Stay updated with real-time air quality in White Marsh, 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)
46
Good
White Marsh, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.95 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.75 μg/m³
0
55
155
255
425
605+
49.93 ppb
0
55
71
86
201
201+
0.16 ppb
0
36
76
186
605
1005+
2.90 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
White Marsh, Maryland
White Marsh, Maryland
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AQI 45
Good
4.19μg/m³
PM2.5
16.78μg/m³
PM10
49.05ppb
O3
0.16ppb
SO2
2.48ppb
NO2
0.15ppm
CO
AQI 45
Good
4.01μg/m³
PM2.5
16.26μg/m³
PM10
49.30ppb
O3
0.17ppb
SO2
2.60ppb
NO2
0.15ppm
CO
AQI 45
Good
4.30μg/m³
PM2.5
16.54μg/m³
PM10
48.53ppb
O3
0.14ppb
SO2
2.30ppb
NO2
0.15ppm
CO
AQI 44
Good
4.00μg/m³
PM2.5
14.90μg/m³
PM10
48.41ppb
O3
0.13ppb
SO2
2.41ppb
NO2
0.15ppm
CO
AQI 45
Good
4.30μg/m³
PM2.5
16.54μg/m³
PM10
48.53ppb
O3
0.14ppb
SO2
2.30ppb
NO2
0.15ppm
CO
AQI 45
Good
5.16μg/m³
PM2.5
21.75μg/m³
PM10
49.19ppb
O3
0.19ppb
SO2
2.41ppb
NO2
0.15ppm
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 White Marsh, Maryland is updated every hour for accuracy.
In the past 24 hours, the air quality in White Marsh, Maryland was at its worst at 09:00:00 on 2026-07-23.
In the last 24 hours, the best air quality in White Marsh, Maryland was observed at 01:00:00 on 2026-07-23.
As of now, the AQI in White Marsh, Maryland is 46, indicating Good conditions.
White Marsh, Maryland air has the highest levels of O3.
Poor air quality in White Marsh, Maryland means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in White Marsh, Maryland are currently 3.954 μg/m3.
The PM10 concentration in White Marsh, Maryland is 16.749 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in White Marsh, Maryland is 0.167 ppm.
Currently, White Marsh, Maryland has a sulfur dioxide (SO2) concentration of 0.16 ppb.
The current ozone (O3) level in White Marsh, Maryland at the moment is 49.934 ppm.
Nitrogen dioxide (NO2) level in White Marsh, Maryland at the moment is 2.904 ppb.
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