Stay updated with real-time air quality in Forest Park, 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)
44
Good
Forest Park, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
8.30 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
37.24 μg/m³
0
55
155
255
425
605+
12.91 ppb
0
55
71
86
201
201+
0.49 ppb
0
36
76
186
605
1005+
10.20 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Forest Park, Illinois
Forest Park, Illinois
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AQI 33
Good
5.82μg/m³
PM2.5
24.01μg/m³
PM10
20.25ppb
O3
0.51ppb
SO2
10.59ppb
NO2
0.21ppm
CO
AQI 33
Good
6.10μg/m³
PM2.5
26.92μg/m³
PM10
19.88ppb
O3
0.51ppb
SO2
10.37ppb
NO2
0.21ppm
CO
AQI 33
Good
5.67μg/m³
PM2.5
24.91μg/m³
PM10
20.57ppb
O3
0.52ppb
SO2
10.74ppb
NO2
0.21ppm
CO
AQI 33
Good
5.84μg/m³
PM2.5
25.68μg/m³
PM10
21.90ppb
O3
0.52ppb
SO2
10.54ppb
NO2
0.21ppm
CO
AQI 33
Good
6.10μg/m³
PM2.5
25.36μg/m³
PM10
18.23ppb
O3
0.51ppb
SO2
10.32ppb
NO2
0.21ppm
CO
AQI 33
Good
6.05μg/m³
PM2.5
23.92μg/m³
PM10
20.41ppb
O3
0.51ppb
SO2
10.53ppb
NO2
0.21ppm
CO
Air quality data and pollutant measurements for Illinois, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Forest Park, Illinois is updated every hour.
The worst air quality in Forest Park, Illinois in the last 24 hours was observed at 06:00:00 on 2025-07-24.
In the last 24 hrs, the best air quality in Forest Park, Illinois was observed at 04:00:00 on 2025-07-25.
The current air quality in Forest Park, Illinois is 33, categorized as Good based on real-time data.
The most common pollutant in Forest Park, Illinois is PM2.5.
If the air quality in Forest Park, Illinois is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Forest Park, Illinois is 5.815 μg/m3.
The current PM10 concentration at Forest Park, Illinois is 25.573 μg/m3.
The current carbon monoxide (CO) concentration at Forest Park, Illinois is 0.159 ppm.
The current sulfur dioxide (SO2) concentration at Forest Park, Illinois is 0.538 ppb.
The current ozone (O3) concentration at Forest Park, Illinois is 18.698 ppm.
The current nitrogen dioxide (NO2) concentration at Forest Park, Illinois is 9.998 ppb.
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