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)
54
Moderate
Swansea, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
11.45 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
43.91 μg/m³
0
55
155
255
425
605+
16.67 ppb
0
55
71
86
201
201+
0.41 ppb
0
36
76
186
605
1005+
14.10 ppb
0
54
101
361
1250
2050+
0.57 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Swansea, Illinois
Swansea, Illinois
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AQI 52
Moderate
10.11μg/m³
PM2.5
49.13μg/m³
PM10
15.74ppb
O3
0.51ppb
SO2
17.00ppb
NO2
0.56ppm
CO
AQI 54
Moderate
10.58μg/m³
PM2.5
38.10μg/m³
PM10
15.62ppb
O3
0.39ppb
SO2
13.75ppb
NO2
0.57ppm
CO
AQI 49
Good
9.28μg/m³
PM2.5
49.44μg/m³
PM10
15.96ppb
O3
0.42ppb
SO2
13.38ppb
NO2
0.56ppm
CO
AQI 49
Good
9.28μg/m³
PM2.5
49.44μg/m³
PM10
15.96ppb
O3
0.42ppb
SO2
13.38ppb
NO2
0.56ppm
CO
AQI 54
Moderate
10.70μg/m³
PM2.5
40.40μg/m³
PM10
14.52ppb
O3
0.34ppb
SO2
12.81ppb
NO2
0.57ppm
CO
AQI 56
Moderate
12.36μg/m³
PM2.5
56.48μg/m³
PM10
7.08ppb
O3
0.28ppb
SO2
15.25ppb
NO2
0.59ppm
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 09:00:00 on 2025-06-05.
In the last 24 hrs, the best air quality in Swansea, Illinois was observed at 02:00:00 on 2025-06-05.
The current air quality in Swansea, Illinois is 54, categorized as Moderate 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 11.454 μg/m3.
The current PM10 concentration at Swansea, Illinois is 43.907 μg/m3.
The current carbon monoxide (CO) concentration at Swansea, Illinois is 0.568 ppm.
The current sulfur dioxide (SO2) concentration at Swansea, Illinois is 0.41 ppb.
The current ozone (O3) concentration at Swansea, Illinois is 16.674 ppm.
The current nitrogen dioxide (NO2) concentration at Swansea, Illinois is 14.101 ppb.
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