Mem Martins, Sintra Air Pollution: Real-time Air Quality Index (AQI)

Mem Martins, Sintra
Entrecampos, Lisboa
Laranjeiro, Almada
Olivais, Lisboa
Lourinha, Lourinha
Fernando Po, Palmela
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Mem Martins, Sintra AQI: Mem Martins, Sintra Real-time Air Quality Index (AQI).
35
Good
Updated on Saturday 0:00
Primary pollutant: o3
currentpast 2 daysminmax
PM2.5 AQI
30Mem Martins, Sintra, Portugal PM25 (fine particulate matter) measured by : • Portugal -Agencia Portuguesa do Ambiente - Qualidade do Ar • European Environment Agency. Values are converted to the US EPA AQI standard.3059
PM10 AQI
23Mem Martins, Sintra, Portugal PM10 (respirable particulate matter) measured by : • Portugal -Agencia Portuguesa do Ambiente - Qualidade do Ar • European Environment Agency. Values are converted to the US EPA AQI standard.2038
O3 AQI
35Mem Martins, Sintra, Portugal O3 (ozone) measured by : • Portugal -Agencia Portuguesa do Ambiente - Qualidade do Ar • European Environment Agency. Values are converted to the US EPA AQI standard.3055
NO2 AQI
2Mem Martins, Sintra, Portugal NO2 (nitrogen dioxide) measured by : • Portugal -Agencia Portuguesa do Ambiente - Qualidade do Ar • European Environment Agency. Values are converted to the US EPA AQI standard.19
SO2 AQI
1Mem Martins, Sintra, Portugal SO2 (sulfur dioxide) measured by : • Portugal -Agencia Portuguesa do Ambiente - Qualidade do Ar • European Environment Agency. Values are converted to the US EPA AQI standard.11
Temp.
18Mem Martins, Sintra, Portugal t (temp.) measured by Citizen Weather Observer Program (CWOP/APRS).1728
Pressure
1006Mem Martins, Sintra, Portugal p (pressure:) measured by Citizen Weather Observer Program (CWOP/APRS).10051007
Humidity
55Mem Martins, Sintra, Portugal h (humidity) measured by Citizen Weather Observer Program (CWOP/APRS).4160
Wind
1Mem Martins, Sintra, Portugal w (wind) measured by Citizen Weather Observer Program (CWOP/APRS).05
MarkerMarkerMarkerMarker
map © OpenStreetMap contributors

Air Quality Forecast
SAT 9
21°C
18°C
SUN 10
23°C
19°C
MON 11
23°C
20°C
TUE 12
23°C
20°C
PM2.5
O3
Saturday 9Sunday 10Monday 11Tuesday 12
hour
036912151821036912151821036912151821036912151821036912
Wind Speed (m/s)
5443467744222666331357865213466657778





































Temp.
19°19°18°20°21°21°20°19°19°19°19°22°23°22°21°19°21°20°20°21°23°23°22°21°21°23°22°22°22°22°22°20°20°19°19°20°20°
relative humidity
90899179778286958886816666728092717668706666677167536065677176807792938784
barometric pressure
1017101710181019101910181017101810181017101710181018101810171018101710151016101610161014101310141013101210121013101310121012101310131012101210141014
total precipitation
0.10.1
UVI:
9


6:46 ~ 20:42
UVI:
9


6:47 ~ 20:41
UVI:
7


6:47 ~ 20:40
UVI:
8


6:48 ~ 20:39
UVI:
9


6:49 ~ 20:37
Forecast plotted using timezone +01:00
Latest forecast updates:
Wind: 9 hours ago [Aug 8, 2025 5:23 PM]
fine particulate matter: a day ago [Aug 8, 2025 3:01 AM]
ozone: a day ago [Aug 8, 2025 3:03 AM]
click to view the detailed forecast

Air Quality Data provided by: Portugal -Agencia Portuguesa do Ambiente - Qualidade do Ar (qualar.apambiente.pt) and the European Environment Agency (eea.europa.eu)

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About the Air Quality and Pollution Measurement:

About the Air Quality Levels

AQIAir Pollution LevelHealth ImplicationsCautionary Statement (for PM2.5)
0 - 50GoodAir quality is considered satisfactory, and air pollution poses little or no riskNone
51 -100ModerateAir quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
101-150Unhealthy for Sensitive GroupsMembers of sensitive groups may experience health effects. The general public is not likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
151-200UnhealthyEveryone may begin to experience health effects; members of sensitive groups may experience more serious health effectsActive children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion
201-300Very UnhealthyHealth warnings of emergency conditions. The entire population is more likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.
300+HazardousHealth alert: everyone may experience more serious health effectsEveryone should avoid all outdoor exertion

To know more about Air Quality and Pollution, check the wikipedia Air Quality topic or the airnow guide to Air Quality and Your Health.

For very useful health advices of Beijing Doctor Richard Saint Cyr MD, check www.myhealthbeijing.com blog.


Usage Notice: All the Air Quality data are unvalidated at the time of publication, and due to quality assurance these data may be amended, without notice, at any time. The World Air Quality Index project has exercised all reasonable skill and care in compiling the contents of this information and under no circumstances will the World Air Quality Index project team or its agents be liable in contract, tort or otherwise for any loss, injury or damage arising directly or indirectly from the supply of this data.



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