Mem Martins, Sintra, Portugal Air Quality

Monitoring Station · Algueirão, Portugal
88
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
42 12am
42
42
42 3am
42
42
42 6am
42
42
42 9am
35
35
42 12pm
62
42
— 3pm
—
—
— 6pm
—
—
— 9pm
—
—
CAMS model adj +8
34
34
34
34
34
34
34
34
34
34
27
27
34
54
34

Air Quality Forecast (24h)

PM2.529.7 µg/m³ ×2.0 WHO
Moderate
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Nearby Monitoring Stations

31
Mem Martins, Sintra, Portugal
0.0 km PM2.5: 7.4 µg/m³
5
QSintra_Sensor1
3.1 km PM2.5: 1.3 µg/m³
14
Aldeia de Juzo
10.8 km PM2.5: 3.3 µg/m³
21
Entrecampos, Lisboa, Portugal
17.7 km PM2.5: 5.0 µg/m³
21
Entrecampos, Lisboa, Portugal
17.7 km PM2.5: 5.0 µg/m³
21
Entrecampos, Lisboa, Portugal
17.7 km PM2.5: 5.0 µg/m³
25
Olivais, Lisboa, Portugal
20.8 km PM2.5: 6.0 µg/m³
6
Olivais, Lisboa, Portugal
20.8 km PM2.5: 1.4 µg/m³

Nearby Cities

2 Algueirão 2 Rio de Mouro 2 Sintra 2 Cacém 2 Massamá 2 Belas 2 Alcabideche 2 Olival 2 Queluz

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T03:46 UTC.