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)
33
Good
Waldorf, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.00 μg/m³
0
55
155
255
425
605+
24.92 ppb
0
55
71
86
201
201+
0.64 ppb
0
36
76
186
605
1005+
11.03 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Waldorf, Maryland
Waldorf, Maryland
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AQI 38
Good
7.45μg/m³
PM2.5
32.03μg/m³
PM10
12.28ppb
O3
0.60ppb
SO2
14.11ppb
NO2
0.35ppm
CO
AQI 38
Good
7.44μg/m³
PM2.5
26.32μg/m³
PM10
11.86ppb
O3
0.52ppb
SO2
14.73ppb
NO2
0.35ppm
CO
AQI 38
Good
7.44μg/m³
PM2.5
30.88μg/m³
PM10
12.15ppb
O3
0.63ppb
SO2
14.26ppb
NO2
0.36ppm
CO
AQI 38
Good
7.39μg/m³
PM2.5
28.41μg/m³
PM10
13.72ppb
O3
0.52ppb
SO2
10.37ppb
NO2
0.35ppm
CO
AQI 38
Good
7.43μg/m³
PM2.5
30.99μg/m³
PM10
13.29ppb
O3
0.65ppb
SO2
14.44ppb
NO2
0.36ppm
CO
AQI 27
Good
4.94μg/m³
PM2.5
19.43μg/m³
PM10
21.49ppb
O3
0.68ppb
SO2
14.27ppb
NO2
0.38ppm
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 2026-07-13.
In the last 24 hours, the best air quality in Waldorf, Maryland was observed at 11:00:00 on 2026-07-13.
As of now, the AQI in Waldorf, Maryland is 33, 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 6.245 μg/m3.
The PM10 concentration in Waldorf, Maryland is 27 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Waldorf, Maryland is 0.277 ppm.
Currently, Waldorf, Maryland has a sulfur dioxide (SO2) concentration of 0.636 ppb.
The current ozone (O3) level in Waldorf, Maryland at the moment is 24.917 ppm.
Nitrogen dioxide (NO2) level in Waldorf, Maryland at the moment is 11.031 ppb.
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