Stay updated with real-time air quality in Pontiac, 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)
42
Good
Pontiac, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.40 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.70 μg/m³
0
55
155
255
425
605+
44.94 ppb
0
55
71
86
201
201+
0.67 ppb
0
36
76
186
605
1005+
3.39 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Pontiac, Illinois
Pontiac, Illinois
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AQI 39
Good
0.59μg/m³
PM2.5
2.22μg/m³
PM10
42.34ppb
O3
0.57ppb
SO2
1.00ppb
NO2
0.11ppm
CO
AQI 39
Good
3.90μg/m³
PM2.5
17.00μg/m³
PM10
42.00ppb
O3
0.49ppb
SO2
2.84ppb
NO2
0.20ppm
CO
AQI 39
Good
3.91μg/m³
PM2.5
17.05μg/m³
PM10
42.05ppb
O3
0.49ppb
SO2
2.85ppb
NO2
0.20ppm
CO
AQI 43
Good
1.83μg/m³
PM2.5
7.54μg/m³
PM10
45.82ppb
O3
0.62ppb
SO2
1.07ppb
NO2
0.11ppm
CO
AQI 46
Good
7.18μg/m³
PM2.5
21.21μg/m³
PM10
49.81ppb
O3
0.71ppb
SO2
3.26ppb
NO2
0.15ppm
CO
AQI 40
Good
4.55μg/m³
PM2.5
18.95μg/m³
PM10
42.98ppb
O3
0.53ppb
SO2
2.75ppb
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 Pontiac, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Pontiac, Illinois was at its worst at 11:00:00 on 2026-07-23.
In the last 24 hours, the best air quality in Pontiac, Illinois was observed at 03:00:00 on 2026-07-23.
As of now, the AQI in Pontiac, Illinois is 42, indicating Good conditions.
Pontiac, Illinois air has the highest levels of O3.
Poor air quality in Pontiac, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Pontiac, Illinois are currently 4.402 μg/m3.
The PM10 concentration in Pontiac, Illinois is 21.698 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Pontiac, Illinois is 0.159 ppm.
Currently, Pontiac, Illinois has a sulfur dioxide (SO2) concentration of 0.669 ppb.
The current ozone (O3) level in Pontiac, Illinois at the moment is 44.935 ppm.
Nitrogen dioxide (NO2) level in Pontiac, Illinois at the moment is 3.394 ppb.
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