Worst air pollution Paço do Lumiar, today and tomorrow
Today (9 August): Air quality in Paço do Lumiar is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (O3: 19.0/100).
Tomorrow (10 August 2026): Air quality in Paço do Lumiar is fair. AQI worsens to fair; PM2.5 increases to fair; all other pollutants stay as today. Pollution peaks around 8:00 PM (PM2.5: 27.9/100). Airmine updates local air quality forecasts four times daily.
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Paço do Lumiar's air quality reflects its position on the northern São Luís island coast in Maranhão, with consistent Atlantic trade winds providing reliable maritime ventilation across this rapidly urbanising coastal municipality. Vehicle emissions from the MA-201 and the expanding São Luís metropolitan airport and industrial growth nearby contribute local sources, while the coastal position and consistent northeast trade winds generally maintain moderate readings, and the surrounding São Luís Bay and Baía de São Marcos provide consistent maritime air quality management throughout the year.
Today - 9 August | Pollution peaks at 07:00
AQI:
Good
19.0/100
PM2.5 (fine particles):
Good
16.7/100
PM10 (coarse particles):
Good
7.7/100
NO2 (nitrogen dioxide):
Good
0.3/100
O3 (ozone):
Good
19.0/100
SO2 (sulfur dioxide):
Good
2.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.6/100
PM1 (ultrafine particles):
Good
6.6/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 20:00
AQI:
Fair
27.9/100
PM2.5 (fine particles):
Fair
27.9/100
PM10 (coarse particles):
Good
11.6/100
NO2 (nitrogen dioxide):
Good
0.4/100
O3 (ozone):
Good
19.6/100
SO2 (sulfur dioxide):
Good
3.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.6/100
PM1 (ultrafine particles):
Good
16.5/100
Pollen forecast in Paço do Lumiar
View pollen forecastFrequently Asked Questions
Is air quality bad in Paço do Lumiar right now?
On 9 August 2026, overall air quality in Paço do Lumiar is good. AQI is the main air quality indicator at 19.0/100. Pollution peaks around 7:00 AM (O3: 19.0/100).
Will air quality be worse tomorrow in Paço do Lumiar?
On 10 August 2026, air quality conditions in Paço do Lumiar will be worse than today, with AQI forecast at fair at 27.9/100. Pollution peaks around 8:00 PM (PM2.5: 27.9/100).
When is air pollution at its worst in Paço do Lumiar?
People in Paço do Lumiar tend to notice reduced air quality when restinga coastal scrub and mangrove vegetation pollen peaks, or because of vehicle emissions from the MA-201 and the expanding São Luís metropolitan airport and industrial growth nearby; the rest of the year typically brings clearer, more consistent conditions.
Are air quality levels in Paço do Lumiar based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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