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)
60
Moderate
Marysville, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
14.23 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
35.24 μg/m³
0
55
155
255
425
605+
33.61 ppb
0
55
71
86
201
201+
2.55 ppb
0
36
76
186
605
1005+
5.20 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 44
Good
8.44μg/m³
PM2.5
32.61μg/m³
PM10
21.26ppb
O3
1.45ppb
SO2
6.12ppb
NO2
0.11ppm
CO
AQI 52
Moderate
10.31μg/m³
PM2.5
41.67μg/m³
PM10
14.78ppb
O3
1.38ppb
SO2
6.61ppb
NO2
0.14ppm
CO
AQI 44
Good
8.37μg/m³
PM2.5
32.34μg/m³
PM10
21.38ppb
O3
1.45ppb
SO2
6.11ppb
NO2
0.11ppm
CO
AQI 49
Good
8.62μg/m³
PM2.5
27.04μg/m³
PM10
20.54ppb
O3
1.45ppb
SO2
6.30ppb
NO2
0.12ppm
CO
AQI 49
Good
9.21μg/m³
PM2.5
27.17μg/m³
PM10
20.93ppb
O3
1.44ppb
SO2
6.24ppb
NO2
0.12ppm
CO
AQI 49
Good
8.70μg/m³
PM2.5
25.33μg/m³
PM10
20.23ppb
O3
1.45ppb
SO2
6.34ppb
NO2
0.12ppm
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 02:00:00 on 2026-08-08.
In the last 24 hours, the best air quality in Marysville, Ohio was observed at 08:00:00 on 2026-08-08.
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 11.059 μg/m3.
The PM10 concentration in Marysville, Ohio is 33.072 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Marysville, Ohio is 0.161 ppm.
Currently, Marysville, Ohio has a sulfur dioxide (SO2) concentration of 1.527 ppb.
The current ozone (O3) level in Marysville, Ohio at the moment is 22.612 ppm.
Nitrogen dioxide (NO2) level in Marysville, Ohio at the moment is 6.771 ppb.
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