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
6.14 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.02 μg/m³
0
55
155
255
425
605+
7.38 ppb
0
55
71
86
201
201+
0.31 ppb
0
36
76
186
605
1005+
4.69 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Waldorf, Maryland
Waldorf, Maryland
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AQI 27
Good
5.17μg/m³
PM2.5
22.92μg/m³
PM10
11.29ppb
O3
0.33ppb
SO2
3.42ppb
NO2
0.27ppm
CO
AQI 22
Good
3.79μg/m³
PM2.5
9.23μg/m³
PM10
7.59ppb
O3
0.30ppb
SO2
5.08ppb
NO2
0.27ppm
CO
AQI 33
Good
5.72μg/m³
PM2.5
19.04μg/m³
PM10
7.50ppb
O3
0.32ppb
SO2
6.45ppb
NO2
0.28ppm
CO
AQI 33
Good
6.14μg/m³
PM2.5
25.42μg/m³
PM10
11.92ppb
O3
0.40ppb
SO2
4.42ppb
NO2
0.27ppm
CO
AQI 27
Good
5.11μg/m³
PM2.5
23.16μg/m³
PM10
7.02ppb
O3
0.32ppb
SO2
7.55ppb
NO2
0.28ppm
CO
AQI 16
Good
3.40μg/m³
PM2.5
11.36μg/m³
PM10
12.25ppb
O3
0.30ppb
SO2
10.05ppb
NO2
0.29ppm
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 08:00:00 on 2026-09-07.
In the last 24 hours, the best air quality in Waldorf, Maryland was observed at 01:00:00 on 2026-09-06.
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 6.139 μg/m3.
The PM10 concentration in Waldorf, Maryland is 28.023 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Waldorf, Maryland is 0.272 ppm.
Currently, Waldorf, Maryland has a sulfur dioxide (SO2) concentration of 0.31 ppb.
The current ozone (O3) level in Waldorf, Maryland at the moment is 7.384 ppm.
Nitrogen dioxide (NO2) level in Waldorf, Maryland at the moment is 4.69 ppb.
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