Stay updated with real-time air quality in Park Forest, 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)
60
Moderate
Park Forest, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
13.61 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
46.69 μg/m³
0
55
155
255
425
605+
29.34 ppb
0
55
71
86
201
201+
2.45 ppb
0
36
76
186
605
1005+
6.08 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Park Forest, Illinois
Park Forest, Illinois
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AQI 66
Moderate
17.07μg/m³
PM2.5
81.67μg/m³
PM10
25.95ppb
O3
3.86ppb
SO2
9.58ppb
NO2
0.20ppm
CO
AQI 64
Moderate
16.47μg/m³
PM2.5
67.00μg/m³
PM10
27.61ppb
O3
3.93ppb
SO2
13.94ppb
NO2
0.20ppm
CO
AQI 69
Moderate
18.82μg/m³
PM2.5
79.91μg/m³
PM10
27.19ppb
O3
4.65ppb
SO2
22.94ppb
NO2
0.21ppm
CO
AQI 66
Moderate
17.07μg/m³
PM2.5
81.59μg/m³
PM10
27.81ppb
O3
4.32ppb
SO2
19.80ppb
NO2
0.20ppm
CO
AQI 69
Moderate
19.07μg/m³
PM2.5
84.28μg/m³
PM10
26.29ppb
O3
3.99ppb
SO2
21.91ppb
NO2
0.21ppm
CO
AQI 62
Moderate
14.66μg/m³
PM2.5
52.08μg/m³
PM10
26.77ppb
O3
4.02ppb
SO2
16.83ppb
NO2
0.20ppm
CO
Air quality and pollutant data for Illinois, 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 Park Forest, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Park Forest, Illinois was at its worst at 03:00:00 on 2026-10-22.
In the last 24 hours, the best air quality in Park Forest, Illinois was observed at 03:00:00 on 2026-10-22.
As of now, the AQI in Park Forest, Illinois is 66, indicating Moderate conditions.
Park Forest, Illinois air has the highest levels of PM2.5.
Poor air quality in Park Forest, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Park Forest, Illinois are currently 17.068 μg/m3.
The PM10 concentration in Park Forest, Illinois is 81.668 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Park Forest, Illinois is 0.201 ppm.
Currently, Park Forest, Illinois has a sulfur dioxide (SO2) concentration of 3.862 ppb.
The current ozone (O3) level in Park Forest, Illinois at the moment is 25.954 ppm.
Nitrogen dioxide (NO2) level in Park Forest, Illinois at the moment is 9.576 ppb.
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