Stay updated with real-time air quality in Marysville, 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)
35
Good
Marysville, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.58 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
24.01 μg/m³
0
55
155
255
425
605+
37.52 ppb
0
55
71
86
201
201+
1.40 ppb
0
36
76
186
605
1005+
12.56 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Marysville, Ohio
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AQI 52
Moderate
9.87μg/m³
PM2.5
40.32μg/m³
PM10
48.28ppb
O3
1.36ppb
SO2
16.25ppb
NO2
0.29ppm
CO
AQI 52
Moderate
9.94μg/m³
PM2.5
40.64μg/m³
PM10
41.29ppb
O3
1.12ppb
SO2
12.25ppb
NO2
0.27ppm
CO
AQI 52
Moderate
9.85μg/m³
PM2.5
40.20μg/m³
PM10
48.45ppb
O3
1.37ppb
SO2
16.31ppb
NO2
0.29ppm
CO
AQI 52
Moderate
9.99μg/m³
PM2.5
34.28μg/m³
PM10
49.38ppb
O3
1.37ppb
SO2
15.16ppb
NO2
0.28ppm
CO
AQI 52
Moderate
10.40μg/m³
PM2.5
35.56μg/m³
PM10
49.20ppb
O3
1.37ppb
SO2
15.69ppb
NO2
0.28ppm
CO
AQI 52
Moderate
10.07μg/m³
PM2.5
32.80μg/m³
PM10
49.15ppb
O3
1.37ppb
SO2
14.95ppb
NO2
0.28ppm
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 Marysville, Ohio is updated every hour for accuracy.
In the past 24 hours, the air quality in Marysville, Ohio was at its worst at 12:00:00 on 2026-04-24.
In the last 24 hours, the best air quality in Marysville, Ohio was observed at 08:00:00 on 2026-04-23.
As of now, the AQI in Marysville, Ohio is 54, indicating Moderate conditions.
Marysville, Ohio air has the highest levels of PM2.5.
Poor air quality in Marysville, Ohio means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Marysville, Ohio are currently 11.353 μg/m3.
The PM10 concentration in Marysville, Ohio is 34.534 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Marysville, Ohio is 0.326 ppm.
Currently, Marysville, Ohio has a sulfur dioxide (SO2) concentration of 1.363 ppb.
The current ozone (O3) level in Marysville, Ohio at the moment is 51.999 ppm.
Nitrogen dioxide (NO2) level in Marysville, Ohio at the moment is 10.902 ppb.
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