Stay updated with real-time air quality in Fairview Heights, 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
Fairview Heights, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.68 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
31.49 μg/m³
0
55
155
255
425
605+
56.17 ppb
0
55
71
86
201
201+
1.90 ppb
0
36
76
186
605
1005+
5.26 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Fairview Heights, Illinois
Fairview Heights, Illinois
Scroll To Air Quality MapLoading...
AQI 51
Moderate
7.63μg/m³
PM2.5
31.53μg/m³
PM10
54.52ppb
O3
1.89ppb
SO2
5.26ppb
NO2
0.20ppm
CO
AQI 51
Moderate
7.03μg/m³
PM2.5
36.11μg/m³
PM10
55.02ppb
O3
1.75ppb
SO2
5.07ppb
NO2
0.19ppm
CO
AQI 50
Good
7.51μg/m³
PM2.5
39.07μg/m³
PM10
54.35ppb
O3
1.82ppb
SO2
5.18ppb
NO2
0.19ppm
CO
AQI 51
Moderate
7.03μg/m³
PM2.5
36.11μg/m³
PM10
55.02ppb
O3
1.75ppb
SO2
5.07ppb
NO2
0.19ppm
CO
AQI 54
Moderate
8.07μg/m³
PM2.5
45.51μg/m³
PM10
55.89ppb
O3
1.97ppb
SO2
5.56ppb
NO2
0.20ppm
CO
AQI 52
Moderate
10.03μg/m³
PM2.5
45.24μg/m³
PM10
48.14ppb
O3
2.29ppb
SO2
7.28ppb
NO2
0.20ppm
CO
Air quality data and pollutant measurements for Illinois, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Fairview Heights, Illinois is updated every hour.
The worst air quality in Fairview Heights, Illinois in the last 24 hours was observed at 02:00:00 on 2026-10-22.
In the last 24 hrs, the best air quality in Fairview Heights, Illinois was observed at 12:00:00 on 2026-10-22.
The current air quality in Fairview Heights, Illinois is 54, categorized as Moderate based on real-time data.
The most common pollutant in Fairview Heights, Illinois is O3.
If the air quality in Fairview Heights, Illinois is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Fairview Heights, Illinois is 7.679 μg/m3.
The current PM10 concentration at Fairview Heights, Illinois is 31.491 μg/m3.
The current carbon monoxide (CO) concentration at Fairview Heights, Illinois is 0.196 ppm.
The current sulfur dioxide (SO2) concentration at Fairview Heights, Illinois is 1.896 ppb.
The current ozone (O3) concentration at Fairview Heights, Illinois is 56.173 ppm.
The current nitrogen dioxide (NO2) concentration at Fairview Heights, Illinois is 5.257 ppb.
All Rights Reserved © Ambee Inc. 2025