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)
54
Moderate
Greenbelt, Maryland
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
10.57 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
42.41 μg/m³
0
55
155
255
425
605+
19.64 ppb
0
55
71
86
201
201+
0.13 ppb
0
36
76
186
605
1005+
7.41 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Greenbelt, Maryland
Greenbelt, Maryland
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AQI 54
Moderate
11.09μg/m³
PM2.5
47.69μg/m³
PM10
28.12ppb
O3
0.17ppb
SO2
7.84ppb
NO2
0.32ppm
CO
AQI 56
Moderate
11.82μg/m³
PM2.5
52.10μg/m³
PM10
29.99ppb
O3
0.21ppb
SO2
9.16ppb
NO2
0.40ppm
CO
AQI 52
Moderate
9.87μg/m³
PM2.5
43.60μg/m³
PM10
26.25ppb
O3
0.12ppb
SO2
6.38ppb
NO2
0.23ppm
CO
AQI 54
Moderate
11.09μg/m³
PM2.5
47.69μg/m³
PM10
28.12ppb
O3
0.17ppb
SO2
7.84ppb
NO2
0.32ppm
CO
AQI 54
Moderate
11.45μg/m³
PM2.5
51.20μg/m³
PM10
33.31ppb
O3
0.22ppb
SO2
7.48ppb
NO2
0.38ppm
CO
AQI 56
Moderate
11.90μg/m³
PM2.5
53.21μg/m³
PM10
32.16ppb
O3
0.23ppb
SO2
8.65ppb
NO2
0.41ppm
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 2025-06-05.
In the last 24 hours, the best air quality in Greenbelt, Maryland was observed at 03:00:00 on 2025-06-06.
As of now, the AQI in Greenbelt, Maryland is 54, indicating Moderate 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 10.567 μg/m3.
The PM10 concentration in Greenbelt, Maryland is 42.414 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Greenbelt, Maryland is 0.256 ppm.
Currently, Greenbelt, Maryland has a sulfur dioxide (SO2) concentration of 0.133 ppb.
The current ozone (O3) level in Greenbelt, Maryland at the moment is 19.641 ppm.
Nitrogen dioxide (NO2) level in Greenbelt, Maryland at the moment is 7.409 ppb.
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