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)
22
Good
Eldersburg, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.17 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.66 μg/m³
0
55
155
255
425
605+
9.06 ppb
0
55
71
86
201
201+
0.29 ppb
0
36
76
186
605
1005+
17.00 ppb
0
54
101
361
1250
2050+
0.38 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Eldersburg, Maryland
Eldersburg, Maryland
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AQI 27
Good
4.75μg/m³
PM2.5
16.87μg/m³
PM10
17.02ppb
O3
0.22ppb
SO2
11.68ppb
NO2
0.16ppm
CO
AQI 27
Good
5.03μg/m³
PM2.5
18.34μg/m³
PM10
21.55ppb
O3
0.21ppb
SO2
19.33ppb
NO2
0.16ppm
CO
AQI 27
Good
5.42μg/m³
PM2.5
20.40μg/m³
PM10
21.56ppb
O3
0.21ppb
SO2
18.85ppb
NO2
0.16ppm
CO
AQI 27
Good
4.95μg/m³
PM2.5
17.52μg/m³
PM10
22.14ppb
O3
0.21ppb
SO2
20.53ppb
NO2
0.16ppm
CO
AQI 27
Good
4.82μg/m³
PM2.5
16.73μg/m³
PM10
22.29ppb
O3
0.21ppb
SO2
20.82ppb
NO2
0.16ppm
CO
AQI 21
Good
2.35μg/m³
PM2.5
10.22μg/m³
PM10
22.68ppb
O3
0.22ppb
SO2
9.57ppb
NO2
0.16ppm
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 2026-10-05.
In the last 24 hrs, the best air quality in Eldersburg, Maryland was observed at 12:00:00 on 2026-10-05.
The current air quality in Eldersburg, Maryland is 20, categorized as Good based on real-time data.
The most common pollutant in Eldersburg, Maryland is O3.
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 3.402 μg/m3.
The current PM10 concentration at Eldersburg, Maryland is 12.708 μg/m3.
The current carbon monoxide (CO) concentration at Eldersburg, Maryland is 0.16 ppm.
The current sulfur dioxide (SO2) concentration at Eldersburg, Maryland is 0.21 ppb.
The current ozone (O3) concentration at Eldersburg, Maryland is 21.642 ppm.
The current nitrogen dioxide (NO2) concentration at Eldersburg, Maryland is 11.114 ppb.
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