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

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.05 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.97 μg/m³
0
55
155
255
425
605+
32.83 ppb
0
55
71
86
201
201+
0.41 ppb
0
36
76
186
605
1005+
6.31 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Adelphi, Maryland
Adelphi, Maryland
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AQI 38
Good
7.38μg/m³
PM2.5
33.00μg/m³
PM10
34.10ppb
O3
0.47ppb
SO2
8.57ppb
NO2
0.35ppm
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
7.29μg/m³
PM2.5
32.53μg/m³
PM10
34.80ppb
O3
0.46ppb
SO2
7.03ppb
NO2
0.34ppm
CO
AQI 38
Good
7.10μg/m³
PM2.5
31.61μg/m³
PM10
32.75ppb
O3
0.42ppb
SO2
8.64ppb
NO2
0.31ppm
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
7.28μg/m³
PM2.5
32.50μg/m³
PM10
34.90ppb
O3
0.46ppb
SO2
6.92ppb
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 Adelphi, Maryland is updated every hour for accuracy.
In the past 24 hours, the air quality in Adelphi, Maryland was at its worst at 10:00:00 on 2026-06-07.
In the last 24 hours, the best air quality in Adelphi, Maryland was observed at 04:00:00 on 2026-06-08.
As of now, the AQI in Adelphi, Maryland is 38, indicating Good conditions.
Adelphi, Maryland air has the highest levels of PM2.5.
Poor air quality in Adelphi, Maryland means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Adelphi, Maryland are currently 7.208 μg/m3.
The PM10 concentration in Adelphi, Maryland is 32.16 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Adelphi, Maryland is 0.331 ppm.
Currently, Adelphi, Maryland has a sulfur dioxide (SO2) concentration of 0.443 ppb.
The current ozone (O3) level in Adelphi, Maryland at the moment is 32.89 ppm.
Nitrogen dioxide (NO2) level in Adelphi, Maryland at the moment is 8.849 ppb.
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