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
2.65 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.00 μg/m³
0
55
155
255
425
605+
41.12 ppb
0
55
71
86
201
201+
0.29 ppb
0
36
76
186
605
1005+
0.38 ppb
0
54
101
361
1250
2050+
0.12 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
3.23μg/m³
PM2.5
14.05μg/m³
PM10
41.38ppb
O3
0.32ppb
SO2
0.43ppb
NO2
0.13ppm
CO
AQI 41
Good
4.56μg/m³
PM2.5
17.93μg/m³
PM10
44.11ppb
O3
0.91ppb
SO2
2.29ppb
NO2
0.18ppm
CO
AQI 36
Good
3.66μg/m³
PM2.5
16.00μg/m³
PM10
38.90ppb
O3
0.29ppb
SO2
0.42ppb
NO2
0.13ppm
CO
AQI 44
Good
4.69μg/m³
PM2.5
19.75μg/m³
PM10
48.00ppb
O3
0.37ppb
SO2
0.64ppb
NO2
0.13ppm
CO
AQI 37
Good
3.89μg/m³
PM2.5
19.95μg/m³
PM10
39.93ppb
O3
1.08ppb
SO2
1.18ppb
NO2
0.22ppm
CO
AQI 43
Good
5.54μg/m³
PM2.5
24.84μg/m³
PM10
45.61ppb
O3
0.92ppb
SO2
2.63ppb
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 07:00:00 on 2026-07-23.
The best air quality in Macomb, Illinois was recorded at 12:00:00 on 2026-07-23.
The real-time air quality index in Macomb, Illinois is 38, 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 2.646 μg/m3.
The current PM10 levels in Macomb, Illinois are 11 μg/m3.
The current carbon monoxide (CO) level in Macomb, Illinois is 0.122 ppm.
The current sulfur dioxide (SO2) levels in Macomb, Illinois are 0.289 ppb.
The current ozone (O3) levels at Macomb, Illinois is 41.116 ppm.
The current nitrogen dioxide (NO2) levels at Macomb, Illinois is 0.384 ppb.
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