Stay updated with real-time air quality in Machesney Park, 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)
39
Good
Machesney Park, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.29 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
24.13 μg/m³
0
55
155
255
425
605+
42.01 ppb
0
55
71
86
201
201+
1.09 ppb
0
36
76
186
605
1005+
2.38 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Machesney Park, Illinois
Machesney Park, Illinois
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AQI 39
Good
5.29μg/m³
PM2.5
24.18μg/m³
PM10
42.00ppb
O3
1.08ppb
SO2
2.35ppb
NO2
0.14ppm
CO
AQI 39
Good
5.46μg/m³
PM2.5
23.64μg/m³
PM10
42.29ppb
O3
1.11ppb
SO2
3.05ppb
NO2
0.14ppm
CO
AQI 39
Good
5.20μg/m³
PM2.5
23.01μg/m³
PM10
41.83ppb
O3
1.26ppb
SO2
2.33ppb
NO2
0.14ppm
CO
AQI 40
Good
5.81μg/m³
PM2.5
23.07μg/m³
PM10
42.93ppb
O3
1.08ppb
SO2
4.20ppb
NO2
0.14ppm
CO
AQI 41
Good
5.90μg/m³
PM2.5
24.29μg/m³
PM10
44.02ppb
O3
1.45ppb
SO2
4.34ppb
NO2
0.14ppm
CO
AQI 39
Good
5.33μg/m³
PM2.5
24.59μg/m³
PM10
41.69ppb
O3
1.36ppb
SO2
4.35ppb
NO2
0.13ppm
CO
The air quality data for Illinois, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Machesney Park, Illinois are available every hour.
Machesney Park, Illinois experienced its worst air quality at 03:00:00, 2026-07-23.
The best air quality in Machesney Park, Illinois was observed at 05:00:00 on 2026-07-23.
The air quality in Machesney Park, Illinois right now is Good, with an AQI of 39.
In Machesney Park, Illinois, O3 is the most frequently found pollutant.
When air quality in Machesney Park, Illinois is compromised, staying indoors and wearing a mask can reduce health risks.
Machesney Park, Illinois currently has a PM2.5 concentration of 5.295 μg/m3.
Machesney Park, Illinois currently has a PM10 concentration of 24.131 μg/m3.
The current carbon monoxide (CO) level in Machesney Park, Illinois is 0.141 ppm.
The current sulfur dioxide (SO2) concentration in Machesney Park, Illinois is 1.086 ppb.
Machesney Park, Illinois currently has an ozone (O3) concentration of 42.006 ppm.
The current level of nitrogen dioxide (NO2) in Machesney Park, Illinois is 2.38 ppb.
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