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)
27
Good
Park Forest, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.84 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.37 μg/m³
0
55
155
255
425
605+
29.42 ppb
0
55
71
86
201
201+
0.27 ppb
0
36
76
186
605
1005+
3.88 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 27
Good
3.84μg/m³
PM2.5
15.37μg/m³
PM10
29.42ppb
O3
0.27ppb
SO2
3.88ppb
NO2
0.20ppm
CO
AQI 28
Good
3.87μg/m³
PM2.5
15.34μg/m³
PM10
30.13ppb
O3
0.26ppb
SO2
3.86ppb
NO2
0.20ppm
CO
AQI 31
Good
4.33μg/m³
PM2.5
18.94μg/m³
PM10
32.75ppb
O3
0.25ppb
SO2
3.66ppb
NO2
0.20ppm
CO
AQI 29
Good
3.62μg/m³
PM2.5
15.06μg/m³
PM10
31.08ppb
O3
0.26ppb
SO2
3.76ppb
NO2
0.20ppm
CO
AQI 31
Good
4.03μg/m³
PM2.5
17.70μg/m³
PM10
33.17ppb
O3
0.24ppb
SO2
3.82ppb
NO2
0.20ppm
CO
AQI 29
Good
3.90μg/m³
PM2.5
15.31μg/m³
PM10
30.84ppb
O3
0.26ppb
SO2
3.84ppb
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 07:00:00 on 2026-04-27.
In the last 24 hours, the best air quality in Park Forest, Illinois was observed at 02:00:00 on 2026-04-28.
As of now, the AQI in Park Forest, Illinois is 27, indicating Good conditions.
Park Forest, Illinois air has the highest levels of O3.
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 3.838 μg/m3.
The PM10 concentration in Park Forest, Illinois is 15.366 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 0.268 ppb.
The current ozone (O3) level in Park Forest, Illinois at the moment is 29.422 ppm.
Nitrogen dioxide (NO2) level in Park Forest, Illinois at the moment is 3.879 ppb.
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