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)
38
Good
Hagerstown, Maryland
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
7.49 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
33.52 μg/m³
0
55
155
255
425
605+
37.42 ppb
0
55
71
86
201
201+
0.20 ppb
0
36
76
186
605
1005+
4.78 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Hagerstown, Maryland
Hagerstown, Maryland
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AQI 52
Moderate
10.32μg/m³
PM2.5
44.76μg/m³
PM10
45.68ppb
O3
0.18ppb
SO2
2.08ppb
NO2
0.20ppm
CO
AQI 52
Moderate
10.40μg/m³
PM2.5
40.02μg/m³
PM10
40.58ppb
O3
0.18ppb
SO2
2.03ppb
NO2
0.20ppm
CO
AQI 54
Moderate
10.56μg/m³
PM2.5
36.40μg/m³
PM10
41.99ppb
O3
0.18ppb
SO2
1.37ppb
NO2
0.20ppm
CO
AQI 54
Moderate
10.77μg/m³
PM2.5
35.30μg/m³
PM10
41.35ppb
O3
0.18ppb
SO2
2.40ppb
NO2
0.20ppm
CO
AQI 54
Moderate
10.70μg/m³
PM2.5
46.90μg/m³
PM10
41.73ppb
O3
0.18ppb
SO2
2.42ppb
NO2
0.20ppm
CO
AQI 54
Moderate
10.20μg/m³
PM2.5
60.83μg/m³
PM10
44.01ppb
O3
0.18ppb
SO2
2.46ppb
NO2
0.20ppm
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 09:00:00 on 2025-07-25.
In the last 24 hrs, the best air quality in Hagerstown, Maryland was observed at 11:00:00 on 2025-07-24.
The current air quality in Hagerstown, Maryland is 52, categorized as Moderate based on real-time data.
The most common pollutant in Hagerstown, Maryland is PM2.5.
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 10.322 μg/m3.
The current PM10 concentration at Hagerstown, Maryland is 44.587 μg/m3.
The current carbon monoxide (CO) concentration at Hagerstown, Maryland is 0.201 ppm.
The current sulfur dioxide (SO2) concentration at Hagerstown, Maryland is 0.185 ppb.
The current ozone (O3) concentration at Hagerstown, Maryland is 45.666 ppm.
The current nitrogen dioxide (NO2) concentration at Hagerstown, Maryland is 2.073 ppb.
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