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
6.08 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.00 μg/m³
0
55
155
255
425
605+
33.86 ppb
0
55
71
86
201
201+
0.39 ppb
0
36
76
186
605
1005+
2.14 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Macomb, Illinois
Macomb, Illinois
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AQI 38
Good
6.73μg/m³
PM2.5
30.18μg/m³
PM10
12.46ppb
O3
0.23ppb
SO2
5.01ppb
NO2
0.18ppm
CO
AQI 49
Good
9.11μg/m³
PM2.5
24.45μg/m³
PM10
14.12ppb
O3
0.64ppb
SO2
2.69ppb
NO2
0.12ppm
CO
AQI 27
Good
5.34μg/m³
PM2.5
23.27μg/m³
PM10
19.19ppb
O3
0.24ppb
SO2
5.30ppb
NO2
0.19ppm
CO
AQI 22
Good
4.44μg/m³
PM2.5
19.76μg/m³
PM10
24.19ppb
O3
0.28ppb
SO2
6.43ppb
NO2
0.18ppm
CO
AQI 49
Good
9.37μg/m³
PM2.5
29.59μg/m³
PM10
18.09ppb
O3
0.69ppb
SO2
2.27ppb
NO2
0.13ppm
CO
AQI 44
Good
8.49μg/m³
PM2.5
28.17μg/m³
PM10
15.93ppb
O3
0.67ppb
SO2
3.04ppb
NO2
0.12ppm
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 01:00:00 on 2025-07-19.
The best air quality in Macomb, Illinois was recorded at 07:00:00 on 2025-07-20.
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 4.963 μg/m3.
The current PM10 levels in Macomb, Illinois are 21.036 μg/m3.
The current carbon monoxide (CO) level in Macomb, Illinois is 0.207 ppm.
The current sulfur dioxide (SO2) levels in Macomb, Illinois are 0.25 ppb.
The current ozone (O3) levels at Macomb, Illinois is 23.026 ppm.
The current nitrogen dioxide (NO2) levels at Macomb, Illinois is 5.873 ppb.
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