM2.5: 9.1 µg/m³
23
Nagaoka, Tokyo, Japan (東京環状長岡西多摩郡瑞穂町)
9.8 km PM2.5: 5.5 µg/m³
25
八王子市大楽寺町
10.3 km 27.0% RH PM2.5: 6.0 µg/m³ PM10: 8.0 µg/m³
68
Hachioji (八王子)
11.9 km PM2.5: 20.2 µg/m³
55
Namiyanagi, Hannō-shi, Saitama-ken, Japan (飯能飯能市)
14.6 km PM2.5: 14.0 µg/m³
17
Namiyanagi, Hannō-shi, Saitama-ken, Japan (飯能飯能市)
14.6 km PM2.5: 4.1 µg/m³
66
Tatemachi, Hachioji, Tokyo, Japan (八王子市館町八王子市)
14.8 km PM2.5: 19.2 µg/m³

What cities are near Iwai?

28 Akiruno 28 Itsukaichi 30 Ōme 29 Hamura 28 Fussa 30 Hakonegasaki 28 Hachiōji 27 Yokota 25 Akishima 34 Hannō
Get AQI alerts for Iwai

Notify me when air quality reaches:

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-29T14:46 UTC.