Stay updated with real-time air quality in Towson, 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)
27
Good
Towson, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.89 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.16 μg/m³
0
55
155
255
425
605+
10.46 ppb
0
55
71
86
201
201+
0.73 ppb
0
36
76
186
605
1005+
28.07 ppb
0
54
101
361
1250
2050+
0.38 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Towson, Maryland
Towson, Maryland
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AQI 27
Good
4.87μg/m³
PM2.5
20.72μg/m³
PM10
10.90ppb
O3
0.72ppb
SO2
27.00ppb
NO2
0.38ppm
CO
AQI 27
Good
4.80μg/m³
PM2.5
20.79μg/m³
PM10
11.07ppb
O3
0.72ppb
SO2
26.54ppb
NO2
0.38ppm
CO
AQI 28
Good
5.37μg/m³
PM2.5
19.90μg/m³
PM10
9.86ppb
O3
0.75ppb
SO2
30.00ppb
NO2
0.38ppm
CO
AQI 28
Good
5.37μg/m³
PM2.5
19.90μg/m³
PM10
9.86ppb
O3
0.75ppb
SO2
30.00ppb
NO2
0.38ppm
CO
AQI 38
Good
7.00μg/m³
PM2.5
20.03μg/m³
PM10
8.24ppb
O3
0.78ppb
SO2
34.50ppb
NO2
0.38ppm
CO
AQI 27
Good
4.77μg/m³
PM2.5
20.95μg/m³
PM10
11.12ppb
O3
0.72ppb
SO2
26.22ppb
NO2
0.38ppm
CO
Air quality data and pollutant measurements for Maryland, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Towson, Maryland is updated every hour.
The worst air quality in Towson, Maryland in the last 24 hours was observed at 03:00:00 on 2026-01-22.
In the last 24 hrs, the best air quality in Towson, Maryland was observed at 08:00:00 on 2026-01-23.
The current air quality in Towson, Maryland is 27, categorized as Good based on real-time data.
The most common pollutant in Towson, Maryland is PM2.5.
If the air quality in Towson, Maryland is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Towson, Maryland is 4.888 μg/m3.
The current PM10 concentration at Towson, Maryland is 20.155 μg/m3.
The current carbon monoxide (CO) concentration at Towson, Maryland is 0.376 ppm.
The current sulfur dioxide (SO2) concentration at Towson, Maryland is 0.733 ppb.
The current ozone (O3) concentration at Towson, Maryland is 10.464 ppm.
The current nitrogen dioxide (NO2) concentration at Towson, Maryland is 28.073 ppb.
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