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)
52
Moderate
Fremont, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.16 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
40.84 μg/m³
0
55
155
255
425
605+
18.82 ppb
0
55
71
86
201
201+
0.68 ppb
0
36
76
186
605
1005+
5.87 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Fremont, Ohio
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AQI 52
Moderate
10.04μg/m³
PM2.5
43.04μg/m³
PM10
22.21ppb
O3
0.59ppb
SO2
6.87ppb
NO2
0.22ppm
CO
AQI 49
Good
9.23μg/m³
PM2.5
43.25μg/m³
PM10
22.27ppb
O3
0.57ppb
SO2
6.71ppb
NO2
0.22ppm
CO
AQI 52
Moderate
10.12μg/m³
PM2.5
45.23μg/m³
PM10
38.34ppb
O3
0.39ppb
SO2
5.20ppb
NO2
0.20ppm
CO
AQI 52
Moderate
10.27μg/m³
PM2.5
44.23μg/m³
PM10
23.16ppb
O3
0.71ppb
SO2
6.96ppb
NO2
0.21ppm
CO
AQI 54
Moderate
10.53μg/m³
PM2.5
41.76μg/m³
PM10
28.45ppb
O3
0.43ppb
SO2
6.65ppb
NO2
0.22ppm
CO
AQI 49
Good
8.78μg/m³
PM2.5
37.31μg/m³
PM10
24.75ppb
O3
0.45ppb
SO2
4.29ppb
NO2
0.25ppm
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 03:00:00 on 2026-08-13.
In the last 24 hours, the best air quality in Fremont, Ohio was observed at 11:00:00 on 2026-08-12.
As of now, the AQI in Fremont, Ohio is 54, indicating Moderate conditions.
Fremont, Ohio air has the highest levels of PM2.5.
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 11.034 μg/m3.
The PM10 concentration in Fremont, Ohio is 36.652 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Fremont, Ohio is 0.224 ppm.
Currently, Fremont, Ohio has a sulfur dioxide (SO2) concentration of 0.589 ppb.
The current ozone (O3) level in Fremont, Ohio at the moment is 16.551 ppm.
Nitrogen dioxide (NO2) level in Fremont, Ohio at the moment is 6.317 ppb.
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