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
6.58 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.77 μg/m³
0
55
155
255
425
605+
15.77 ppb
0
55
71
86
201
201+
0.17 ppb
0
36
76
186
605
1005+
6.05 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Adelphi, Maryland
Adelphi, Maryland
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AQI 38
Good
7.00μg/m³
PM2.5
33.55μg/m³
PM10
20.04ppb
O3
0.23ppb
SO2
7.52ppb
NO2
0.24ppm
CO
AQI 38
Good
6.64μg/m³
PM2.5
30.87μg/m³
PM10
23.85ppb
O3
0.21ppb
SO2
6.91ppb
NO2
0.20ppm
CO
AQI 38
Good
6.89μg/m³
PM2.5
33.94μg/m³
PM10
15.12ppb
O3
0.23ppb
SO2
8.01ppb
NO2
0.25ppm
CO
AQI 38
Good
6.57μg/m³
PM2.5
31.12μg/m³
PM10
20.64ppb
O3
0.21ppb
SO2
7.04ppb
NO2
0.21ppm
CO
AQI 38
Good
7.02μg/m³
PM2.5
33.26μg/m³
PM10
22.63ppb
O3
0.23ppb
SO2
6.83ppb
NO2
0.28ppm
CO
AQI 38
Good
6.89μg/m³
PM2.5
33.96μg/m³
PM10
14.85ppb
O3
0.23ppb
SO2
8.02ppb
NO2
0.25ppm
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 03:00:00 on 2025-10-22.
In the last 24 hours, the best air quality in Adelphi, Maryland was observed at 07:00:00 on 2025-10-21.
As of now, the AQI in Adelphi, Maryland is 33, 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 5.707 μg/m3.
The PM10 concentration in Adelphi, Maryland is 25.155 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Adelphi, Maryland is 0.22 ppm.
Currently, Adelphi, Maryland has a sulfur dioxide (SO2) concentration of 0.183 ppb.
The current ozone (O3) level in Adelphi, Maryland at the moment is 17.976 ppm.
Nitrogen dioxide (NO2) level in Adelphi, Maryland at the moment is 8.248 ppb.
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