Mem Martins, Sintra, Portugal Air Quality

Monitoring Station · Algueirão, Portugal
46
Good
Air quality is satisfactory. Enjoy outdoor activities.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
45 1pm
45
45
45 4pm
45
45
45 7pm
45
45
25 10pm
25
25
25 1am
25
25
— 4am
—
—
— 7am
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— 10am
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CAMS model adj -9
54
54
54
54
54
54
54
54
54
34
34
34
34
34
34

Air Quality Forecast (24h)

PM2.511.0 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

74
QSintra_Sensor1
3.1 km PM2.5: 23.2 µg/m³
64
Aldeia de Juzo
10.8 km PM2.5: 18.3 µg/m³
22
Entrecampos, Lisboa, Portugal
17.7 km PM2.5: 5.3 µg/m³
37
Entrecampos, Lisboa, Portugal
17.7 km PM2.5: 8.9 µg/m³
34
Olivais, Lisboa, Portugal
20.8 km PM2.5: 8.2 µg/m³
24
Laranjeiro, Almada, Portugal
21.3 km PM2.5: 5.8 µg/m³

Nearby Cities

66 Algueirão 64 Rio de Mouro 67 Sintra 61 Cacém 57 Massamá 54 Belas 66 Alcabideche 50 Olival 51 Queluz

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-09-05T16:39 UTC.