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)
38
Good
Eldersburg, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.88 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
29.76 μg/m³
0
55
155
255
425
605+
11.66 ppb
0
55
71
86
201
201+
0.55 ppb
0
36
76
186
605
1005+
16.84 ppb
0
54
101
361
1250
2050+
0.41 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Eldersburg, Maryland
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AQI 27
Good
4.97μg/m³
PM2.5
21.00μg/m³
PM10
11.51ppb
O3
0.52ppb
SO2
13.68ppb
NO2
0.42ppm
CO
AQI 33
Good
5.59μg/m³
PM2.5
23.99μg/m³
PM10
8.23ppb
O3
0.54ppb
SO2
23.95ppb
NO2
0.40ppm
CO
AQI 33
Good
5.75μg/m³
PM2.5
24.66μg/m³
PM10
8.48ppb
O3
0.55ppb
SO2
23.05ppb
NO2
0.41ppm
CO
AQI 27
Good
5.48μg/m³
PM2.5
24.04μg/m³
PM10
8.56ppb
O3
0.54ppb
SO2
23.93ppb
NO2
0.41ppm
CO
AQI 27
Good
5.46μg/m³
PM2.5
23.96μg/m³
PM10
8.60ppb
O3
0.54ppb
SO2
24.09ppb
NO2
0.41ppm
CO
AQI 44
Good
8.12μg/m³
PM2.5
36.88μg/m³
PM10
10.87ppb
O3
0.51ppb
SO2
10.98ppb
NO2
0.43ppm
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 12:00:00 on 2026-03-08.
In the last 24 hrs, the best air quality in Eldersburg, Maryland was observed at 08:00:00 on 2026-03-09.
The current air quality in Eldersburg, Maryland is 38, categorized as Good 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 6.877 μg/m3.
The current PM10 concentration at Eldersburg, Maryland is 29.761 μg/m3.
The current carbon monoxide (CO) concentration at Eldersburg, Maryland is 0.408 ppm.
The current sulfur dioxide (SO2) concentration at Eldersburg, Maryland is 0.547 ppb.
The current ozone (O3) concentration at Eldersburg, Maryland is 11.656 ppm.
The current nitrogen dioxide (NO2) concentration at Eldersburg, Maryland is 16.836 ppb.
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