Stay updated with real-time air quality in Frankfort, Illinois 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)
107
Unhealthy for sensitive groups
Frankfort, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
37.73 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
145.93 μg/m³
0
55
155
255
425
605+
22.96 ppb
0
55
71
86
201
201+
1.11 ppb
0
36
76
186
605
1005+
12.19 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Frankfort, Illinois
Frankfort, Illinois
Scroll To Air Quality MapLoading...
AQI 105
Unhealthy for sensitive groups
36.67μg/m³
PM2.5
147.37μg/m³
PM10
14.11ppb
O3
1.31ppb
SO2
14.78ppb
NO2
0.37ppm
CO
AQI 97
Moderate
33.96μg/m³
PM2.5
131.95μg/m³
PM10
19.74ppb
O3
1.36ppb
SO2
14.76ppb
NO2
0.37ppm
CO
AQI 105
Unhealthy for sensitive groups
37.45μg/m³
PM2.5
131.47μg/m³
PM10
16.22ppb
O3
1.29ppb
SO2
14.72ppb
NO2
0.34ppm
CO
AQI 96
Moderate
33.31μg/m³
PM2.5
131.87μg/m³
PM10
11.04ppb
O3
1.80ppb
SO2
14.70ppb
NO2
0.38ppm
CO
AQI 96
Moderate
33.37μg/m³
PM2.5
131.88μg/m³
PM10
14.70ppb
O3
1.78ppb
SO2
14.79ppb
NO2
0.38ppm
CO
AQI 96
Moderate
32.97μg/m³
PM2.5
131.86μg/m³
PM10
10.65ppb
O3
1.77ppb
SO2
14.75ppb
NO2
0.38ppm
CO
The air quality data for Illinois, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Frankfort, Illinois are available every hour.
Frankfort, Illinois experienced its worst air quality at 09:00:00, 2025-07-14.
The best air quality in Frankfort, Illinois was observed at 06:00:00 on 2025-07-13.
The air quality in Frankfort, Illinois right now is Unhealthy for Sensitive Groups, with an AQI of 107.
In Frankfort, Illinois, PM2.5 is the most frequently found pollutant.
When air quality in Frankfort, Illinois is compromised, staying indoors and wearing a mask can reduce health risks.
Frankfort, Illinois currently has a PM2.5 concentration of 37.729 μg/m3.
Frankfort, Illinois currently has a PM10 concentration of 145.929 μg/m3.
The current carbon monoxide (CO) level in Frankfort, Illinois is 0.296 ppm.
The current sulfur dioxide (SO2) concentration in Frankfort, Illinois is 1.112 ppb.
Frankfort, Illinois currently has an ozone (O3) concentration of 22.965 ppm.
The current level of nitrogen dioxide (NO2) in Frankfort, Illinois is 12.189 ppb.
All Rights Reserved © Ambee Inc. 2025