Live air quality index in Maryland, USA today
Stay updated with real-time air quality in Maryland, USA 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
Maryland, USA
Last updated: ... (Local time)
Major air pollutants in Maryland, USA
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
6.29 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
27.00 μg/m³
0
55
155
255
425
605+
Ozone (O3)
35.47 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.36 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
10.41 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Maryland, USA
Maryland, USA
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Air quality in cities of Maryland, USA
| No results found | |||||||
| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
Air quality in nearby states
Delaware, USA
AQI 38
Good
7.45μg/m³
PM2.5
30.85μg/m³
PM10
37.70ppb
O3
0.33ppb
SO2
10.60ppb
NO2
0.34ppm
CO
New Jersey, USA
AQI 49
Good
8.75μg/m³
PM2.5
36.48μg/m³
PM10
35.43ppb
O3
0.76ppb
SO2
16.84ppb
NO2
0.39ppm
CO
Pennsylvania, USA
AQI 33
Good
5.70μg/m³
PM2.5
25.34μg/m³
PM10
36.13ppb
O3
0.70ppb
SO2
8.13ppb
NO2
0.28ppm
CO
Virginia, USA
AQI 36
Good
5.80μg/m³
PM2.5
20.40μg/m³
PM10
38.60ppb
O3
0.68ppb
SO2
6.16ppb
NO2
0.17ppm
CO
New York, USA
AQI 44
Good
8.49μg/m³
PM2.5
35.17μg/m³
PM10
35.63ppb
O3
0.40ppb
SO2
10.84ppb
NO2
0.31ppm
CO
West Virginia, USA
AQI 30
Good
3.74μg/m³
PM2.5
15.59μg/m³
PM10
31.55ppb
O3
2.05ppb
SO2
4.07ppb
NO2
0.19ppm
CO
How accurate is Maryland, USA air quality data?
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
Frequently asked questions
How often is air quality information updated for Maryland, USA?
The air quality information for Maryland, USA is updated every hour for accuracy.
What time in the last 24 hours was the air quality in Maryland, USA at its worst?
In the past 24 hours, the air quality in Maryland, USA was at its worst at 05:00:00 on 2026-01-22.
When did Maryland, USA experience the best air quality in the last 24 hours?
In the last 24 hours, the best air quality in Maryland, USA was observed at 05:00:00 on 2026-01-22.
What is the AQI in Maryland, USA right now?
As of now, the AQI in Maryland, USA is 33, indicating Good conditions.
What is the most common type of pollution in Maryland, USA?
Maryland, USA air has the highest levels of PM2.5.
What should I do in case of poor air quality in Maryland, USA?
Poor air quality in Maryland, USA means it's advisable to stay indoors and wear a mask for your protection.
What is the PM2.5 level in Maryland, USA at the moment?
PM2.5 levels in Maryland, USA are currently 6.293 μg/m3.
What is the PM10 level in Maryland, USA at the moment?
The PM10 concentration in Maryland, USA is 26.997 μg/m3 at the moment.
What is the carbon monoxide (CO) level in Maryland, USA at the moment?
The current carbon monoxide (CO) concentration in Maryland, USA is 0.145 ppm.
What is the sulfur dioxide (SO2) level in Maryland, USA at the moment?
Currently, Maryland, USA has a sulfur dioxide (SO2) concentration of 0.362 ppb.
What is the ozone (O3) level in Maryland, USA at the moment?
The current ozone (O3) level in Maryland, USA at the moment is 35.47 ppm.
What is the nitrogen dioxide (NO2) level in Maryland, USA at the moment?
Nitrogen dioxide (NO2) level in Maryland, USA at the moment is 10.412 ppb.
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