Air Quality in Yasu, Japan

Drizzle
24.2°C · 96.4% humidity
24.2°
Feels 24.2°
79
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
5 stations

Nearby Monitoring Stations

AQI Forecast
54 7am
34
34
79 10am
64
54
46 1pm
41
44
41 4pm
39
38
37 7pm
36
35
35 10pm
35
34
54 1am
54
54
54 4am
54
54
AD 728×90

Air Quality Index Trend

47h · 16 stn

Yasu'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 Yasu is 1.7× the WHO 24-hour guideline of 15 µg/m³.

96.4%
Humidity
19.5 km/h
Wind SE
999.6 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
79
25.65 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Yasu?

Temperature & Precipitation

PM2.5 Trend

47h · 16 stations
PM2.525.65 µg/m³ ×1.7 WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX19.9
Extreme
AD 300×250
Station readings (5 stations within 25 km)
25.65
Median
23.72
Average
18.8
Low
28.3
High
PM2.5 µg/m³ · Model: 10.0 · Bias: -15.6

What is the 7-day forecast for Yasu?

07-22
27.1° 23.2°
1.31 mm
07-23
26.8° 20.8°
1.25 mm
07-24
27.6° 23.6°
0.62 mm
07-25
31.3° 22.7°
2.94 mm
07-26
27.8° 23.5°
0.19 mm
07-27
30.0° 24.2°
0.06 mm
07-28
26.8° 24.4°
0.69 mm
Both models agree Avg diff: 3.0°C

Where are air quality stations near Yasu?

87
Moriyama, Moriyama, Shiga, Japan (守山守山市)
5.1 km PM2.5: 29.2 µg/m³
21
Honkatata, Otsu, Shiga, Japan (堅田大津市)
9.1 km PM2.5: 5.0 µg/m³
19
Honkatata, Otsu, Shiga, Japan (堅田大津市)
9.1 km PM2.5: 4.6 µg/m³
72
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
11.1 km PM2.5: 22.1 µg/m³
17
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
11.1 km PM2.5: 4.1 µg/m³
25
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
11.1 km PM2.5: 6.0 µg/m³
65
Kusatsucho, Kusatsu, Shiga, Japan (草津草津市)
11.2 km PM2.5: 18.8 µg/m³
21
Kasugacho, Higashiomi, Shiga, Japan (東近江東近江市)
17.0 km PM2.5: 5.0 µg/m³
63
Kasugacho, Higashiomi, Shiga, Japan (東近江東近江市)
17.0 km PM2.5: 17.8 µg/m³
27
Otowadai, Otsu, Shiga, Japan (逢坂大津市)
17.7 km PM2.5: 6.5 µg/m³

What cities are near Yasu?

76 Moriyama 85 Ōmihachiman 72 Rittō 70 Kusatsu 81 Kitahama 75 Konan 42 Youkaichi 65 Ōtsu 42 Echigawa 80 Kōka
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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 2026-07-22T01:11 UTC.