Real-time air quality index in Dundalk, Maryland today
Stay updated with real-time air quality in Dundalk, 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
Dundalk, Maryland
Last updated: ... (Local time)
Common air pollutants in Dundalk, Maryland
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
3.96 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
16.52 μg/m³
0
55
155
255
425
605+
Ozone (O3)
49.87 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.15 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
2.80 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Dundalk, Maryland
Dundalk, Maryland
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Dundalk, Maryland air quality map: Real-time AQI near you
Air quality in nearby cities
Essex, Maryland
AQI 45
Good
3.53μg/m³
PM2.5
13.99μg/m³
PM10
49.11ppb
O3
0.11ppb
SO2
2.89ppb
NO2
0.17ppm
CO
Rosedale, Maryland
AQI 46
Good
3.82μg/m³
PM2.5
15.67μg/m³
PM10
49.53ppb
O3
0.13ppb
SO2
2.81ppb
NO2
0.17ppm
CO
Baltimore, Maryland
AQI 47
Good
4.80μg/m³
PM2.5
21.11μg/m³
PM10
51.22ppb
O3
0.23ppb
SO2
2.94ppb
NO2
0.16ppm
CO
Riviera Beach, Maryland
AQI 47
Good
4.01μg/m³
PM2.5
17.25μg/m³
PM10
51.37ppb
O3
0.25ppb
SO2
2.68ppb
NO2
0.16ppm
CO
Pasadena, Maryland
AQI 47
Good
4.01μg/m³
PM2.5
17.25μg/m³
PM10
51.37ppb
O3
0.25ppb
SO2
2.68ppb
NO2
0.16ppm
CO
Rossville, Maryland
AQI 46
Good
3.95μg/m³
PM2.5
16.40μg/m³
PM10
49.73ppb
O3
0.14ppb
SO2
2.79ppb
NO2
0.17ppm
CO
How accurate is Maryland, USA air quality data?
Air quality measurements for Maryland, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Frequently asked questions
How frequently is the air quality data for Dundalk, Maryland updated?
Air quality data for Dundalk, Maryland is updated on an hourly basis.
When did Dundalk, Maryland experience the worst air quality in the last 24 hours?
The worst air quality in Dundalk, Maryland was recorded at 10:00:00 on 2026-07-23.
When did Dundalk, Maryland have its best air quality in the last 24 hours?
The best air quality in Dundalk, Maryland was recorded at 01:00:00 on 2026-07-23.
What is the real-time air quality index for Dundalk, Maryland?
The real-time air quality index in Dundalk, Maryland is 46, currently categorized as Good.
Which pollutant is found most often in Dundalk, Maryland?
The most common pollutant in Dundalk, Maryland is O3.
What can I do if the air quality in Dundalk, Maryland is poor?
If the air quality in Dundalk, Maryland is poor, limit outdoor activities and use a mask to safeguard your health.
What are the current PM2.5 levels in Dundalk, Maryland?
The measured PM2.5 levels in Dundalk, Maryland at present are 3.965 μg/m3.
What are the current PM10 levels at Dundalk, Maryland?
The current PM10 levels in Dundalk, Maryland are 16.523 μg/m3.
What are the current carbon monoxide (CO) levels at Dundalk, Maryland?
The current carbon monoxide (CO) level in Dundalk, Maryland is 0.166 ppm.
What are the current sulfur dioxide (SO2) levels at Dundalk, Maryland?
The current sulfur dioxide (SO2) levels in Dundalk, Maryland are 0.151 ppb.
What are the current ozone (O3) levels at Dundalk, Maryland?
The current ozone (O3) levels at Dundalk, Maryland is 49.867 ppm.
What are the current nitrogen dioxide (NO2) levels at Dundalk, Maryland?
The current nitrogen dioxide (NO2) levels at Dundalk, Maryland is 2.799 ppb.
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