Stay updated with real-time air quality in Hagerstown, 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)
58
Moderate
Hagerstown, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
13.43 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
60.41 μg/m³
0
55
155
255
425
605+
30.19 ppb
0
55
71
86
201
201+
1.78 ppb
0
36
76
186
605
1005+
9.85 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Hagerstown, Maryland
Hagerstown, Maryland
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AQI 41
Good
4.39μg/m³
PM2.5
17.89μg/m³
PM10
44.10ppb
O3
0.69ppb
SO2
7.46ppb
NO2
0.24ppm
CO
AQI 54
Moderate
8.95μg/m³
PM2.5
43.69μg/m³
PM10
55.83ppb
O3
0.70ppb
SO2
8.45ppb
NO2
0.24ppm
CO
AQI 58
Moderate
12.89μg/m³
PM2.5
39.40μg/m³
PM10
44.98ppb
O3
0.69ppb
SO2
4.03ppb
NO2
0.24ppm
CO
AQI 64
Moderate
8.20μg/m³
PM2.5
34.52μg/m³
PM10
58.70ppb
O3
0.69ppb
SO2
8.46ppb
NO2
0.24ppm
CO
AQI 64
Moderate
9.16μg/m³
PM2.5
28.23μg/m³
PM10
58.80ppb
O3
0.69ppb
SO2
8.44ppb
NO2
0.24ppm
CO
AQI 74
Moderate
8.82μg/m³
PM2.5
27.18μg/m³
PM10
61.66ppb
O3
0.60ppb
SO2
8.71ppb
NO2
0.24ppm
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 Hagerstown, Maryland is updated every hour.
The worst air quality in Hagerstown, Maryland in the last 24 hours was observed at 07:00:00 on 2026-04-23.
In the last 24 hrs, the best air quality in Hagerstown, Maryland was observed at 02:00:00 on 2026-04-23.
The current air quality in Hagerstown, Maryland is 42, categorized as Good based on real-time data.
The most common pollutant in Hagerstown, Maryland is O3.
If the air quality in Hagerstown, Maryland is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Hagerstown, Maryland is 4.525 μg/m3.
The current PM10 concentration at Hagerstown, Maryland is 18.258 μg/m3.
The current carbon monoxide (CO) concentration at Hagerstown, Maryland is 0.243 ppm.
The current sulfur dioxide (SO2) concentration at Hagerstown, Maryland is 0.692 ppb.
The current ozone (O3) concentration at Hagerstown, Maryland is 44.567 ppm.
The current nitrogen dioxide (NO2) concentration at Hagerstown, Maryland is 7.519 ppb.
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