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)
34
Good
Fremont, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.69 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.18 μg/m³
0
55
155
255
425
605+
37.45 ppb
0
55
71
86
201
201+
0.60 ppb
0
36
76
186
605
1005+
6.51 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Fremont, Ohio
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AQI 34
Good
4.82μg/m³
PM2.5
21.00μg/m³
PM10
36.74ppb
O3
0.64ppb
SO2
5.92ppb
NO2
0.18ppm
CO
AQI 35
Good
5.11μg/m³
PM2.5
21.95μg/m³
PM10
38.10ppb
O3
0.67ppb
SO2
6.01ppb
NO2
0.19ppm
CO
AQI 32
Good
5.17μg/m³
PM2.5
22.27μg/m³
PM10
34.78ppb
O3
0.68ppb
SO2
7.50ppb
NO2
0.23ppm
CO
AQI 31
Good
3.79μg/m³
PM2.5
16.74μg/m³
PM10
33.70ppb
O3
0.68ppb
SO2
7.37ppb
NO2
0.20ppm
CO
AQI 34
Good
5.95μg/m³
PM2.5
26.75μg/m³
PM10
36.79ppb
O3
0.71ppb
SO2
7.42ppb
NO2
0.21ppm
CO
AQI 54
Moderate
11.11μg/m³
PM2.5
49.52μg/m³
PM10
32.03ppb
O3
0.78ppb
SO2
10.35ppb
NO2
0.24ppm
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 01:00:00 on 2026-04-23.
In the last 24 hours, the best air quality in Fremont, Ohio was observed at 03:00:00 on 2026-04-24.
As of now, the AQI in Fremont, Ohio is 34, 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 4.691 μg/m3.
The PM10 concentration in Fremont, Ohio is 20.183 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Fremont, Ohio is 0.209 ppm.
Currently, Fremont, Ohio has a sulfur dioxide (SO2) concentration of 0.605 ppb.
The current ozone (O3) level in Fremont, Ohio at the moment is 37.448 ppm.
Nitrogen dioxide (NO2) level in Fremont, Ohio at the moment is 6.514 ppb.
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