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)
44
Good
Chatham, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.70 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
33.21 μg/m³
0
55
155
255
425
605+
29.56 ppb
0
55
71
86
201
201+
0.61 ppb
0
36
76
186
605
1005+
17.35 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Chatham, Illinois
Chatham, Illinois
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AQI 34
Good
3.74μg/m³
PM2.5
17.05μg/m³
PM10
37.01ppb
O3
0.66ppb
SO2
3.63ppb
NO2
0.16ppm
CO
AQI 42
Good
4.88μg/m³
PM2.5
23.87μg/m³
PM10
44.83ppb
O3
0.58ppb
SO2
3.57ppb
NO2
0.16ppm
CO
AQI 40
Good
3.48μg/m³
PM2.5
16.97μg/m³
PM10
42.74ppb
O3
0.84ppb
SO2
3.28ppb
NO2
0.17ppm
CO
AQI 41
Good
3.75μg/m³
PM2.5
26.30μg/m³
PM10
43.66ppb
O3
0.54ppb
SO2
3.60ppb
NO2
0.15ppm
CO
AQI 36
Good
4.32μg/m³
PM2.5
19.00μg/m³
PM10
39.25ppb
O3
0.72ppb
SO2
0.82ppb
NO2
0.14ppm
CO
AQI 41
Good
3.64μg/m³
PM2.5
16.19μg/m³
PM10
44.45ppb
O3
0.77ppb
SO2
3.38ppb
NO2
0.19ppm
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 10:00:00 on 2026-10-05.
In the last 24 hours, the best air quality in Chatham, Illinois was observed at 01:00:00 on 2026-10-05.
As of now, the AQI in Chatham, Illinois is 41, indicating Good conditions.
Chatham, Illinois air has the highest levels of O3.
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 4.208 μg/m3.
The PM10 concentration in Chatham, Illinois is 17.25 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Chatham, Illinois is 0.178 ppm.
Currently, Chatham, Illinois has a sulfur dioxide (SO2) concentration of 0.702 ppb.
The current ozone (O3) level in Chatham, Illinois at the moment is 44.077 ppm.
Nitrogen dioxide (NO2) level in Chatham, Illinois at the moment is 3.428 ppb.
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