Air Quality in Iwase, Japan

Windy
21.8°C · 70.7% humidity
21.8°
Feels 21.8°
45
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast
54 6am
54
54
45 9am
35
40
38 12pm
57
56
55 3pm
55
55
55 6pm
34
34
34 9pm
54
54
34 12am
34
27
27 3am
27
27
AD 728×90

Air Quality Index Trend

47h · 10 stn

Iwase'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 Iwase is 2.1× the WHO annual guideline of 5 µg/m³.

70.7%
Humidity
102.0 km/h
Wind S
998.1 hPa
Pressure
9.4
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
45
10.74 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Iwase?

Temperature & Precipitation

PM2.5 Trend

47h · 10 stations
PM2.510.74 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX9.4
Very High
AD 300×250
Station readings (5 stations within 25 km)
10.74
Median
9.88
Average
6.0
Low
13.1
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +0.1

What is the 7-day forecast for Iwase?

05-29
22.3° 15.6°
5.75 mm
05-30
22.2° 16.1°
1.44 mm
05-31
23.6° 16.2°
0.25 mm
06-01
23.7° 16.8°
06-02
21.9° 15.4°
06-03
26.0° 18.9°
1.25 mm
06-04
24.5° 14.6°
1.37 mm
Both models agree Avg diff: 2.3°C

Where are air quality stations near Iwase?

17
Aramachi, Moka, Tochigi, Japan (真岡市役所真岡市)
12.7 km PM2.5: 4.1 µg/m³
21
Ishii, Kasama, Ibaraki, Japan (笠間市役所笠間市)
12.9 km PM2.5: 5.0 µg/m³
13
Shirasagi, Tochigi, Japan (上三川町役場河内郡上三川町)
19.7 km PM2.5: 3.1 µg/m³
38
Shimotsumaotsu, Shimotsuma-shi, Ibaraki-ken, Japan (下妻下妻市)
22.3 km PM2.5: 9.1 µg/m³
53
Shimotsumaotsu, Shimotsuma-shi, Ibaraki-ken, Japan (下妻下妻市)
22.3 km PM2.5: 13.1 µg/m³
34
Suginami, Ishioka, Ibaraki, Japan (石岡杉並石岡市)
23.2 km PM2.5: 8.2 µg/m³
11
Suzumenomiya, Utsunomiya, Tochigi, Japan (雀宮中学校宇都宮市)
26.2 km PM2.5: 2.6 µg/m³
14
Hiraidemachi, Utsunomiya, Tochigi, Japan (平出宇都宮市)
28.0 km PM2.5: 3.4 µg/m³
25
Hiraidemachi, Utsunomiya, Tochigi, Japan (平出宇都宮市)
28.0 km PM2.5: 6.0 µg/m³
21
Utsunomiya (宇都宮)
30.0 km PM2.5: 5.0 µg/m³

What cities are near Iwase?

42 Makabe 40 Chikusei 38 Shimodate 42 Mooka 39 Mashiko 53 Kasama 52 Tomobe 50 Kaminokawa 34 Yūki 34 Shimo-tsuma
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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 2026-05-29T00:10 UTC.