Stay updated with real-time air quality in Oswego, 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)
82
Moderate
Oswego, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
25.67 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
111.19 μg/m³
0
55
155
255
425
605+
35.91 ppb
0
55
71
86
201
201+
0.47 ppb
0
36
76
186
605
1005+
7.72 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Oswego, Illinois
Oswego, Illinois
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AQI 69
Moderate
19.37μg/m³
PM2.5
83.69μg/m³
PM10
55.81ppb
O3
1.30ppb
SO2
1.37ppb
NO2
0.24ppm
CO
AQI 69
Moderate
19.35μg/m³
PM2.5
83.86μg/m³
PM10
56.08ppb
O3
1.30ppb
SO2
1.38ppb
NO2
0.24ppm
CO
AQI 64
Moderate
16.19μg/m³
PM2.5
60.19μg/m³
PM10
51.71ppb
O3
1.18ppb
SO2
1.84ppb
NO2
0.23ppm
CO
AQI 71
Moderate
19.75μg/m³
PM2.5
85.45μg/m³
PM10
56.41ppb
O3
1.30ppb
SO2
1.37ppb
NO2
0.25ppm
CO
AQI 66
Moderate
16.87μg/m³
PM2.5
72.10μg/m³
PM10
55.47ppb
O3
1.31ppb
SO2
1.65ppb
NO2
0.23ppm
CO
AQI 60
Moderate
13.78μg/m³
PM2.5
72.25μg/m³
PM10
51.94ppb
O3
1.19ppb
SO2
1.48ppb
NO2
0.23ppm
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 Oswego, Illinois are available every hour.
Oswego, Illinois experienced its worst air quality at 10:00:00, 2025-07-21.
The best air quality in Oswego, Illinois was observed at 02:00:00 on 2025-07-21.
The air quality in Oswego, Illinois right now is Moderate, with an AQI of 75.
In Oswego, Illinois, PM2.5 is the most frequently found pollutant.
When air quality in Oswego, Illinois is compromised, staying indoors and wearing a mask can reduce health risks.
Oswego, Illinois currently has a PM2.5 concentration of 22.23 μg/m3.
Oswego, Illinois currently has a PM10 concentration of 93.054 μg/m3.
The current carbon monoxide (CO) level in Oswego, Illinois is 0.245 ppm.
The current sulfur dioxide (SO2) concentration in Oswego, Illinois is 1.221 ppb.
Oswego, Illinois currently has an ozone (O3) concentration of 42.211 ppm.
The current level of nitrogen dioxide (NO2) in Oswego, Illinois is 1.475 ppb.
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