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)
33
Good
Langley Park, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.78 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.05 μg/m³
0
55
155
255
425
605+
13.43 ppb
0
55
71
86
201
201+
0.30 ppb
0
36
76
186
605
1005+
5.93 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Langley Park, Maryland
Langley Park, Maryland
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AQI 33
Good
5.87μg/m³
PM2.5
27.95μg/m³
PM10
12.26ppb
O3
0.29ppb
SO2
6.34ppb
NO2
0.28ppm
CO
AQI 33
Good
5.68μg/m³
PM2.5
28.47μg/m³
PM10
14.48ppb
O3
0.30ppb
SO2
3.53ppb
NO2
0.28ppm
CO
AQI 33
Good
5.80μg/m³
PM2.5
27.88μg/m³
PM10
14.72ppb
O3
0.30ppb
SO2
6.79ppb
NO2
0.29ppm
CO
AQI 33
Good
5.99μg/m³
PM2.5
27.71μg/m³
PM10
10.55ppb
O3
0.29ppb
SO2
7.82ppb
NO2
0.28ppm
CO
AQI 33
Good
5.67μg/m³
PM2.5
28.51μg/m³
PM10
14.57ppb
O3
0.30ppb
SO2
3.38ppb
NO2
0.28ppm
CO
AQI 33
Good
5.94μg/m³
PM2.5
27.02μg/m³
PM10
9.63ppb
O3
0.30ppb
SO2
10.86ppb
NO2
0.29ppm
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 08:00:00 on 2026-09-07.
In the last 24 hrs, the best air quality in Langley Park, Maryland was observed at 01:00:00 on 2026-09-06.
The current air quality in Langley Park, Maryland is 33, 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 5.779 μg/m3.
The current PM10 concentration at Langley Park, Maryland is 28.046 μg/m3.
The current carbon monoxide (CO) concentration at Langley Park, Maryland is 0.286 ppm.
The current sulfur dioxide (SO2) concentration at Langley Park, Maryland is 0.299 ppb.
The current ozone (O3) concentration at Langley Park, Maryland is 13.43 ppm.
The current nitrogen dioxide (NO2) concentration at Langley Park, Maryland is 5.932 ppb.
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