Stay updated with real-time air quality in Macomb, 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)
33
Good
Macomb, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.95 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
26.94 μg/m³
0
55
155
255
425
605+
36.10 ppb
0
55
71
86
201
201+
0.30 ppb
0
36
76
186
605
1005+
0.64 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Macomb, Illinois
Macomb, Illinois
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AQI 38
Good
7.38μg/m³
PM2.5
32.72μg/m³
PM10
36.87ppb
O3
0.35ppb
SO2
0.77ppb
NO2
0.14ppm
CO
AQI 37
Good
4.46μg/m³
PM2.5
19.70μg/m³
PM10
39.53ppb
O3
0.41ppb
SO2
3.65ppb
NO2
0.17ppm
CO
AQI 38
Good
7.25μg/m³
PM2.5
32.00μg/m³
PM10
35.90ppb
O3
0.31ppb
SO2
0.76ppb
NO2
0.14ppm
CO
AQI 38
Good
6.74μg/m³
PM2.5
29.85μg/m³
PM10
35.08ppb
O3
0.38ppb
SO2
0.96ppb
NO2
0.15ppm
CO
AQI 41
Good
3.47μg/m³
PM2.5
14.34μg/m³
PM10
43.67ppb
O3
0.75ppb
SO2
2.29ppb
NO2
0.17ppm
CO
AQI 38
Good
6.16μg/m³
PM2.5
19.62μg/m³
PM10
41.16ppb
O3
0.40ppb
SO2
3.72ppb
NO2
0.17ppm
CO
Air quality measurements for Illinois, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Macomb, Illinois is updated on an hourly basis.
The worst air quality in Macomb, Illinois was recorded at 05:00:00 on 2026-06-13.
The best air quality in Macomb, Illinois was recorded at 05:00:00 on 2026-06-13.
The real-time air quality index in Macomb, Illinois is 33, currently categorized as Good.
The most common pollutant in Macomb, Illinois is O3.
If the air quality in Macomb, Illinois is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Macomb, Illinois at present are 5.948 μg/m3.
The current PM10 levels in Macomb, Illinois are 26.944 μg/m3.
The current carbon monoxide (CO) level in Macomb, Illinois is 0.137 ppm.
The current sulfur dioxide (SO2) levels in Macomb, Illinois are 0.298 ppb.
The current ozone (O3) levels at Macomb, Illinois is 36.104 ppm.
The current nitrogen dioxide (NO2) levels at Macomb, Illinois is 0.643 ppb.
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