Air Quality in Iwai, Japan

Drizzle
22.3°C · 90.2% humidity
22.3°
Feels 22.3°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
17 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
13 5pm
13
13
20 8pm
19
16
15 11pm
14
14
13 2am
12
12
12 5am
12
13
13 8am
13
22
22 11am
22
42
42 2pm
42
42
Station readings 17h ago
AQI 18
PM2.5 4.3 µg/m³ · 17h ago
CAMS model adj -12
25
25
25
27
27
25
25
25
25
24
24
24
24
24
25
25
25
34
34
34
54
54
54
54
AD 728×90

Air Quality Index Trend

45h · 88 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.

90.2%
Humidity
33.5 km/h
Wind NNE
1010.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

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

What is the weather forecast for Iwai?

Temperature & Precipitation

PM2.5 Trend

45h · 88 stations
PM2.54.67 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (17 stations within 25 km)
4.67
Median
5.72
Average
1.2
Low
17.3
High
PM2.5 µg/m³ · Model: 6.15 · Bias: +1.5

What is the 7-day forecast for Iwai?

09-05
28.0° 20.3°
14.94 mm
09-06
29.2° 22.1°
3.88 mm
09-07
31.2° 22.5°
0.06 mm
09-08
28.7° 21.9°
6.5 mm
09-09
27.6° 21.9°
4.69 mm
09-10
28.3° 22.9°
6.44 mm
09-11
32.2° 22.8°
4.94 mm
Both models agree Avg diff: 3.5°C

Where are air quality stations near Iwai?

21
Kirigasaku, Noda, Chiba, Japan (野田桐ケ作野田市)
7.7 km PM2.5: 5.0 µg/m³
17
Kirigasaku, Noda, Chiba, Japan (野田桐ケ作野田市)
7.7 km PM2.5: 4.1 µg/m³
13
Kirigasaku, Noda, Chiba, Japan (野田桐ケ作野田市)
7.7 km PM2.5: 3.1 µg/m³
50
Mitsukaido Morishitamachi, Joso, Ibaraki, Japan (常総保健所常総市)
8.4 km PM2.5: 12.0 µg/m³
25
Miyazaki, Noda, Chiba, Japan (国設野田自動車交通環境測定野田市)
11.5 km PM2.5: 6.0 µg/m³
34
Miyazaki, Noda, Chiba, Japan (国設野田自動車交通環境測定野田市)
11.5 km PM2.5: 8.2 µg/m³
30
Noda, Noda-shi, Chiba-ken, Japan (野田市野田野田市)
11.9 km PM2.5: 7.2 µg/m³
30
Satte, Satte, Saitama, Japan (幸手幸手市)
15.4 km PM2.5: 7.2 µg/m³
34
Satte, Satte, Saitama, Japan (幸手幸手市)
15.4 km PM2.5: 8.2 µg/m³
50
Shimotsumaotsu, Shimotsuma-shi, Ibaraki-ken, Japan (下妻下妻市)
15.9 km PM2.5: 12.0 µg/m³

What cities are near Iwai?

20 Bandō 15 Jōsō 15 Mitsukaidō 23 Ishige 22 Sakai 11 Noda 22 Tsukubamirai 28 Yachiyo 23 Kasukabe 23 Miyashiro
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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 2026-09-05T11:14 UTC.