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Adelphi (Maryland) (US)

Air Quality Trend (last 7 days)

Good (0-50)
Moderate (51-100)
Unhealthy for Sensitive Groups (101-150)
Unhealthy (151-200)
Very Unhealthy (201-300)
Hazardous (300+)

Weather - 48h MET Norway

Fair
4°C
Fair
Humidity
62.8%
Wind
5 m/s
Pressure
1027.1 hPa
Direction
91°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
4° / 16°
Precip.
5.2mm
Max wind
7 m/s

Hourly Forecast

15.03
Now
Weather
15.03
13:00
Weather
15.03
14:00
Weather
15.03
15:00
Weather
10°
5
15.03
16:00
Weather
11°
6
15.03
17:00
Weather
12°
6
15.03
18:00
Weather
13°
6
15.03
19:00
Weather
14°
6
15.03
20:00
Weather
14°
6
15.03
21:00
Weather
14°
6
15.03
22:00
Weather
14°
0.6
6
15.03
23:00
Weather
13°
6
16.03
00:00
Weather
13°
6
16.03
01:00
Weather
13°
0.1
6
16.03
02:00
Weather
13°
1.3
6
16.03
03:00
Weather
13°
0.5
6
16.03
04:00
Weather
13°
1.5
6
16.03
05:00
Weather
13°
0.3
7
16.03
06:00
Weather
13°
0.2
7
16.03
07:00
Weather
13°
6
16.03
08:00
Weather
14°
0.7
16.03
09:00
Weather
15°
6
16.03
10:00
Weather
16°
6
16.03
11:00
Weather
16°
7

Temperature

16°C
4°C
12:00
4°C
13:00
6°C
14:00
8°C
15:00
10°C
16:00
11°C
17:00
12°C
18:00
13°C
19:00
14°C
20:00
14°C
21:00
14°C
22:00
14°C
23:00
13°C
00:00
13°C
01:00
13°C
02:00
13°C
03:00
13°C
04:00
13°C
05:00
13°C
06:00
13°C
07:00
13°C
08:00
14°C
09:00
15°C
10:00
16°C
11:00
16°C
12:00 23:00 11:00

Precipitation

1.5mm
0mm
22:00
0.6mm
01:00
0.1mm
02:00
1.3mm
03:00
0.5mm
04:00
1.5mm
05:00
0.3mm
06:00
0.2mm
08:00
0.7mm
12:00 23:00 11:00

Wind

7m/s
0m/s
12:00
4.5 m/s
13:00
4 m/s
14:00
4.7 m/s
15:00
5.4 m/s
16:00
5.5 m/s
17:00
5.6 m/s
18:00
5.8 m/s
19:00
6 m/s
20:00
6.1 m/s
21:00
5.7 m/s
22:00
5.7 m/s
23:00
6.3 m/s
00:00
6.2 m/s
01:00
6.1 m/s
02:00
6.4 m/s
03:00
6.3 m/s
04:00
6.4 m/s
05:00
6.8 m/s
06:00
7 m/s
07:00
5.6 m/s
08:00
5 m/s
09:00
5.6 m/s
10:00
6.1 m/s
11:00
6.8 m/s
12:00 23:00 11:00

Radiation

No sensor within 100 km.

We display the worst measurements from all stations in the area. This approach provides a more cautious assessment of air quality, accounting for local pollution sources.

AQI
85.6 km
69
23%

Measurement time: 2026-03-15 13:00

Calculated from PM2.5/PM10

O3
46.7 km
107.41 µg/m3
67.1%

Measurement time: 2026-03-15 13:32

source: OpenWeatherMap

PM2.5
85.6 km
21 µg/m3
25%

Measurement time: 2026-03-15 13:00

source: Aqicn

PM10
46.7 km
3.82 µg/m3
2.7%

Measurement time: 2026-03-15 13:32

source: OpenWeatherMap

NO2
46.7 km
3.43 µg/m3
1.7%

Measurement time: 2026-03-15 13:32

source: OpenWeatherMap

CO
46.7 km
0.1583 mg/m3
1.1%

Measurement time: 2026-03-15 13:32

source: OpenWeatherMap

SO2
46.7 km
1.29 µg/m3
0.4%

Measurement time: 2026-03-15 13:32

source: OpenWeatherMap

About Air Quality in Adelphi

Air quality in Adelphi is monitored in real-time by sensors and measurement stations. On this page you'll find current data on major air pollutants including particulate matter PM2.5 and PM10, nitrogen dioxide (NO2), ozone (O3), and radiation levels.

Common Pollutants in Adelphi

  • PM2.5 - fine particulate matter up to 2.5 micrometers, particularly harmful to health
  • PM10 - particulate matter up to 10 micrometers from traffic and industry
  • NO2 - nitrogen dioxide mainly emitted by vehicles
  • O3 - tropospheric ozone formed in photochemical reactions

When is Air Quality Best in Adelphi?

Generally, the best air quality occurs:

  • Early morning (5:00-7:00 AM) before rush hour traffic
  • After rainfall which cleanses the atmosphere
  • During strong winds that disperse pollutants
  • In summer months when heating systems are less used

Tips for Runners in Adelphi

If you're planning outdoor activities in Adelphi, always check the current AQI value. When AQI exceeds 100, consider moving your workout indoors or shortening the distance. People with respiratory issues, children, and seniors should be especially cautious during elevated pollution levels. Choose routes away from busy streets and industrial areas.