Stay updated with real-time air quality in Hoffman Estates, 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)
137
Unhealthy for sensitive groups
Hoffman Estates, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
50.12 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
202.26 μg/m³
0
55
155
255
425
605+
35.75 ppb
0
55
71
86
201
201+
0.97 ppb
0
36
76
186
605
1005+
5.38 ppb
0
54
101
361
1250
2050+
0.33 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Hoffman Estates, Illinois
Hoffman Estates, Illinois
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AQI 122
Unhealthy for sensitive groups
43.86μg/m³
PM2.5
171.59μg/m³
PM10
42.25ppb
O3
1.00ppb
SO2
5.33ppb
NO2
0.33ppm
CO
AQI 124
Unhealthy for sensitive groups
44.99μg/m³
PM2.5
185.13μg/m³
PM10
37.84ppb
O3
1.00ppb
SO2
5.33ppb
NO2
0.33ppm
CO
AQI 124
Unhealthy for sensitive groups
44.99μg/m³
PM2.5
185.13μg/m³
PM10
37.84ppb
O3
1.00ppb
SO2
5.33ppb
NO2
0.33ppm
CO
AQI 122
Unhealthy for sensitive groups
43.52μg/m³
PM2.5
171.47μg/m³
PM10
42.08ppb
O3
0.98ppb
SO2
5.37ppb
NO2
0.33ppm
CO
AQI 142
Unhealthy for sensitive groups
51.59μg/m³
PM2.5
233.07μg/m³
PM10
48.04ppb
O3
0.98ppb
SO2
5.37ppb
NO2
0.32ppm
CO
AQI 115
Unhealthy for sensitive groups
40.87μg/m³
PM2.5
179.78μg/m³
PM10
42.07ppb
O3
1.00ppb
SO2
5.33ppb
NO2
0.33ppm
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 Hoffman Estates, Illinois are available every hour.
Hoffman Estates, Illinois experienced its worst air quality at 09:00:00, 2025-06-05.
The best air quality in Hoffman Estates, Illinois was observed at 10:00:00 on 2025-06-05.
The air quality in Hoffman Estates, Illinois right now is Unhealthy for Sensitive Groups, with an AQI of 137.
In Hoffman Estates, Illinois, PM2.5 is the most frequently found pollutant.
When air quality in Hoffman Estates, Illinois is compromised, staying indoors and wearing a mask can reduce health risks.
Hoffman Estates, Illinois currently has a PM2.5 concentration of 50.117 μg/m3.
Hoffman Estates, Illinois currently has a PM10 concentration of 202.26 μg/m3.
The current carbon monoxide (CO) level in Hoffman Estates, Illinois is 0.327 ppm.
The current sulfur dioxide (SO2) concentration in Hoffman Estates, Illinois is 0.973 ppb.
Hoffman Estates, Illinois currently has an ozone (O3) concentration of 35.751 ppm.
The current level of nitrogen dioxide (NO2) in Hoffman Estates, Illinois is 5.382 ppb.
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