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)
38
Good
Macomb, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.01 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.99 μg/m³
0
55
155
255
425
605+
21.78 ppb
0
55
71
86
201
201+
0.70 ppb
0
36
76
186
605
1005+
5.92 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Macomb, Illinois
Macomb, Illinois
Scroll To Air Quality MapLoading...
AQI 26
Good
3.72μg/m³
PM2.5
16.18μg/m³
PM10
27.85ppb
O3
0.62ppb
SO2
5.52ppb
NO2
0.17ppm
CO
AQI 33
Good
5.79μg/m³
PM2.5
30.27μg/m³
PM10
24.37ppb
O3
0.26ppb
SO2
20.70ppb
NO2
0.44ppm
CO
AQI 27
Good
5.03μg/m³
PM2.5
21.79μg/m³
PM10
26.56ppb
O3
0.67ppb
SO2
4.77ppb
NO2
0.17ppm
CO
AQI 22
Good
3.85μg/m³
PM2.5
16.90μg/m³
PM10
22.24ppb
O3
0.48ppb
SO2
9.52ppb
NO2
0.21ppm
CO
AQI 38
Good
7.18μg/m³
PM2.5
29.96μg/m³
PM10
36.85ppb
O3
0.78ppb
SO2
4.49ppb
NO2
0.57ppm
CO
AQI 33
Good
6.06μg/m³
PM2.5
27.54μg/m³
PM10
25.33ppb
O3
0.28ppb
SO2
20.81ppb
NO2
0.43ppm
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 09:00:00 on 2026-10-08.
The best air quality in Macomb, Illinois was recorded at 12:00:00 on 2026-10-08.
The real-time air quality index in Macomb, Illinois is 27, currently categorized as Good.
The most common pollutant in Macomb, Illinois is PM2.5.
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 5.021 μg/m3.
The current PM10 levels in Macomb, Illinois are 21.967 μg/m3.
The current carbon monoxide (CO) level in Macomb, Illinois is 0.177 ppm.
The current sulfur dioxide (SO2) levels in Macomb, Illinois are 0.811 ppb.
The current ozone (O3) levels at Macomb, Illinois is 24.708 ppm.
The current nitrogen dioxide (NO2) levels at Macomb, Illinois is 5.591 ppb.
All Rights Reserved © Ambee Inc. 2025