Stay updated with real-time air quality in Severn, 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)
33
Good
Severn, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.57 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
23.14 μg/m³
0
55
155
255
425
605+
16.31 ppb
0
55
71
86
201
201+
0.20 ppb
0
36
76
186
605
1005+
5.17 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Severn, Maryland
Severn, Maryland
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AQI 27
Good
5.44μg/m³
PM2.5
23.04μg/m³
PM10
18.99ppb
O3
0.18ppb
SO2
5.58ppb
NO2
0.18ppm
CO
AQI 33
Good
5.94μg/m³
PM2.5
23.58μg/m³
PM10
27.39ppb
O3
0.23ppb
SO2
4.86ppb
NO2
0.21ppm
CO
AQI 33
Good
5.71μg/m³
PM2.5
22.19μg/m³
PM10
12.49ppb
O3
0.24ppb
SO2
5.20ppb
NO2
0.22ppm
CO
AQI 33
Good
5.66μg/m³
PM2.5
21.89μg/m³
PM10
11.91ppb
O3
0.24ppb
SO2
5.45ppb
NO2
0.22ppm
CO
AQI 33
Good
5.69μg/m³
PM2.5
22.08μg/m³
PM10
10.57ppb
O3
0.24ppb
SO2
5.42ppb
NO2
0.22ppm
CO
AQI 27
Good
5.45μg/m³
PM2.5
22.52μg/m³
PM10
17.14ppb
O3
0.21ppb
SO2
6.16ppb
NO2
0.20ppm
CO
Air quality and pollutant data for Maryland, 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 Severn, Maryland is updated every hour for accuracy.
In the past 24 hours, the air quality in Severn, Maryland was at its worst at 08:00:00 on 2026-05-20.
In the last 24 hours, the best air quality in Severn, Maryland was observed at 09:00:00 on 2026-05-21.
As of now, the AQI in Severn, Maryland is 33, indicating Good conditions.
Severn, Maryland air has the highest levels of PM2.5.
Poor air quality in Severn, Maryland means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Severn, Maryland are currently 5.567 μg/m3.
The PM10 concentration in Severn, Maryland is 23.142 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Severn, Maryland is 0.195 ppm.
Currently, Severn, Maryland has a sulfur dioxide (SO2) concentration of 0.203 ppb.
The current ozone (O3) level in Severn, Maryland at the moment is 16.309 ppm.
Nitrogen dioxide (NO2) level in Severn, Maryland at the moment is 5.168 ppb.
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