Worst air pollution Barra do Corda, today and tomorrow

Today (9 August): Air quality in Barra do Corda is fair. AQI, PM2.5, and O3 are fair; PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 PM (PM2.5: 23.5/100).
Tomorrow (10 August 2026): Air quality in Barra do Corda is fair. All pollutants stay as today. Pollution peaks around 9:00 PM (PM2.5: 33.1/100). 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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Barra do Corda's air quality reflects the Maranhão semi-arid interior at the Cerrado-Caatinga transition, with vehicle emissions from the BR-226 and surrounding babaçu palm, agricultural, and cattle ranching operations contributing local sources. Dry season burning from surrounding Maranhão agricultural and Cerrado land contributes seasonal PM2.5 variation, while the flat Maranhão interior generally allows reasonable wind dispersal on most days throughout the year.

Today - 9 August | Pollution peaks at 21:00

AQI:

Fair

23.5/100

PM2.5 (fine particles):

Fair

23.5/100

PM10 (coarse particles):

Good

10.7/100

NO2 (nitrogen dioxide):

Good

0.1/100

O3 (ozone):

Fair

20.4/100

SO2 (sulfur dioxide):

Good

2.6/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

0.5/100

PM1 (ultrafine particles):

Good

6.0/100

Levels show the poorest local air quality during the day

Tomorrow - 10 August | Pollution peaks at 21:00

AQI:

Fair

33.1/100

PM2.5 (fine particles):

Fair

33.1/100

PM10 (coarse particles):

Good

14.2/100

NO2 (nitrogen dioxide):

Good

0.2/100

O3 (ozone):

Fair

22.0/100

SO2 (sulfur dioxide):

Good

3.1/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

0.5/100

PM1 (ultrafine particles):

Good

17.9/100

Pollen forecast in Barra do Corda

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Frequently Asked Questions

Is air quality bad in Barra do Corda right now?

On 9 August 2026, overall air quality in Barra do Corda is fair. AQI is the main air quality indicator at 23.5/100. Pollution peaks around 9:00 PM (PM2.5: 23.5/100).

Will air quality be worse tomorrow in Barra do Corda?

On 10 August 2026, air quality conditions in Barra do Corda will be similar to today, with AQI forecast at fair at 33.1/100. Pollution peaks around 9:00 PM (PM2.5: 33.1/100).

When is air pollution at its worst in Barra do Corda?

Air quality dips in Barra do Corda mostly track native cerrado trees and secondary vegetation pollen peaks and periods of vehicle emissions from the BR-226 and surrounding babaçu palm, agricultural, and cattle ranching operations; cooler, breezier weather later in the year tends to bring things back down.

Are air quality levels in Barra do Corda 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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