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)
66
Moderate
Waldorf, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
17.06 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
68.69 μg/m³
0
55
155
255
425
605+
7.46 ppb
0
55
71
86
201
201+
0.51 ppb
0
36
76
186
605
1005+
16.38 ppb
0
54
101
361
1250
2050+
0.43 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Waldorf, Maryland
Waldorf, Maryland
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AQI 67
Moderate
17.58μg/m³
PM2.5
72.00μg/m³
PM10
5.67ppb
O3
0.51ppb
SO2
16.38ppb
NO2
0.43ppm
CO
AQI 66
Moderate
16.92μg/m³
PM2.5
72.11μg/m³
PM10
8.14ppb
O3
0.49ppb
SO2
16.38ppb
NO2
0.43ppm
CO
AQI 66
Moderate
17.36μg/m³
PM2.5
72.49μg/m³
PM10
5.49ppb
O3
0.49ppb
SO2
16.45ppb
NO2
0.43ppm
CO
AQI 67
Moderate
18.33μg/m³
PM2.5
51.30μg/m³
PM10
6.35ppb
O3
0.56ppb
SO2
16.23ppb
NO2
0.43ppm
CO
AQI 69
Moderate
17.34μg/m³
PM2.5
92.18μg/m³
PM10
5.86ppb
O3
0.47ppb
SO2
16.51ppb
NO2
0.43ppm
CO
AQI 66
Moderate
17.01μg/m³
PM2.5
67.73μg/m³
PM10
7.30ppb
O3
0.43ppb
SO2
16.95ppb
NO2
0.43ppm
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 10:00:00 on 2025-12-06.
In the last 24 hours, the best air quality in Waldorf, Maryland was observed at 08:00:00 on 2025-12-06.
As of now, the AQI in Waldorf, Maryland is 66, indicating Moderate 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 17.064 μg/m3.
The PM10 concentration in Waldorf, Maryland is 68.691 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Waldorf, Maryland is 0.428 ppm.
Currently, Waldorf, Maryland has a sulfur dioxide (SO2) concentration of 0.514 ppb.
The current ozone (O3) level in Waldorf, Maryland at the moment is 7.458 ppm.
Nitrogen dioxide (NO2) level in Waldorf, Maryland at the moment is 16.375 ppb.
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