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
6.96 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
24.38 μg/m³
0
55
155
255
425
605+
19.29 ppb
0
55
71
86
201
201+
0.61 ppb
0
36
76
186
605
1005+
31.91 ppb
0
54
101
361
1250
2050+
0.33 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Waldorf, Maryland
Waldorf, Maryland
Scroll To Air Quality MapLoading...
AQI 44
Good
7.71μg/m³
PM2.5
26.95μg/m³
PM10
17.93ppb
O3
0.58ppb
SO2
30.05ppb
NO2
0.33ppm
CO
AQI 38
Good
7.09μg/m³
PM2.5
29.01μg/m³
PM10
17.93ppb
O3
0.60ppb
SO2
33.04ppb
NO2
0.33ppm
CO
AQI 38
Good
6.63μg/m³
PM2.5
28.90μg/m³
PM10
17.79ppb
O3
0.61ppb
SO2
34.21ppb
NO2
0.33ppm
CO
AQI 38
Good
6.94μg/m³
PM2.5
24.27μg/m³
PM10
16.00ppb
O3
0.56ppb
SO2
29.34ppb
NO2
0.32ppm
CO
AQI 33
Good
6.46μg/m³
PM2.5
25.01μg/m³
PM10
20.44ppb
O3
0.64ppb
SO2
33.74ppb
NO2
0.34ppm
CO
AQI 33
Good
6.18μg/m³
PM2.5
26.52μg/m³
PM10
17.09ppb
O3
0.65ppb
SO2
29.79ppb
NO2
0.39ppm
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 2026-01-22.
In the last 24 hours, the best air quality in Waldorf, Maryland was observed at 07:00:00 on 2026-01-23.
As of now, the AQI in Waldorf, Maryland is 38, 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 6.957 μg/m3.
The PM10 concentration in Waldorf, Maryland is 24.382 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Waldorf, Maryland is 0.333 ppm.
Currently, Waldorf, Maryland has a sulfur dioxide (SO2) concentration of 0.607 ppb.
The current ozone (O3) level in Waldorf, Maryland at the moment is 19.29 ppm.
Nitrogen dioxide (NO2) level in Waldorf, Maryland at the moment is 31.912 ppb.
All Rights Reserved © Ambee Inc. 2025