Stay updated with real-time air quality in Chatham, 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)
49
Good
Chatham, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.19 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
38.70 μg/m³
0
55
155
255
425
605+
21.67 ppb
0
55
71
86
201
201+
0.61 ppb
0
36
76
186
605
1005+
4.80 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Chatham, Illinois
Chatham, Illinois
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AQI 54
Moderate
10.79μg/m³
PM2.5
47.96μg/m³
PM10
27.98ppb
O3
0.54ppb
SO2
4.73ppb
NO2
0.21ppm
CO
AQI 52
Moderate
9.65μg/m³
PM2.5
42.45μg/m³
PM10
20.86ppb
O3
0.52ppb
SO2
4.84ppb
NO2
0.21ppm
CO
AQI 33
Good
6.01μg/m³
PM2.5
20.73μg/m³
PM10
21.22ppb
O3
0.54ppb
SO2
4.74ppb
NO2
0.19ppm
CO
AQI 54
Moderate
10.76μg/m³
PM2.5
35.31μg/m³
PM10
24.65ppb
O3
0.56ppb
SO2
4.63ppb
NO2
0.21ppm
CO
AQI 60
Moderate
13.67μg/m³
PM2.5
60.88μg/m³
PM10
28.92ppb
O3
0.42ppb
SO2
4.68ppb
NO2
0.23ppm
CO
AQI 33
Good
5.76μg/m³
PM2.5
24.66μg/m³
PM10
20.92ppb
O3
0.56ppb
SO2
4.97ppb
NO2
0.17ppm
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 Chatham, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Chatham, Illinois was at its worst at 01:00:00 on 2026-06-08.
In the last 24 hours, the best air quality in Chatham, Illinois was observed at 03:00:00 on 2026-06-08.
As of now, the AQI in Chatham, Illinois is 49, indicating Good conditions.
Chatham, Illinois air has the highest levels of PM2.5.
Poor air quality in Chatham, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Chatham, Illinois are currently 9.187 μg/m3.
The PM10 concentration in Chatham, Illinois is 38.703 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Chatham, Illinois is 0.204 ppm.
Currently, Chatham, Illinois has a sulfur dioxide (SO2) concentration of 0.613 ppb.
The current ozone (O3) level in Chatham, Illinois at the moment is 21.672 ppm.
Nitrogen dioxide (NO2) level in Chatham, Illinois at the moment is 4.801 ppb.
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