Stay updated with real-time air quality in Monroe, Ohio featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
75
Moderate
Monroe, Ohio
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
22.03 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
97.26 μg/m³
0
55
155
255
425
605+
19.08 ppb
0
55
71
86
201
201+
0.61 ppb
0
36
76
186
605
1005+
6.95 ppb
0
54
101
361
1250
2050+
0.31 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Monroe, Ohio
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AQI 33
Good
5.71μg/m³
PM2.5
17.03μg/m³
PM10
29.99ppb
O3
1.52ppb
SO2
5.36ppb
NO2
0.19ppm
CO
AQI 28
Good
5.34μg/m³
PM2.5
20.46μg/m³
PM10
30.07ppb
O3
1.47ppb
SO2
5.51ppb
NO2
0.19ppm
CO
AQI 30
Good
3.63μg/m³
PM2.5
14.68μg/m³
PM10
32.46ppb
O3
1.77ppb
SO2
5.39ppb
NO2
0.18ppm
CO
AQI 28
Good
5.47μg/m³
PM2.5
19.31μg/m³
PM10
30.02ppb
O3
1.53ppb
SO2
5.45ppb
NO2
0.19ppm
CO
AQI 31
Good
5.33μg/m³
PM2.5
18.09μg/m³
PM10
32.80ppb
O3
1.58ppb
SO2
5.45ppb
NO2
0.16ppm
CO
AQI 33
Good
5.65μg/m³
PM2.5
27.75μg/m³
PM10
34.01ppb
O3
1.55ppb
SO2
5.19ppb
NO2
0.19ppm
CO
Air quality and pollutant data for Ohio, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Monroe, Ohio is updated every hour for accuracy.
In the past 24 hours, the air quality in Monroe, Ohio was at its worst at 03:00:00 on 2025-07-18.
In the last 24 hours, the best air quality in Monroe, Ohio was observed at 12:00:00 on 2025-07-18.
As of now, the AQI in Monroe, Ohio is 26, indicating Good conditions.
Monroe, Ohio air has the highest levels of O3.
Poor air quality in Monroe, Ohio means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Monroe, Ohio are currently 4.332 μg/m3.
The PM10 concentration in Monroe, Ohio is 19.514 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Monroe, Ohio is 0.23 ppm.
Currently, Monroe, Ohio has a sulfur dioxide (SO2) concentration of 1.424 ppb.
The current ozone (O3) level in Monroe, Ohio at the moment is 28.496 ppm.
Nitrogen dioxide (NO2) level in Monroe, Ohio at the moment is 8.383 ppb.
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