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)
71
Moderate
Waldorf, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
35.14 μg/m³
0
55
155
255
425
605+
60.94 ppb
0
55
71
86
201
201+
0.61 ppb
0
36
76
186
605
1005+
9.76 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Waldorf, Maryland
Waldorf, Maryland
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AQI 64
Moderate
8.29μg/m³
PM2.5
38.71μg/m³
PM10
59.10ppb
O3
0.62ppb
SO2
9.58ppb
NO2
0.16ppm
CO
AQI 71
Moderate
9.52μg/m³
PM2.5
22.00μg/m³
PM10
61.03ppb
O3
0.59ppb
SO2
10.18ppb
NO2
0.16ppm
CO
AQI 64
Moderate
7.67μg/m³
PM2.5
35.97μg/m³
PM10
59.24ppb
O3
0.65ppb
SO2
7.07ppb
NO2
0.16ppm
CO
AQI 64
Moderate
8.01μg/m³
PM2.5
32.34μg/m³
PM10
59.32ppb
O3
0.48ppb
SO2
3.71ppb
NO2
0.16ppm
CO
AQI 67
Moderate
7.74μg/m³
PM2.5
35.71μg/m³
PM10
60.07ppb
O3
0.67ppb
SO2
2.75ppb
NO2
0.16ppm
CO
AQI 74
Moderate
7.37μg/m³
PM2.5
32.62μg/m³
PM10
61.62ppb
O3
0.68ppb
SO2
4.12ppb
NO2
0.16ppm
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 07:00:00 on 2026-04-23.
In the last 24 hours, the best air quality in Waldorf, Maryland was observed at 02:00:00 on 2026-04-23.
As of now, the AQI in Waldorf, Maryland is 71, indicating Moderate conditions.
Waldorf, Maryland air has the highest levels of O3.
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 8.254 μg/m3.
The PM10 concentration in Waldorf, Maryland is 35.144 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Waldorf, Maryland is 0.159 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 60.937 ppm.
Nitrogen dioxide (NO2) level in Waldorf, Maryland at the moment is 9.758 ppb.
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