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Riachos (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

Light rain
13°C
Light rain
Humidity
95.5%
Wind
4 m/s
Pressure
1025.5 hPa
Direction
190°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
10° / 15°
Precip.
0.7mm
Max wind
6.8 m/s

Hourly Forecast

11.01
Now
Weather
13°
0.1
11.01
20:00
Weather
13°
0.3
11.01
21:00
Weather
13°
0.3
11.01
22:00
Weather
12°
11.01
23:00
Weather
12°
12.01
00:00
Weather
12°
12.01
01:00
Weather
12°
12.01
02:00
Weather
11°
12.01
03:00
Weather
11°
12.01
04:00
Weather
11°
12.01
05:00
Weather
11°
12.01
06:00
Weather
10°
12.01
07:00
Weather
10°
12.01
08:00
Weather
10°
12.01
09:00
Weather
11°
12.01
10:00
Weather
12°
12.01
11:00
Weather
13°
5
12.01
12:00
Weather
14°
6
12.01
13:00
Weather
14°
6
12.01
14:00
Weather
15°
7
12.01
15:00
Weather
15°
7
12.01
16:00
Weather
15°
6
12.01
17:00
Weather
14°
5
12.01
18:00
Weather
14°
6

Temperature

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

Precipitation

0.3mm
0mm
19:00
0.1mm
20:00
0.3mm
21:00
0.3mm
19:00 06:00 18:00

Wind

6.8m/s
0m/s
19:00
3.5 m/s
20:00
3.7 m/s
21:00
3.7 m/s
22:00
3.9 m/s
23:00
3.8 m/s
00:00
3.7 m/s
01:00
3.7 m/s
02:00
3.7 m/s
03:00
3.9 m/s
04:00
4 m/s
05:00
3.9 m/s
06:00
3.9 m/s
07:00
3.9 m/s
08:00
3.9 m/s
09:00
4.3 m/s
10:00
4.4 m/s
11:00
5.1 m/s
12:00
5.9 m/s
13:00
6.1 m/s
14:00
6.8 m/s
15:00
6.5 m/s
16:00
5.9 m/s
17:00
5.4 m/s
18:00
5.5 m/s
19:00 06:00 18:00

Radiation

0.028 uSv
26.6 km
3.5%

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
91.3 km
78
26%

Calculated from PM2.5/PM10

PM2.5
91.3 km
25 µg/m3
29.8%

source: Aqicn

O3
91.3 km
29.3 µg/m3
18.3%

source: Aqicn

PM10
91.3 km
12 µg/m3
8.6%

source: Aqicn

NO2
91.3 km
1.4 µg/m3
0.7%

source: Aqicn

SO2
91.3 km
1.1 µg/m3
0.3%

source: Aqicn

Info


Country: Portugal
Region: Santarém
Latitude: 39.44472
Longitude: -8.5142


Solar Energy

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0 W/m²
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About Air Quality in Riachos

Air quality in Riachos 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 Riachos

  • 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 Riachos?

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 Riachos

If you're planning outdoor activities in Riachos, 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.