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

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.12 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.77 μg/m³
0
55
155
255
425
605+
46.75 ppb
0
55
71
86
201
201+
0.26 ppb
0
36
76
186
605
1005+
3.42 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Fremont, Ohio
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AQI 45
Good
5.29μg/m³
PM2.5
16.49μg/m³
PM10
48.77ppb
O3
1.49ppb
SO2
3.91ppb
NO2
0.14ppm
CO
AQI 44
Good
5.93μg/m³
PM2.5
20.78μg/m³
PM10
47.10ppb
O3
2.36ppb
SO2
3.99ppb
NO2
0.14ppm
CO
AQI 37
Good
2.78μg/m³
PM2.5
11.36μg/m³
PM10
39.57ppb
O3
0.39ppb
SO2
0.59ppb
NO2
0.12ppm
CO
AQI 38
Good
4.53μg/m³
PM2.5
21.47μg/m³
PM10
40.95ppb
O3
0.59ppb
SO2
3.02ppb
NO2
0.14ppm
CO
AQI 44
Good
5.77μg/m³
PM2.5
16.70μg/m³
PM10
48.24ppb
O3
2.13ppb
SO2
4.12ppb
NO2
0.15ppm
CO
AQI 43
Good
6.16μg/m³
PM2.5
26.12μg/m³
PM10
46.09ppb
O3
1.20ppb
SO2
4.22ppb
NO2
0.15ppm
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 Fremont, Ohio is updated every hour for accuracy.
In the past 24 hours, the air quality in Fremont, Ohio was at its worst at 09:00:00 on 2026-07-23.
In the last 24 hours, the best air quality in Fremont, Ohio was observed at 03:00:00 on 2026-07-23.
As of now, the AQI in Fremont, Ohio is 44, indicating Good conditions.
Fremont, Ohio air has the highest levels of O3.
Poor air quality in Fremont, Ohio means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Fremont, Ohio are currently 6.12 μg/m3.
The PM10 concentration in Fremont, Ohio is 17.769 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Fremont, Ohio is 0.135 ppm.
Currently, Fremont, Ohio has a sulfur dioxide (SO2) concentration of 0.26 ppb.
The current ozone (O3) level in Fremont, Ohio at the moment is 46.751 ppm.
Nitrogen dioxide (NO2) level in Fremont, Ohio at the moment is 3.42 ppb.
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