Stay updated with real-time air quality in Algonquin, 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)
49
Good
Algonquin, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.34 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
41.60 μg/m³
0
55
155
255
425
605+
3.43 ppb
0
55
71
86
201
201+
0.93 ppb
0
36
76
186
605
1005+
15.23 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Algonquin, Illinois
Algonquin, Illinois
Scroll To Air Quality MapLoading...
AQI 52
Moderate
9.62μg/m³
PM2.5
42.67μg/m³
PM10
6.16ppb
O3
0.91ppb
SO2
15.56ppb
NO2
0.29ppm
CO
AQI 56
Moderate
11.66μg/m³
PM2.5
51.92μg/m³
PM10
5.73ppb
O3
0.88ppb
SO2
16.31ppb
NO2
0.29ppm
CO
AQI 38
Good
7.00μg/m³
PM2.5
31.01μg/m³
PM10
7.00ppb
O3
0.96ppb
SO2
14.39ppb
NO2
0.30ppm
CO
AQI 44
Good
8.01μg/m³
PM2.5
35.44μg/m³
PM10
6.65ppb
O3
0.94ppb
SO2
14.77ppb
NO2
0.30ppm
CO
AQI 56
Moderate
12.07μg/m³
PM2.5
45.18μg/m³
PM10
3.42ppb
O3
0.82ppb
SO2
17.91ppb
NO2
0.29ppm
CO
AQI 58
Moderate
13.18μg/m³
PM2.5
62.09μg/m³
PM10
3.11ppb
O3
0.95ppb
SO2
14.29ppb
NO2
0.30ppm
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 Algonquin, Illinois are available every hour.
Algonquin, Illinois experienced its worst air quality at 03:00:00, 2025-10-25.
The best air quality in Algonquin, Illinois was observed at 05:00:00 on 2025-10-24.
The air quality in Algonquin, Illinois right now is Good, with an AQI of 49.
In Algonquin, Illinois, PM2.5 is the most frequently found pollutant.
When air quality in Algonquin, Illinois is compromised, staying indoors and wearing a mask can reduce health risks.
Algonquin, Illinois currently has a PM2.5 concentration of 9.369 μg/m3.
Algonquin, Illinois currently has a PM10 concentration of 41.328 μg/m3.
The current carbon monoxide (CO) level in Algonquin, Illinois is 0.295 ppm.
The current sulfur dioxide (SO2) concentration in Algonquin, Illinois is 0.764 ppb.
Algonquin, Illinois currently has an ozone (O3) concentration of 4.723 ppm.
The current level of nitrogen dioxide (NO2) in Algonquin, Illinois is 14.002 ppb.
All Rights Reserved © Ambee Inc. 2025