Stay updated with real-time air quality in Garrison, 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)
49
Good
Garrison, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.11 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
33.53 μg/m³
0
55
155
255
425
605+
14.89 ppb
0
55
71
86
201
201+
0.21 ppb
0
36
76
186
605
1005+
11.69 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Garrison, Maryland
Garrison, Maryland
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AQI 49
Good
8.96μg/m³
PM2.5
33.93μg/m³
PM10
14.60ppb
O3
0.21ppb
SO2
10.64ppb
NO2
0.26ppm
CO
AQI 49
Good
9.12μg/m³
PM2.5
33.52μg/m³
PM10
14.88ppb
O3
0.21ppb
SO2
11.70ppb
NO2
0.26ppm
CO
AQI 49
Good
9.00μg/m³
PM2.5
33.99μg/m³
PM10
14.62ppb
O3
0.21ppb
SO2
11.10ppb
NO2
0.26ppm
CO
AQI 49
Good
9.13μg/m³
PM2.5
33.47μg/m³
PM10
14.98ppb
O3
0.21ppb
SO2
11.86ppb
NO2
0.26ppm
CO
AQI 49
Good
8.96μg/m³
PM2.5
34.26μg/m³
PM10
14.64ppb
O3
0.21ppb
SO2
10.86ppb
NO2
0.26ppm
CO
AQI 49
Good
9.32μg/m³
PM2.5
33.32μg/m³
PM10
16.46ppb
O3
0.22ppb
SO2
7.34ppb
NO2
0.27ppm
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 Garrison, Maryland is updated every hour.
The worst air quality in Garrison, Maryland in the last 24 hours was observed at 06:00:00 on 2026-08-16.
In the last 24 hrs, the best air quality in Garrison, Maryland was observed at 09:00:00 on 2026-08-17.
The current air quality in Garrison, Maryland is 49, categorized as Good based on real-time data.
The most common pollutant in Garrison, Maryland is PM2.5.
If the air quality in Garrison, Maryland is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Garrison, Maryland is 9.112 μg/m3.
The current PM10 concentration at Garrison, Maryland is 33.53 μg/m3.
The current carbon monoxide (CO) concentration at Garrison, Maryland is 0.261 ppm.
The current sulfur dioxide (SO2) concentration at Garrison, Maryland is 0.211 ppb.
The current ozone (O3) concentration at Garrison, Maryland is 14.886 ppm.
The current nitrogen dioxide (NO2) concentration at Garrison, Maryland is 11.693 ppb.
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