Stay updated with real-time air quality in Galesburg, 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)
54
Moderate
Galesburg, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.53 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
46.52 μg/m³
0
55
155
255
425
605+
14.44 ppb
0
55
71
86
201
201+
0.91 ppb
0
36
76
186
605
1005+
5.34 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Galesburg, Illinois
Galesburg, Illinois
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AQI 33
Good
6.01μg/m³
PM2.5
24.92μg/m³
PM10
21.89ppb
O3
0.76ppb
SO2
5.28ppb
NO2
0.17ppm
CO
AQI 27
Good
5.45μg/m³
PM2.5
18.70μg/m³
PM10
23.73ppb
O3
0.43ppb
SO2
4.54ppb
NO2
0.17ppm
CO
AQI 52
Moderate
9.71μg/m³
PM2.5
43.00μg/m³
PM10
14.10ppb
O3
0.83ppb
SO2
4.07ppb
NO2
0.17ppm
CO
AQI 33
Good
5.84μg/m³
PM2.5
26.20μg/m³
PM10
25.46ppb
O3
0.42ppb
SO2
5.00ppb
NO2
0.20ppm
CO
AQI 33
Good
6.09μg/m³
PM2.5
26.97μg/m³
PM10
26.95ppb
O3
0.42ppb
SO2
5.02ppb
NO2
0.20ppm
CO
AQI 52
Moderate
10.21μg/m³
PM2.5
44.91μg/m³
PM10
13.22ppb
O3
0.89ppb
SO2
4.19ppb
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 Galesburg, Illinois is updated on an hourly basis.
The worst air quality in Galesburg, Illinois was recorded at 08:00:00 on 2026-09-07.
The best air quality in Galesburg, Illinois was recorded at 12:00:00 on 2026-09-06.
The real-time air quality index in Galesburg, Illinois is 54, currently categorized as Moderate.
The most common pollutant in Galesburg, Illinois is PM2.5.
If the air quality in Galesburg, Illinois is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Galesburg, Illinois at present are 10.529 μg/m3.
The current PM10 levels in Galesburg, Illinois are 46.516 μg/m3.
The current carbon monoxide (CO) level in Galesburg, Illinois is 0.176 ppm.
The current sulfur dioxide (SO2) levels in Galesburg, Illinois are 0.906 ppb.
The current ozone (O3) levels at Galesburg, Illinois is 14.442 ppm.
The current nitrogen dioxide (NO2) levels at Galesburg, Illinois is 5.344 ppb.
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