Stay updated with real-time air quality in Swansea, 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)
33
Good
Swansea, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.07 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.73 μg/m³
0
55
155
255
425
605+
24.51 ppb
0
55
71
86
201
201+
0.59 ppb
0
36
76
186
605
1005+
3.72 ppb
0
54
101
361
1250
2050+
0.32 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Swansea, Illinois
Swansea, Illinois
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AQI 33
Good
5.94μg/m³
PM2.5
27.53μg/m³
PM10
24.37ppb
O3
0.61ppb
SO2
3.71ppb
NO2
0.32ppm
CO
AQI 38
Good
6.74μg/m³
PM2.5
30.49μg/m³
PM10
23.41ppb
O3
0.58ppb
SO2
3.71ppb
NO2
0.32ppm
CO
AQI 38
Good
6.74μg/m³
PM2.5
30.66μg/m³
PM10
23.99ppb
O3
0.60ppb
SO2
3.68ppb
NO2
0.31ppm
CO
AQI 38
Good
6.74μg/m³
PM2.5
30.66μg/m³
PM10
23.99ppb
O3
0.60ppb
SO2
3.68ppb
NO2
0.31ppm
CO
AQI 33
Good
6.44μg/m³
PM2.5
29.32μg/m³
PM10
26.22ppb
O3
0.57ppb
SO2
3.69ppb
NO2
0.32ppm
CO
AQI 44
Good
7.62μg/m³
PM2.5
34.07μg/m³
PM10
21.11ppb
O3
0.53ppb
SO2
3.62ppb
NO2
0.32ppm
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 Swansea, Illinois is updated every hour.
The worst air quality in Swansea, Illinois in the last 24 hours was observed at 01:00:00 on 2025-09-01.
In the last 24 hrs, the best air quality in Swansea, Illinois was observed at 10:00:00 on 2025-09-02.
The current air quality in Swansea, Illinois is 22, categorized as Good based on real-time data.
The most common pollutant in Swansea, Illinois is PM2.5.
If the air quality in Swansea, Illinois is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Swansea, Illinois is 4.151 μg/m3.
The current PM10 concentration at Swansea, Illinois is 22.293 μg/m3.
The current carbon monoxide (CO) concentration at Swansea, Illinois is 0.199 ppm.
The current sulfur dioxide (SO2) concentration at Swansea, Illinois is 0.85 ppb.
The current ozone (O3) concentration at Swansea, Illinois is 20.384 ppm.
The current nitrogen dioxide (NO2) concentration at Swansea, Illinois is 7.195 ppb.
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