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)
20
Good
Galesburg, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
1.84 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.16 μg/m³
0
55
155
255
425
605+
21.99 ppb
0
55
71
86
201
201+
0.18 ppb
0
36
76
186
605
1005+
1.41 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Galesburg, Illinois
Galesburg, Illinois
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AQI 19
Good
1.85μg/m³
PM2.5
9.03μg/m³
PM10
21.48ppb
O3
0.34ppb
SO2
1.52ppb
NO2
0.11ppm
CO
AQI 19
Good
2.20μg/m³
PM2.5
13.32μg/m³
PM10
20.44ppb
O3
0.30ppb
SO2
1.99ppb
NO2
0.12ppm
CO
AQI 21
Good
1.63μg/m³
PM2.5
7.00μg/m³
PM10
23.01ppb
O3
0.24ppb
SO2
1.35ppb
NO2
0.11ppm
CO
AQI 20
Good
1.74μg/m³
PM2.5
7.28μg/m³
PM10
22.25ppb
O3
0.23ppb
SO2
1.37ppb
NO2
0.10ppm
CO
AQI 21
Good
1.70μg/m³
PM2.5
7.01μg/m³
PM10
22.96ppb
O3
0.23ppb
SO2
1.37ppb
NO2
0.10ppm
CO
AQI 20
Good
2.19μg/m³
PM2.5
9.00μg/m³
PM10
21.82ppb
O3
0.22ppb
SO2
1.35ppb
NO2
0.11ppm
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 06:00:00 on 2025-10-21.
The best air quality in Galesburg, Illinois was recorded at 12:00:00 on 2025-10-21.
The real-time air quality index in Galesburg, Illinois is 20, currently categorized as Good.
The most common pollutant in Galesburg, Illinois is O3.
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 1.844 μg/m3.
The current PM10 levels in Galesburg, Illinois are 8.16 μg/m3.
The current carbon monoxide (CO) level in Galesburg, Illinois is 0.112 ppm.
The current sulfur dioxide (SO2) levels in Galesburg, Illinois are 0.179 ppb.
The current ozone (O3) levels at Galesburg, Illinois is 21.987 ppm.
The current nitrogen dioxide (NO2) levels at Galesburg, Illinois is 1.412 ppb.
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