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Belas (Lisbon) (PT)

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

Cloudy
11°C
Cloudy
Humidity
97.1%
Wind
6 m/s
Pressure
1021.1 hPa
Direction
175°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
11° / 15°
Precip.
14.6mm
Max wind
10 m/s

Hourly Forecast

12.01
Now
Weather
11°
6
12.01
06:00
Weather
12°
7
12.01
07:00
Weather
11°
6
12.01
08:00
Weather
12°
7
12.01
09:00
Weather
13°
7
12.01
10:00
Weather
13°
0.1
7
12.01
11:00
Weather
14°
8
12.01
12:00
Weather
14°
8
12.01
13:00
Weather
15°
8
12.01
14:00
Weather
14°
0.2
8
12.01
15:00
Weather
14°
9
12.01
16:00
Weather
14°
8
12.01
17:00
Weather
14°
8
12.01
18:00
Weather
13°
0.3
9
12.01
19:00
Weather
13°
0.1
9
12.01
20:00
Weather
13°
0.3
9
12.01
21:00
Weather
13°
0.4
9
12.01
22:00
Weather
13°
0.7
9
12.01
23:00
Weather
13°
1.6
9
13.01
00:00
Weather
12°
2.5
10
13.01
01:00
Weather
12°
2.8
10
13.01
02:00
Weather
12°
2
10
13.01
03:00
Weather
12°
1.5
10
13.01
04:00
Weather
12°
2.1
9

Temperature

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

Precipitation

2.8mm
0mm
10:00
0.1mm
14:00
0.2mm
18:00
0.3mm
19:00
0.1mm
20:00
0.3mm
21:00
0.4mm
22:00
0.7mm
23:00
1.6mm
00:00
2.5mm
01:00
2.8mm
02:00
2mm
03:00
1.5mm
04:00
2.1mm
05:00 16:00 04:00

Wind

10m/s
0m/s
05:00
6.3 m/s
06:00
6.5 m/s
07:00
6.4 m/s
08:00
6.5 m/s
09:00
6.6 m/s
10:00
6.8 m/s
11:00
7.8 m/s
12:00
8.1 m/s
13:00
7.9 m/s
14:00
8 m/s
15:00
9 m/s
16:00
8 m/s
17:00
8.1 m/s
18:00
8.5 m/s
19:00
8.8 m/s
20:00
9.1 m/s
21:00
9.3 m/s
22:00
9 m/s
23:00
9.4 m/s
00:00
10 m/s
01:00
9.6 m/s
02:00
9.8 m/s
03:00
9.7 m/s
04:00
9.2 m/s
05:00 16:00 04:00

Radiation

0.053 uSv
11.6 km
6.6%

source: remap_europe

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
10.4 km
144
48%

Calculated from PM2.5/PM10

PM2.5
10.4 km
53 µg/m3
63.1%

source: Aqicn

O3
10.4 km
26 µg/m3
16.3%

source: Aqicn

PM10
10.4 km
20 µg/m3
14.3%

source: Aqicn

NO2
10.4 km
2.8 µg/m3
1.4%

source: Aqicn

SO2
10.4 km
2.1 µg/m3
0.6%

source: Aqicn

About Air Quality in Belas

Air quality in Belas 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 Belas

  • 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 Belas?

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 Belas

If you're planning outdoor activities in Belas, 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.