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)
44
Good
Marysville, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.11 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.89 μg/m³
0
55
155
255
425
605+
28.29 ppb
0
55
71
86
201
201+
1.07 ppb
0
36
76
186
605
1005+
5.78 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Marysville, Ohio
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AQI 33
Good
6.47μg/m³
PM2.5
24.14μg/m³
PM10
28.50ppb
O3
0.94ppb
SO2
2.58ppb
NO2
0.11ppm
CO
AQI 38
Good
7.35μg/m³
PM2.5
18.45μg/m³
PM10
24.19ppb
O3
0.92ppb
SO2
4.15ppb
NO2
0.13ppm
CO
AQI 33
Good
6.44μg/m³
PM2.5
24.18μg/m³
PM10
28.58ppb
O3
0.94ppb
SO2
2.56ppb
NO2
0.11ppm
CO
AQI 38
Good
6.78μg/m³
PM2.5
18.99μg/m³
PM10
30.51ppb
O3
0.95ppb
SO2
3.63ppb
NO2
0.13ppm
CO
AQI 38
Good
6.90μg/m³
PM2.5
20.00μg/m³
PM10
31.36ppb
O3
0.94ppb
SO2
3.29ppb
NO2
0.12ppm
CO
AQI 38
Good
6.87μg/m³
PM2.5
17.50μg/m³
PM10
31.07ppb
O3
0.95ppb
SO2
3.86ppb
NO2
0.13ppm
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 09:00:00 on 2026-06-07.
In the last 24 hours, the best air quality in Marysville, Ohio was observed at 05:00:00 on 2026-06-08.
As of now, the AQI in Marysville, Ohio is 44, indicating Good 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 8.108 μg/m3.
The PM10 concentration in Marysville, Ohio is 27.886 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Marysville, Ohio is 0.151 ppm.
Currently, Marysville, Ohio has a sulfur dioxide (SO2) concentration of 1.074 ppb.
The current ozone (O3) level in Marysville, Ohio at the moment is 28.285 ppm.
Nitrogen dioxide (NO2) level in Marysville, Ohio at the moment is 5.777 ppb.
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