Air Quality in Moriyama, Japan

Drizzle
24.2°C · 96.4% humidity
24.2°
Feels 24.2°
67
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
16 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
35 5am
35
35
67 8am
52
35
27 11am
22
18
15 2pm
20
19
18 5pm
17
16
16 8pm
16
15
15 11pm
15
35
35 2am
35
35
Station readings
8
AD 728×90

Air Quality Index Trend

47h · 20 stn

Moriyama'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 Moriyama is 1.3× the WHO 24-hour guideline of 15 µg/m³.

96.4%
Humidity
19.5 km/h
Wind SE
999.6 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
67
19.67 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Moriyama?

Temperature & Precipitation

PM2.5 Trend

47h · 20 stations
PM2.519.67 µg/m³ ×1.3 WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (16 stations within 25 km)
19.67
Median
18.93
Average
8.4
Low
33.0
High
PM2.5 µg/m³ · Model: 13.5 · Bias: -6.2
Both models agree Avg diff: 3.0°C

Where are air quality stations near Moriyama?

46
Moriyama, Moriyama, Shiga, Japan (守山守山市)
0.4 km PM2.5: 11.0 µg/m³
68
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
6.3 km PM2.5: 20.2 µg/m³
63
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
6.3 km PM2.5: 17.8 µg/m³
61
Kusatsu, Kusatsu, Shiga, Japan (自排草津草津市)
6.3 km PM2.5: 16.9 µg/m³
65
Kusatsucho, Kusatsu, Shiga, Japan (草津草津市)
6.3 km PM2.5: 18.8 µg/m³
31
Honkatata, Otsu, Shiga, Japan (堅田大津市)
7.9 km PM2.5: 7.4 µg/m³
30
Honkatata, Otsu, Shiga, Japan (堅田大津市)
7.9 km PM2.5: 7.2 µg/m³
38
Otowadai, Otsu, Shiga, Japan (逢坂大津市)
13.0 km PM2.5: 9.1 µg/m³
40
Ishiyamadera, Otsu, Shiga, Japan (石山大津市)
14.1 km PM2.5: 9.6 µg/m³
25
Ishiyamadera, Otsu, Shiga, Japan (石山大津市)
14.1 km PM2.5: 6.0 µg/m³

What cities are near Moriyama?

60 Rittō 64 Yasu 42 Kusatsu 63 Ōmihachiman 64 Kitahama 63 Konan 60 Ōtsu 68 Kōka 68 Minakuchichō-matoba 64 Youkaichi
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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 2026-07-21T23:15 UTC.