Stay updated with real-time air quality in Hazel Crest, 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)
54
Moderate
Hazel Crest, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.28 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
45.82 μg/m³
0
55
155
255
425
605+
9.19 ppb
0
55
71
86
201
201+
0.28 ppb
0
36
76
186
605
1005+
16.43 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Hazel Crest, Illinois
Hazel Crest, Illinois
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AQI 54
Moderate
10.63μg/m³
PM2.5
34.74μg/m³
PM10
27.79ppb
O3
0.28ppb
SO2
18.72ppb
NO2
0.26ppm
CO
AQI 54
Moderate
11.43μg/m³
PM2.5
47.04μg/m³
PM10
9.43ppb
O3
0.28ppb
SO2
16.18ppb
NO2
0.26ppm
CO
AQI 56
Moderate
11.79μg/m³
PM2.5
34.47μg/m³
PM10
22.83ppb
O3
0.28ppb
SO2
18.76ppb
NO2
0.26ppm
CO
AQI 56
Moderate
11.93μg/m³
PM2.5
50.59μg/m³
PM10
8.96ppb
O3
0.28ppb
SO2
15.89ppb
NO2
0.26ppm
CO
AQI 54
Moderate
11.25μg/m³
PM2.5
44.60μg/m³
PM10
9.32ppb
O3
0.28ppb
SO2
16.53ppb
NO2
0.26ppm
CO
AQI 56
Moderate
11.87μg/m³
PM2.5
51.50μg/m³
PM10
9.53ppb
O3
0.28ppb
SO2
15.78ppb
NO2
0.26ppm
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 Hazel Crest, Illinois is updated on an hourly basis.
The worst air quality in Hazel Crest, Illinois was recorded at 04:00:00 on 2026-08-12.
The best air quality in Hazel Crest, Illinois was recorded at 07:00:00 on 2026-08-12.
The real-time air quality index in Hazel Crest, Illinois is 54, currently categorized as Moderate.
The most common pollutant in Hazel Crest, Illinois is PM2.5.
If the air quality in Hazel Crest, Illinois is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Hazel Crest, Illinois at present are 11.275 μg/m3.
The current PM10 levels in Hazel Crest, Illinois are 45.819 μg/m3.
The current carbon monoxide (CO) level in Hazel Crest, Illinois is 0.26 ppm.
The current sulfur dioxide (SO2) levels in Hazel Crest, Illinois are 0.283 ppb.
The current ozone (O3) levels at Hazel Crest, Illinois is 9.187 ppm.
The current nitrogen dioxide (NO2) levels at Hazel Crest, Illinois is 16.427 ppb.
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