Stay updated with real-time air quality in Greenbelt, 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
Greenbelt, Maryland
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.44 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.54 μg/m³
0
55
155
255
425
605+
28.97 ppb
0
55
71
86
201
201+
0.26 ppb
0
36
76
186
605
1005+
5.91 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Greenbelt, Maryland
Greenbelt, Maryland
Scroll To Air Quality MapLoading...
AQI 33
Good
6.41μg/m³
PM2.5
28.76μg/m³
PM10
28.25ppb
O3
0.34ppb
SO2
9.54ppb
NO2
0.24ppm
CO
AQI 38
Good
7.08μg/m³
PM2.5
31.74μg/m³
PM10
28.20ppb
O3
0.43ppb
SO2
12.07ppb
NO2
0.32ppm
CO
AQI 33
Good
5.83μg/m³
PM2.5
25.44μg/m³
PM10
29.70ppb
O3
0.24ppb
SO2
7.05ppb
NO2
0.14ppm
CO
AQI 33
Good
6.41μg/m³
PM2.5
28.76μg/m³
PM10
28.25ppb
O3
0.34ppb
SO2
9.54ppb
NO2
0.24ppm
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
7.34μg/m³
PM2.5
32.80μg/m³
PM10
29.48ppb
O3
0.46ppb
SO2
11.72ppb
NO2
0.34ppm
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 Greenbelt, Maryland is updated every hour for accuracy.
In the past 24 hours, the air quality in Greenbelt, Maryland was at its worst at 10:00:00 on 2026-06-07.
In the last 24 hours, the best air quality in Greenbelt, Maryland was observed at 12:00:00 on 2026-06-07.
As of now, the AQI in Greenbelt, Maryland is 33, indicating Good conditions.
Greenbelt, Maryland air has the highest levels of PM2.5.
Poor air quality in Greenbelt, Maryland means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Greenbelt, Maryland are currently 5.957 μg/m3.
The PM10 concentration in Greenbelt, Maryland is 26.422 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Greenbelt, Maryland is 0.182 ppm.
Currently, Greenbelt, Maryland has a sulfur dioxide (SO2) concentration of 0.273 ppb.
The current ozone (O3) level in Greenbelt, Maryland at the moment is 28.538 ppm.
Nitrogen dioxide (NO2) level in Greenbelt, Maryland at the moment is 8.212 ppb.
All Rights Reserved © Ambee Inc. 2025