Stay updated with real-time air quality in Overlea, Maryland 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)
77
Moderate
Overlea, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.00 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.27 μg/m³
0
55
155
255
425
605+
63.18 ppb
0
55
71
86
201
201+
0.16 ppb
0
36
76
186
605
1005+
2.46 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Overlea, Maryland
Overlea, Maryland
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AQI 67
Moderate
4.99μg/m³
PM2.5
21.28μg/m³
PM10
60.23ppb
O3
0.25ppb
SO2
2.83ppb
NO2
0.20ppm
CO
AQI 77
Moderate
5.00μg/m³
PM2.5
21.27μg/m³
PM10
63.18ppb
O3
0.16ppb
SO2
2.46ppb
NO2
0.20ppm
CO
AQI 67
Moderate
4.99μg/m³
PM2.5
21.28μg/m³
PM10
60.23ppb
O3
0.25ppb
SO2
2.83ppb
NO2
0.20ppm
CO
AQI 80
Moderate
4.97μg/m³
PM2.5
21.08μg/m³
PM10
63.68ppb
O3
0.14ppb
SO2
2.44ppb
NO2
0.20ppm
CO
AQI 74
Moderate
5.16μg/m³
PM2.5
22.24μg/m³
PM10
62.45ppb
O3
0.19ppb
SO2
2.64ppb
NO2
0.20ppm
CO
AQI 84
Moderate
4.92μg/m³
PM2.5
20.72μg/m³
PM10
64.73ppb
O3
0.11ppb
SO2
2.42ppb
NO2
0.20ppm
CO
The air quality data for Maryland, 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 Overlea, Maryland are available every hour.
Overlea, Maryland experienced its worst air quality at 08:00:00, 2026-06-13.
The best air quality in Overlea, Maryland was observed at 08:00:00 on 2026-06-13.
The air quality in Overlea, Maryland right now is Moderate, with an AQI of 77.
In Overlea, Maryland, O3 is the most frequently found pollutant.
When air quality in Overlea, Maryland is compromised, staying indoors and wearing a mask can reduce health risks.
Overlea, Maryland currently has a PM2.5 concentration of 4.997 μg/m3.
Overlea, Maryland currently has a PM10 concentration of 21.275 μg/m3.
The current carbon monoxide (CO) level in Overlea, Maryland is 0.204 ppm.
The current sulfur dioxide (SO2) concentration in Overlea, Maryland is 0.159 ppb.
Overlea, Maryland currently has an ozone (O3) concentration of 63.177 ppm.
The current level of nitrogen dioxide (NO2) in Overlea, Maryland is 2.462 ppb.
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