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)
38
Good
Algonquin, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.97 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
31.51 μg/m³
0
55
155
255
425
605+
17.55 ppb
0
55
71
86
201
201+
0.59 ppb
0
36
76
186
605
1005+
7.93 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Algonquin, Illinois
Algonquin, Illinois
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AQI 52
Moderate
9.77μg/m³
PM2.5
44.14μg/m³
PM10
18.64ppb
O3
0.65ppb
SO2
6.22ppb
NO2
0.15ppm
CO
AQI 52
Moderate
10.29μg/m³
PM2.5
46.19μg/m³
PM10
18.73ppb
O3
0.64ppb
SO2
6.19ppb
NO2
0.15ppm
CO
AQI 49
Good
9.00μg/m³
PM2.5
41.00μg/m³
PM10
18.50ppb
O3
0.68ppb
SO2
6.26ppb
NO2
0.15ppm
CO
AQI 49
Good
9.29μg/m³
PM2.5
42.20μg/m³
PM10
18.55ppb
O3
0.67ppb
SO2
6.25ppb
NO2
0.15ppm
CO
AQI 56
Moderate
12.09μg/m³
PM2.5
32.29μg/m³
PM10
18.06ppb
O3
0.67ppb
SO2
3.43ppb
NO2
0.15ppm
CO
AQI 54
Moderate
10.98μg/m³
PM2.5
49.76μg/m³
PM10
18.44ppb
O3
0.65ppb
SO2
6.45ppb
NO2
0.15ppm
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 06:00:00, 2025-12-10.
The best air quality in Algonquin, Illinois was observed at 09:00:00 on 2025-12-09.
The air quality in Algonquin, Illinois right now is Good, with an AQI of 38.
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 6.973 μg/m3.
Algonquin, Illinois currently has a PM10 concentration of 31.512 μg/m3.
The current carbon monoxide (CO) level in Algonquin, Illinois is 0.149 ppm.
The current sulfur dioxide (SO2) concentration in Algonquin, Illinois is 0.595 ppb.
Algonquin, Illinois currently has an ozone (O3) concentration of 17.555 ppm.
The current level of nitrogen dioxide (NO2) in Algonquin, Illinois is 7.934 ppb.
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