Stay updated with real-time air quality in Round Lake Beach, 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)
62
Moderate
Round Lake Beach, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
14.53 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
33.78 μg/m³
0
55
155
255
425
605+
47.09 ppb
0
55
71
86
201
201+
0.36 ppb
0
36
76
186
605
1005+
19.10 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Round Lake Beach, Illinois
Round Lake Beach, Illinois
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AQI 56
Moderate
11.52μg/m³
PM2.5
56.59μg/m³
PM10
43.70ppb
O3
0.97ppb
SO2
7.07ppb
NO2
0.28ppm
CO
AQI 62
Moderate
14.78μg/m³
PM2.5
55.91μg/m³
PM10
46.40ppb
O3
0.96ppb
SO2
7.57ppb
NO2
0.28ppm
CO
AQI 69
Moderate
19.08μg/m³
PM2.5
53.41μg/m³
PM10
40.85ppb
O3
0.94ppb
SO2
6.76ppb
NO2
0.28ppm
CO
AQI 54
Moderate
11.15μg/m³
PM2.5
47.36μg/m³
PM10
42.34ppb
O3
0.95ppb
SO2
5.24ppb
NO2
0.28ppm
CO
AQI 69
Moderate
19.08μg/m³
PM2.5
53.41μg/m³
PM10
40.85ppb
O3
0.94ppb
SO2
6.76ppb
NO2
0.28ppm
CO
AQI 62
Moderate
14.97μg/m³
PM2.5
50.42μg/m³
PM10
42.42ppb
O3
0.92ppb
SO2
6.21ppb
NO2
0.29ppm
CO
Air quality and pollutant data for Illinois, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Round Lake Beach, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Round Lake Beach, Illinois was at its worst at 12:00:00 on 2026-10-22.
In the last 24 hours, the best air quality in Round Lake Beach, Illinois was observed at 03:00:00 on 2026-10-22.
As of now, the AQI in Round Lake Beach, Illinois is 62, indicating Moderate conditions.
Round Lake Beach, Illinois air has the highest levels of PM2.5.
Poor air quality in Round Lake Beach, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Round Lake Beach, Illinois are currently 14.53 μg/m3.
The PM10 concentration in Round Lake Beach, Illinois is 33.784 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Round Lake Beach, Illinois is 0.287 ppm.
Currently, Round Lake Beach, Illinois has a sulfur dioxide (SO2) concentration of 0.357 ppb.
The current ozone (O3) level in Round Lake Beach, Illinois at the moment is 47.086 ppm.
Nitrogen dioxide (NO2) level in Round Lake Beach, Illinois at the moment is 19.098 ppb.
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