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Alpiarça (Santarém) (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

Clear sky
12°C
Clear sky
Humidity
79.2%
Wind
2 m/s
Pressure
1021.9 hPa
Direction
40°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
11° / 28°
Precip.
0mm
Max wind
3.3 m/s

Hourly Forecast

05.04
Now
Weather
12°
05.04
02:00
Weather
12°
05.04
03:00
Weather
12°
05.04
04:00
Weather
12°
05.04
05:00
Weather
11°
05.04
06:00
Weather
11°
05.04
07:00
Weather
12°
05.04
08:00
Weather
15°
05.04
09:00
Weather
18°
05.04
10:00
Weather
21°
05.04
11:00
Weather
23°
05.04
12:00
Weather
25°
05.04
13:00
Weather
27°
05.04
14:00
Weather
27°
05.04
15:00
Weather
28°
05.04
16:00
Weather
27°
05.04
17:00
Weather
26°
05.04
18:00
Weather
25°
05.04
19:00
Weather
22°
05.04
20:00
Weather
20°
05.04
21:00
Weather
19°
05.04
22:00
Weather
17°
05.04
23:00
Weather
16°
06.04
00:00
Weather
15°

Temperature

28°C
11°C
01:00
12°C
02:00
12°C
03:00
12°C
04:00
12°C
05:00
11°C
06:00
11°C
07:00
12°C
08:00
15°C
09:00
18°C
10:00
21°C
11:00
23°C
12:00
25°C
13:00
27°C
14:00
27°C
15:00
28°C
16:00
27°C
17:00
26°C
18:00
25°C
19:00
22°C
20:00
20°C
21:00
19°C
22:00
17°C
23:00
16°C
00:00
15°C
01:00 12:00 00:00

Precipitation

0mm
0mm
01:00 12:00 00:00

Wind

3.3m/s
0m/s
01:00
2.2 m/s
02:00
2.3 m/s
03:00
2.1 m/s
04:00
2.1 m/s
05:00
2.3 m/s
06:00
2.3 m/s
07:00
2.5 m/s
08:00
2.1 m/s
09:00
2.3 m/s
10:00
2.4 m/s
11:00
1.7 m/s
12:00
1 m/s
13:00
1.4 m/s
14:00
2.2 m/s
15:00
2.9 m/s
16:00
3.3 m/s
17:00
3.2 m/s
18:00
2.2 m/s
19:00
2.4 m/s
20:00
2.7 m/s
21:00
2.5 m/s
22:00
2.1 m/s
23:00
1.6 m/s
00:00
1.6 m/s
01:00 12:00 00:00

Radiation

0.067 uSv
45.9 km
8.3%

Measurement time: 2026-04-04 18:00

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
74.8 km
136
45.3%

Measurement time: 2026-04-05 01:00

Calculated from PM2.5/PM10

O3
94 km
106.22 µg/m3
66.4%

Measurement time: 2026-04-05 01:24

source: OpenWeatherMap

PM2.5
74.8 km
50 µg/m3
59.5%

Measurement time: 2026-04-05 01:00

source: Aqicn

PM10
74.8 km
18 µg/m3
12.9%

Measurement time: 2026-04-05 01:00

source: Aqicn

NO2
74.8 km
9.7 µg/m3
4.9%

Measurement time: 2026-04-05 01:00

source: Aqicn

CO
94 km
0.12189 mg/m3
0.9%

Measurement time: 2026-04-05 01:24

source: OpenWeatherMap

SO2
74.8 km
1.9 µg/m3
0.5%

Measurement time: 2026-04-05 01:00

source: Aqicn

Info


Country: Portugal
Region: Santarém
Latitude: 39.25712
Longitude: -8.58187


Solar Energy

Night
0 W/m²
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About Air Quality in Alpiarça

Air quality in Alpiarça 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 Alpiarça

  • 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 Alpiarça?

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 Alpiarça

If you're planning outdoor activities in Alpiarça, 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.