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)
28
Good
Garrison, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.97 μg/m³
0
55
155
255
425
605+
30.10 ppb
0
55
71
86
201
201+
0.34 ppb
0
36
76
186
605
1005+
5.61 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Garrison, Maryland
Garrison, Maryland
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AQI 28
Good
5.03μg/m³
PM2.5
21.14μg/m³
PM10
29.61ppb
O3
0.30ppb
SO2
15.36ppb
NO2
0.22ppm
CO
AQI 28
Good
4.99μg/m³
PM2.5
20.96μg/m³
PM10
29.61ppb
O3
0.30ppb
SO2
17.05ppb
NO2
0.22ppm
CO
AQI 27
Good
5.07μg/m³
PM2.5
21.23μg/m³
PM10
29.49ppb
O3
0.30ppb
SO2
15.92ppb
NO2
0.23ppm
CO
AQI 28
Good
5.01μg/m³
PM2.5
21.08μg/m³
PM10
29.63ppb
O3
0.30ppb
SO2
17.32ppb
NO2
0.22ppm
CO
AQI 28
Good
5.07μg/m³
PM2.5
21.05μg/m³
PM10
29.57ppb
O3
0.29ppb
SO2
15.61ppb
NO2
0.23ppm
CO
AQI 33
Good
6.00μg/m³
PM2.5
26.70μg/m³
PM10
24.19ppb
O3
0.32ppb
SO2
10.17ppb
NO2
0.22ppm
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 08:00:00 on 2026-06-07.
In the last 24 hrs, the best air quality in Garrison, Maryland was observed at 03:00:00 on 2026-06-08.
The current air quality in Garrison, Maryland is 28, categorized as Good based on real-time data.
The most common pollutant in Garrison, Maryland is O3.
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 4.255 μg/m3.
The current PM10 concentration at Garrison, Maryland is 14.966 μg/m3.
The current carbon monoxide (CO) concentration at Garrison, Maryland is 0.224 ppm.
The current sulfur dioxide (SO2) concentration at Garrison, Maryland is 0.343 ppb.
The current ozone (O3) concentration at Garrison, Maryland is 30.101 ppm.
The current nitrogen dioxide (NO2) concentration at Garrison, Maryland is 5.611 ppb.
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