Air Quality in Mason, United States

Windy
14.2°C · 66.5% humidity
14.2°
Feels 14.2°
39
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations

Nearby Monitoring Stations

AQI Forecast
27 5pm
27
34
39 8pm
29
28
27 11pm
26
26
26 2am
25
25
25 5am
25
25
25 8am
25
25
25 11am
25
25
25 2pm
25
25
AD 728×90

Air Quality Index Trend

47h · 1 stn

Mason's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Mason is 1.9× the WHO annual guideline of 5 µg/m³.

66.5%
Humidity
76.6 km/h
Wind N
1021.7 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
39
9.45 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Mason?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.59.45 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (3 stations within 25 km)
9.45
Median
9.37
Average
7.9
Low
10.1
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +1.4

What is the 7-day forecast for Mason?

05-29
29.1° 7.8°
05-30
23.7° 17.7°
0.81 mm
05-31
28.9° 9.2°
06-01
28.8° 14.7°
0.69 mm
06-02
23.0° 11.2°
06-03
25.7° 21.7°
15.19 mm
06-04
25.0° 19.0°
Both models agree Avg diff: 4.4°C

Where are air quality stations near Mason?

13
Sycamore, Ohio, USA
10.3 km PM2.5: 3.1 µg/m³
47
Sycamore, Ohio, USA
10.3 km PM2.5: 11.3 µg/m³
35
Lebanon, Ohio, USA
12.0 km PM2.5: 8.4 µg/m³
42
Lebanon, Ohio, USA
12.0 km PM2.5: 10.1 µg/m³

What cities are near Mason?

38 Lebanon 38 Forest Park 38 Middletown 37 Fairfield 39 Hamilton 38 Springboro 36 Norwood 35 White Oak 34 Cincinnati 30 Miamisburg
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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 2026-05-29T00:11 UTC.