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Towson (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

Heavy sleet
1°C
Heavy sleet
Humidity
99.6%
Wind
5 m/s
Pressure
1010.3 hPa
Direction
20°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
-1° / 2°
Precip.
11.5mm
Max wind
9.5 m/s

Hourly Forecast

22.02
Now
Weather
1.3
5
22.02
22:00
Weather
1.1
5
22.02
23:00
Weather
1.3
5
23.02
00:00
Weather
1.4
6
23.02
01:00
Weather
1.2
6
23.02
02:00
Weather
1
6
23.02
03:00
Weather
-0°
0.8
6
23.02
04:00
Weather
-1°
0.6
6
23.02
05:00
Weather
-1°
0.4
6
23.02
06:00
Weather
-0°
0.5
6
23.02
07:00
Weather
-0°
0.7
6
23.02
08:00
Weather
0.6
7
23.02
09:00
Weather
-0°
0.4
7
23.02
10:00
Weather
-0°
0.2
7
23.02
11:00
Weather
-0°
7
23.02
12:00
Weather
-0°
7
23.02
13:00
Weather
7
23.02
14:00
Weather
7
23.02
15:00
Weather
9
23.02
16:00
Weather
9
23.02
17:00
Weather
10
23.02
18:00
Weather
9
23.02
19:00
Weather
9
23.02
20:00
Weather
8

Temperature

2°C
-1°C
21:00
1°C
22:00
1°C
23:00
1°C
00:00
1°C
01:00
0°C
02:00
0°C
03:00
-0°C
04:00
-1°C
05:00
-1°C
06:00
-0°C
07:00
-0°C
08:00
0°C
09:00
-0°C
10:00
-0°C
11:00
-0°C
12:00
-0°C
13:00
0°C
14:00
1°C
15:00
1°C
16:00
2°C
17:00
2°C
18:00
2°C
19:00
2°C
20:00
2°C
21:00 08:00 20:00

Precipitation

1.4mm
0mm
21:00
1.3mm
22:00
1.1mm
23:00
1.3mm
00:00
1.4mm
01:00
1.2mm
02:00
1mm
03:00
0.8mm
04:00
0.6mm
05:00
0.4mm
06:00
0.5mm
07:00
0.7mm
08:00
0.6mm
09:00
0.4mm
10:00
0.2mm
21:00 08:00 20:00

Wind

9.5m/s
0m/s
21:00
5.1 m/s
22:00
5.4 m/s
23:00
5.3 m/s
00:00
5.8 m/s
01:00
5.8 m/s
02:00
5.7 m/s
03:00
5.8 m/s
04:00
5.7 m/s
05:00
6.2 m/s
06:00
5.9 m/s
07:00
5.8 m/s
08:00
6.5 m/s
09:00
6.6 m/s
10:00
7 m/s
11:00
7.4 m/s
12:00
7 m/s
13:00
7.3 m/s
14:00
7.3 m/s
15:00
9 m/s
16:00
9.2 m/s
17:00
9.5 m/s
18:00
8.8 m/s
19:00
9.2 m/s
20:00
7.9 m/s
21:00 08:00 20:00

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
94.3 km
84
28%

Measurement time: 2026-02-22 20:00

Calculated from PM2.5/PM10

O3
81.9 km
71.64 µg/m3
44.8%

Measurement time: 2026-02-22 21:59

source: OpenWeatherMap

PM2.5
94.3 km
28 µg/m3
33.3%

Measurement time: 2026-02-22 20:00

source: Aqicn

NO2
99.2 km
22.47 µg/m3
11.2%

Measurement time: 2026-02-22 21:54

source: OpenWeatherMap

PM10
99.2 km
14.34 µg/m3
10.2%

Measurement time: 2026-02-22 21:54

source: OpenWeatherMap

CO
99.2 km
0.34064 mg/m3
2.4%

Measurement time: 2026-02-22 21:54

source: OpenWeatherMap

SO2
94.3 km
2.2 µg/m3
0.6%

Measurement time: 2026-02-22 20:00

source: Aqicn

About Air Quality in Towson

Air quality in Towson 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 Towson

  • 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 Towson?

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 Towson

If you're planning outdoor activities in Towson, 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.