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)
22
Good
Marysville, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.46 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.43 μg/m³
0
55
155
255
425
605+
22.81 ppb
0
55
71
86
201
201+
0.93 ppb
0
36
76
186
605
1005+
3.93 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Marysville, Ohio
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AQI 22
Good
4.38μg/m³
PM2.5
16.55μg/m³
PM10
23.01ppb
O3
0.98ppb
SO2
2.24ppb
NO2
0.20ppm
CO
AQI 22
Good
4.31μg/m³
PM2.5
14.50μg/m³
PM10
22.23ppb
O3
0.98ppb
SO2
3.65ppb
NO2
0.20ppm
CO
AQI 22
Good
4.37μg/m³
PM2.5
16.50μg/m³
PM10
23.01ppb
O3
0.98ppb
SO2
2.21ppb
NO2
0.20ppm
CO
AQI 22
Good
4.31μg/m³
PM2.5
11.43μg/m³
PM10
22.60ppb
O3
0.99ppb
SO2
2.52ppb
NO2
0.20ppm
CO
AQI 27
Good
4.50μg/m³
PM2.5
12.62μg/m³
PM10
22.99ppb
O3
0.98ppb
SO2
2.42ppb
NO2
0.20ppm
CO
AQI 22
Good
4.34μg/m³
PM2.5
10.16μg/m³
PM10
22.58ppb
O3
0.99ppb
SO2
2.60ppb
NO2
0.20ppm
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 07:00:00 on 2026-03-07.
In the last 24 hours, the best air quality in Marysville, Ohio was observed at 12:00:00 on 2026-03-08.
As of now, the AQI in Marysville, Ohio is 22, 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 4.457 μg/m3.
The PM10 concentration in Marysville, Ohio is 18.426 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Marysville, Ohio is 0.202 ppm.
Currently, Marysville, Ohio has a sulfur dioxide (SO2) concentration of 0.929 ppb.
The current ozone (O3) level in Marysville, Ohio at the moment is 22.812 ppm.
Nitrogen dioxide (NO2) level in Marysville, Ohio at the moment is 3.927 ppb.
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