Worst air pollution Seropédica, today and tomorrow

Today (9 August): Air quality in Seropédica is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 AM (O3: 20.1/100).
Tomorrow (10 August 2026): Air quality in Seropédica is good. AQI improves to good; O3 decreases to good; all other pollutants stay as today. Pollution peaks around 7:00 PM (O3: 18.9/100). Airmine updates local air quality forecasts four times daily.

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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

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Seropédica's air quality reflects its position in the greater Rio de Janeiro western metropolitan area adjacent to Itaguaí port, with vehicle emissions from the BR-465 and the CDRJ port complex and the surrounding agricultural and university research operations contributing local sources. The flat Baixada Fluminense terrain and the Guanabara Bay basin's enclosed topography influence regional air quality across the entire western metropolitan corridor throughout the year.

Today - 9 August | Pollution peaks at 02:00

AQI:

Fair

20.1/100

PM2.5 (fine particles):

Good

11.4/100

PM10 (coarse particles):

Good

5.2/100

NO2 (nitrogen dioxide):

Good

0.0/100

O3 (ozone):

Fair

20.1/100

SO2 (sulfur dioxide):

Good

0.2/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

0.4/100

PM1 (ultrafine particles):

Good

1.4/100

Levels show the poorest local air quality during the day

Tomorrow - 10 August | Pollution peaks at 19:00

AQI:

Good

18.9/100

PM2.5 (fine particles):

Good

17.3/100

PM10 (coarse particles):

Good

7.9/100

NO2 (nitrogen dioxide):

Good

0.0/100

O3 (ozone):

Good

18.9/100

SO2 (sulfur dioxide):

Good

0.2/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

0.3/100

PM1 (ultrafine particles):

Good

1.8/100

Pollen forecast in Seropédica

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Frequently Asked Questions

Is air quality bad in Seropédica right now?

On 9 August 2026, overall air quality in Seropédica is fair. AQI is the main air quality indicator at 20.1/100. Pollution peaks around 2:00 AM (O3: 20.1/100).

Will air quality be worse tomorrow in Seropédica?

On 10 August 2026, air quality conditions in Seropédica will be better than today, with AQI forecast at good at 18.9/100. Pollution peaks around 7:00 PM (O3: 18.9/100).

When is air pollution at its worst in Seropédica?

In Seropédica, reduced air quality is most noticeable when native Atlantic Forest remnants and eucalyptus pollen peaks, and on days affected by vehicle emissions from the BR-465 and the CDRJ port complex and the surrounding agricultural and university; the clearest air tends to follow a change in wind direction or rainfall here.

Are air quality levels in Seropédica 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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