Worst air pollution Paulo Afonso, today and tomorrow
Today (9 August): Air quality in Paulo Afonso is fair. PM10 and O3 are fair; AQI and PM2.5 are medium; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 PM (PM2.5: 40.9/100).
Tomorrow (10 August 2026): Air quality in Paulo Afonso is fair. AQI worsens to fair; PM2.5 increases to fair; PM10 decreases to good; all other pollutants stay as today. Pollution peaks around 1:00 PM (PM2.5: 34.4/100). 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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Paulo Afonso's air quality benefits from its position on the São Francisco River at 280 metres, with the Chesf hydroelectric complex contributing modest industrial sources alongside vehicle emissions from the BR-110. The São Francisco valley's channelling of prevailing winds provides generally reasonable ventilation, while drought conditions and Caatinga burning contribute seasonal PM10 episodes across the semi-arid landscape.
Today - 9 August | Pollution peaks at 21:00
AQI:
Medium
40.9/100
PM2.5 (fine particles):
Medium
40.9/100
PM10 (coarse particles):
Fair
20.7/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Fair
20.3/100
SO2 (sulfur dioxide):
Good
3.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.5/100
PM1 (ultrafine particles):
Good
9.2/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 13:00
AQI:
Fair
34.4/100
PM2.5 (fine particles):
Fair
34.4/100
PM10 (coarse particles):
Good
15.9/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Fair
21.9/100
SO2 (sulfur dioxide):
Good
3.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.5/100
PM1 (ultrafine particles):
Good
10.9/100
Pollen forecast in Paulo Afonso
View pollen forecastFrequently Asked Questions
Is air quality bad in Paulo Afonso right now?
On 9 August 2026, overall air quality in Paulo Afonso is fair. PM10 is the main pollutant at 20.7/100. Pollution peaks around 9:00 PM (PM2.5: 40.9/100).
Will air quality be worse tomorrow in Paulo Afonso?
On 10 August 2026, air quality conditions in Paulo Afonso will be similar to today, with AQI forecast at fair at 34.4/100. Pollution peaks around 1:00 PM (PM2.5: 34.4/100).
When is air pollution at its worst in Paulo Afonso?
People in Paulo Afonso tend to notice reduced air quality when native caatinga scrub and dam reservoir shoreline vegetation pollen peaks, or because of the Chesf hydroelectric complex; outside of those periods, conditions here remain among the more favourable in the region.
Are air quality levels in Paulo Afonso 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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