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)
38
Good
Round Lake Beach, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.14 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.68 μg/m³
0
55
155
255
425
605+
23.61 ppb
0
55
71
86
201
201+
0.87 ppb
0
36
76
186
605
1005+
13.18 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Round Lake Beach, Illinois
Round Lake Beach, Illinois
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AQI 33
Good
6.12μg/m³
PM2.5
25.90μg/m³
PM10
24.38ppb
O3
1.30ppb
SO2
13.11ppb
NO2
0.24ppm
CO
AQI 33
Good
6.16μg/m³
PM2.5
25.98μg/m³
PM10
24.87ppb
O3
1.28ppb
SO2
14.80ppb
NO2
0.24ppm
CO
AQI 33
Good
6.19μg/m³
PM2.5
26.03μg/m³
PM10
26.35ppb
O3
1.26ppb
SO2
16.40ppb
NO2
0.25ppm
CO
AQI 33
Good
6.27μg/m³
PM2.5
25.79μg/m³
PM10
24.69ppb
O3
1.30ppb
SO2
12.67ppb
NO2
0.24ppm
CO
AQI 33
Good
6.19μg/m³
PM2.5
26.03μg/m³
PM10
26.35ppb
O3
1.26ppb
SO2
16.40ppb
NO2
0.25ppm
CO
AQI 33
Good
6.14μg/m³
PM2.5
25.82μg/m³
PM10
26.25ppb
O3
1.28ppb
SO2
13.85ppb
NO2
0.26ppm
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 05:00:00 on 2026-01-24.
In the last 24 hours, the best air quality in Round Lake Beach, Illinois was observed at 01:00:00 on 2026-01-25.
As of now, the AQI in Round Lake Beach, Illinois is 33, indicating Good 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 6.117 μg/m3.
The PM10 concentration in Round Lake Beach, Illinois is 25.897 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Round Lake Beach, Illinois is 0.243 ppm.
Currently, Round Lake Beach, Illinois has a sulfur dioxide (SO2) concentration of 1.303 ppb.
The current ozone (O3) level in Round Lake Beach, Illinois at the moment is 24.384 ppm.
Nitrogen dioxide (NO2) level in Round Lake Beach, Illinois at the moment is 13.113 ppb.
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