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)
39
Good
Marysville, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.67 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.69 μg/m³
0
55
155
255
425
605+
41.83 ppb
0
55
71
86
201
201+
1.29 ppb
0
36
76
186
605
1005+
8.67 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 35
Good
4.53μg/m³
PM2.5
18.85μg/m³
PM10
38.42ppb
O3
3.65ppb
SO2
11.53ppb
NO2
0.20ppm
CO
AQI 36
Good
4.52μg/m³
PM2.5
17.91μg/m³
PM10
38.77ppb
O3
3.53ppb
SO2
9.62ppb
NO2
0.18ppm
CO
AQI 35
Good
4.53μg/m³
PM2.5
18.98μg/m³
PM10
38.43ppb
O3
3.65ppb
SO2
11.55ppb
NO2
0.20ppm
CO
AQI 35
Good
4.63μg/m³
PM2.5
19.14μg/m³
PM10
37.76ppb
O3
3.73ppb
SO2
10.79ppb
NO2
0.19ppm
CO
AQI 34
Good
4.71μg/m³
PM2.5
17.43μg/m³
PM10
37.36ppb
O3
3.71ppb
SO2
11.03ppb
NO2
0.19ppm
CO
AQI 35
Good
4.67μg/m³
PM2.5
19.70μg/m³
PM10
37.62ppb
O3
3.74ppb
SO2
10.61ppb
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 Marysville, Ohio is updated every hour for accuracy.
In the past 24 hours, the air quality in Marysville, Ohio was at its worst at 05:00:00 on 2026-03-09.
In the last 24 hours, the best air quality in Marysville, Ohio was observed at 12:00:00 on 2026-03-09.
As of now, the AQI in Marysville, Ohio is 39, indicating Good conditions.
Marysville, Ohio air has the highest levels of O3.
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 4.67 μg/m3.
The PM10 concentration in Marysville, Ohio is 18.691 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Marysville, Ohio is 0.235 ppm.
Currently, Marysville, Ohio has a sulfur dioxide (SO2) concentration of 1.294 ppb.
The current ozone (O3) level in Marysville, Ohio at the moment is 41.825 ppm.
Nitrogen dioxide (NO2) level in Marysville, Ohio at the moment is 8.671 ppb.
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