Stay updated with real-time air quality in Waldorf, 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
Waldorf, Maryland
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.94 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.19 μg/m³
0
55
155
255
425
605+
40.96 ppb
0
55
71
86
201
201+
0.31 ppb
0
36
76
186
605
1005+
3.41 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Waldorf, Maryland
Waldorf, Maryland
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AQI 44
Good
7.80μg/m³
PM2.5
20.35μg/m³
PM10
5.12ppb
O3
0.36ppb
SO2
13.27ppb
NO2
0.72ppm
CO
AQI 33
Good
6.49μg/m³
PM2.5
13.56μg/m³
PM10
5.55ppb
O3
0.36ppb
SO2
18.11ppb
NO2
0.71ppm
CO
AQI 44
Good
7.61μg/m³
PM2.5
20.39μg/m³
PM10
5.07ppb
O3
0.35ppb
SO2
15.55ppb
NO2
0.73ppm
CO
AQI 38
Good
7.32μg/m³
PM2.5
23.17μg/m³
PM10
6.57ppb
O3
0.37ppb
SO2
9.94ppb
NO2
0.71ppm
CO
AQI 38
Good
6.63μg/m³
PM2.5
24.71μg/m³
PM10
5.77ppb
O3
0.34ppb
SO2
18.11ppb
NO2
0.74ppm
CO
AQI 17
Good
3.06μg/m³
PM2.5
11.34μg/m³
PM10
6.58ppb
O3
0.34ppb
SO2
17.91ppb
NO2
0.80ppm
CO
Air quality and pollutant data for Maryland, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Waldorf, Maryland is updated every hour for accuracy.
In the past 24 hours, the air quality in Waldorf, Maryland was at its worst at 04:00:00 on 2025-10-21.
In the last 24 hours, the best air quality in Waldorf, Maryland was observed at 10:00:00 on 2025-10-21.
As of now, the AQI in Waldorf, Maryland is 27, indicating Good conditions.
Waldorf, Maryland air has the highest levels of PM2.5.
Poor air quality in Waldorf, Maryland means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Waldorf, Maryland are currently 4.642 μg/m3.
The PM10 concentration in Waldorf, Maryland is 17.958 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Waldorf, Maryland is 0.558 ppm.
Currently, Waldorf, Maryland has a sulfur dioxide (SO2) concentration of 0.388 ppb.
The current ozone (O3) level in Waldorf, Maryland at the moment is 15.109 ppm.
Nitrogen dioxide (NO2) level in Waldorf, Maryland at the moment is 13.626 ppb.
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