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)
47
Good
Garrison, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.45 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
23.11 μg/m³
0
55
155
255
425
605+
51.27 ppb
0
55
71
86
201
201+
0.25 ppb
0
36
76
186
605
1005+
6.12 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Garrison, Maryland
Garrison, Maryland
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AQI 47
Good
5.26μg/m³
PM2.5
22.17μg/m³
PM10
50.89ppb
O3
0.24ppb
SO2
5.37ppb
NO2
0.15ppm
CO
AQI 47
Good
5.49μg/m³
PM2.5
23.25μg/m³
PM10
51.27ppb
O3
0.25ppb
SO2
6.13ppb
NO2
0.15ppm
CO
AQI 47
Good
5.28μg/m³
PM2.5
22.43μg/m³
PM10
50.92ppb
O3
0.25ppb
SO2
5.66ppb
NO2
0.14ppm
CO
AQI 47
Good
5.50μg/m³
PM2.5
23.30μg/m³
PM10
51.31ppb
O3
0.25ppb
SO2
6.25ppb
NO2
0.14ppm
CO
AQI 47
Good
5.34μg/m³
PM2.5
22.70μg/m³
PM10
50.84ppb
O3
0.25ppb
SO2
5.52ppb
NO2
0.14ppm
CO
AQI 48
Good
4.17μg/m³
PM2.5
12.11μg/m³
PM10
51.89ppb
O3
0.26ppb
SO2
3.45ppb
NO2
0.15ppm
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 11:00:00 on 2026-07-22.
In the last 24 hrs, the best air quality in Garrison, Maryland was observed at 03:00:00 on 2026-07-23.
The current air quality in Garrison, Maryland is 47, 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 5.447 μg/m3.
The current PM10 concentration at Garrison, Maryland is 23.108 μg/m3.
The current carbon monoxide (CO) concentration at Garrison, Maryland is 0.145 ppm.
The current sulfur dioxide (SO2) concentration at Garrison, Maryland is 0.252 ppb.
The current ozone (O3) concentration at Garrison, Maryland is 51.266 ppm.
The current nitrogen dioxide (NO2) concentration at Garrison, Maryland is 6.118 ppb.
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