Stay updated with real-time air quality in Langley Park, 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)
38
Good
Langley Park, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.40 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.04 μg/m³
0
55
155
255
425
605+
34.04 ppb
0
55
71
86
201
201+
0.44 ppb
0
36
76
186
605
1005+
6.06 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Langley Park, Maryland
Langley Park, Maryland
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AQI 38
Good
7.21μg/m³
PM2.5
32.16μg/m³
PM10
32.89ppb
O3
0.44ppb
SO2
8.85ppb
NO2
0.33ppm
CO
AQI 38
Good
7.29μg/m³
PM2.5
32.53μg/m³
PM10
34.80ppb
O3
0.46ppb
SO2
7.03ppb
NO2
0.34ppm
CO
AQI 38
Good
7.32μg/m³
PM2.5
32.77μg/m³
PM10
35.50ppb
O3
0.48ppb
SO2
8.58ppb
NO2
0.36ppm
CO
AQI 38
Good
7.19μg/m³
PM2.5
32.05μg/m³
PM10
31.44ppb
O3
0.44ppb
SO2
9.97ppb
NO2
0.33ppm
CO
AQI 38
Good
7.28μg/m³
PM2.5
32.50μg/m³
PM10
34.90ppb
O3
0.46ppb
SO2
6.92ppb
NO2
0.34ppm
CO
AQI 44
Good
7.65μg/m³
PM2.5
34.29μg/m³
PM10
30.51ppb
O3
0.51ppb
SO2
12.29ppb
NO2
0.38ppm
CO
Air quality data and pollutant measurements for Maryland, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Langley Park, Maryland is updated every hour.
The worst air quality in Langley Park, Maryland in the last 24 hours was observed at 10:00:00 on 2026-06-07.
In the last 24 hrs, the best air quality in Langley Park, Maryland was observed at 04:00:00 on 2026-06-08.
The current air quality in Langley Park, Maryland is 38, categorized as Good based on real-time data.
The most common pollutant in Langley Park, Maryland is PM2.5.
If the air quality in Langley Park, Maryland is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Langley Park, Maryland is 7.382 μg/m3.
The current PM10 concentration at Langley Park, Maryland is 33.001 μg/m3.
The current carbon monoxide (CO) concentration at Langley Park, Maryland is 0.354 ppm.
The current sulfur dioxide (SO2) concentration at Langley Park, Maryland is 0.475 ppb.
The current ozone (O3) concentration at Langley Park, Maryland is 34.102 ppm.
The current nitrogen dioxide (NO2) concentration at Langley Park, Maryland is 8.569 ppb.
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