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South Bel Air (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
12°C
Fair
Humidity
48.5%
Wind
7 m/s
Pressure
1014.1 hPa
Direction
304°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
4° / 13°
Precip.
0mm
Max wind
7.1 m/s

Hourly Forecast

19.04
Now
Weather
12°
7
19.04
21:00
Weather
13°
7
19.04
22:00
Weather
13°
7
19.04
23:00
Weather
12°
6
20.04
00:00
Weather
10°
20.04
01:00
Weather
20.04
02:00
Weather
20.04
03:00
Weather
20.04
04:00
Weather
20.04
05:00
Weather
20.04
06:00
Weather
20.04
07:00
Weather
20.04
08:00
Weather
20.04
09:00
Weather
20.04
10:00
Weather
20.04
11:00
Weather
20.04
12:00
Weather
20.04
13:00
Weather
5
20.04
14:00
Weather
5
20.04
15:00
Weather
10°
5
20.04
16:00
Weather
10°
5
20.04
17:00
Weather
11°
6
20.04
18:00
Weather
11°
6
20.04
19:00
Weather
11°
6

Temperature

13°C
4°C
20:00
12°C
21:00
13°C
22:00
13°C
23:00
12°C
00:00
10°C
01:00
8°C
02:00
7°C
03:00
6°C
04:00
5°C
05:00
4°C
06:00
4°C
07:00
4°C
08:00
5°C
09:00
7°C
10:00
7°C
11:00
5°C
12:00
7°C
13:00
8°C
14:00
9°C
15:00
10°C
16:00
10°C
17:00
11°C
18:00
11°C
19:00
11°C
20:00 07:00 19:00

Precipitation

0mm
0mm
20:00 07:00 19:00

Wind

7.1m/s
0m/s
20:00
7 m/s
21:00
7.1 m/s
22:00
7.1 m/s
23:00
6 m/s
00:00
4.8 m/s
01:00
3.9 m/s
02:00
3 m/s
03:00
2.3 m/s
04:00
2 m/s
05:00
1.6 m/s
06:00
2.2 m/s
07:00
2.5 m/s
08:00
3.1 m/s
09:00
4.2 m/s
10:00
4.6 m/s
11:00
4.8 m/s
12:00
4.5 m/s
13:00
5.4 m/s
14:00
5.3 m/s
15:00
5.1 m/s
16:00
5.3 m/s
17:00
5.7 m/s
18:00
6.2 m/s
19:00
6.3 m/s
20:00 07:00 19:00

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
6.9 km
8
2.7%

Measurement time: 2026-04-19 21:08

Calculated from PM2.5/PM10

O3
6.9 km
101.91 µg/m3
63.7%

Measurement time: 2026-04-19 21:08

source: OpenWeatherMap

PM2.5
6.9 km
2.09 µg/m3
2.5%

Measurement time: 2026-04-19 21:08

source: OpenWeatherMap

PM10
6.9 km
2.37 µg/m3
1.7%

Measurement time: 2026-04-19 21:08

source: OpenWeatherMap

CO
6.9 km
0.15439 mg/m3
1.1%

Measurement time: 2026-04-19 21:08

source: OpenWeatherMap

NO2
6.9 km
2.21 µg/m3
1.1%

Measurement time: 2026-04-19 21:08

source: OpenWeatherMap

SO2
6.9 km
1.22 µg/m3
0.3%

Measurement time: 2026-04-19 21:08

source: OpenWeatherMap

Info


Region: Maryland
Latitude: 39.53316
Longitude: -76.33746


Solar Energy

Low
207.8 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for South Bel Air

About Air Quality in South Bel Air

Air quality in South Bel Air 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 South Bel Air

  • 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 South Bel Air?

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 South Bel Air

If you're planning outdoor activities in South Bel Air, 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.