Stay updated with real-time air quality in Lincoln, 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)
41
Good
Lincoln, 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+
19.21 μg/m³
0
55
155
255
425
605+
43.76 ppb
0
55
71
86
201
201+
0.86 ppb
0
36
76
186
605
1005+
2.87 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Lincoln, Illinois
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AQI 37
Good
4.11μg/m³
PM2.5
18.04μg/m³
PM10
40.01ppb
O3
0.85ppb
SO2
3.00ppb
NO2
0.18ppm
CO
AQI 40
Good
3.92μg/m³
PM2.5
17.06μg/m³
PM10
43.02ppb
O3
0.87ppb
SO2
2.81ppb
NO2
0.17ppm
CO
AQI 35
Good
4.79μg/m³
PM2.5
20.96μg/m³
PM10
38.05ppb
O3
0.76ppb
SO2
3.00ppb
NO2
0.19ppm
CO
AQI 40
Good
3.90μg/m³
PM2.5
17.00μg/m³
PM10
43.00ppb
O3
0.87ppb
SO2
2.81ppb
NO2
0.17ppm
CO
AQI 43
Good
4.72μg/m³
PM2.5
19.98μg/m³
PM10
45.55ppb
O3
0.83ppb
SO2
2.72ppb
NO2
0.14ppm
CO
AQI 40
Good
4.64μg/m³
PM2.5
19.64μg/m³
PM10
42.96ppb
O3
0.82ppb
SO2
2.73ppb
NO2
0.14ppm
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 Lincoln, Illinois is updated every hour.
The worst air quality in Lincoln, Illinois in the last 24 hours was observed at 10:00:00 on 2026-07-23.
In the last 24 hrs, the best air quality in Lincoln, Illinois was observed at 03:00:00 on 2026-07-23.
The current air quality in Lincoln, Illinois is 41, categorized as Good based on real-time data.
The most common pollutant in Lincoln, Illinois is O3.
If the air quality in Lincoln, Illinois is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Lincoln, Illinois is 4.396 μg/m3.
The current PM10 concentration at Lincoln, Illinois is 19.207 μg/m3.
The current carbon monoxide (CO) concentration at Lincoln, Illinois is 0.178 ppm.
The current sulfur dioxide (SO2) concentration at Lincoln, Illinois is 0.861 ppb.
The current ozone (O3) concentration at Lincoln, Illinois is 43.764 ppm.
The current nitrogen dioxide (NO2) concentration at Lincoln, Illinois is 2.871 ppb.
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