Stay updated with real-time air quality in Eldersburg, 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)
52
Moderate
Eldersburg, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.75 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
43.42 μg/m³
0
55
155
255
425
605+
24.54 ppb
0
55
71
86
201
201+
2.65 ppb
0
36
76
186
605
1005+
13.73 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Very high
Eldersburg, Maryland
Eldersburg, Maryland
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AQI 44
Good
8.23μg/m³
PM2.5
33.82μg/m³
PM10
46.86ppb
O3
0.47ppb
SO2
11.83ppb
NO2
0.29ppm
CO
AQI 52
Moderate
9.95μg/m³
PM2.5
40.83μg/m³
PM10
49.66ppb
O3
0.47ppb
SO2
14.10ppb
NO2
0.29ppm
CO
AQI 52
Moderate
10.26μg/m³
PM2.5
42.31μg/m³
PM10
49.76ppb
O3
0.48ppb
SO2
14.38ppb
NO2
0.29ppm
CO
AQI 52
Moderate
9.62μg/m³
PM2.5
39.31μg/m³
PM10
49.29ppb
O3
0.47ppb
SO2
14.46ppb
NO2
0.29ppm
CO
AQI 49
Good
9.47μg/m³
PM2.5
38.53μg/m³
PM10
49.15ppb
O3
0.47ppb
SO2
14.48ppb
NO2
0.29ppm
CO
AQI 44
Good
8.00μg/m³
PM2.5
36.63μg/m³
PM10
47.16ppb
O3
0.47ppb
SO2
11.23ppb
NO2
0.30ppm
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 Eldersburg, Maryland is updated every hour.
The worst air quality in Eldersburg, Maryland in the last 24 hours was observed at 10:00:00 on 2026-04-23.
In the last 24 hrs, the best air quality in Eldersburg, Maryland was observed at 02:00:00 on 2026-04-24.
The current air quality in Eldersburg, Maryland is 52, categorized as Moderate based on real-time data.
The most common pollutant in Eldersburg, Maryland is PM2.5.
If the air quality in Eldersburg, Maryland is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Eldersburg, Maryland is 9.747 μg/m3.
The current PM10 concentration at Eldersburg, Maryland is 43.422 μg/m3.
The current carbon monoxide (CO) concentration at Eldersburg, Maryland is 0.293 ppm.
The current sulfur dioxide (SO2) concentration at Eldersburg, Maryland is 2.647 ppb.
The current ozone (O3) concentration at Eldersburg, Maryland is 24.538 ppm.
The current nitrogen dioxide (NO2) concentration at Eldersburg, Maryland is 13.735 ppb.
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