Worst air pollution Vilhena, today and tomorrow
Today (9 August): Air quality in Vilhena is fair. AQI, PM2.5, and O3 are fair; PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 PM (PM2.5: 39.1/100).
Tomorrow (10 August 2026): Air quality in Vilhena is fair. All pollutants stay as today. Pollution peaks around 10:00 AM (PM2.5: 37.1/100). Airmine updates local air quality forecasts four times daily.
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Vilhena's air quality faces severe seasonal challenges as a major Rondônia agricultural frontier city at the Bolivia border, with dry season burning from surrounding soybean and cattle deforestation generating intense PM2.5 episodes between June and October. Vehicle emissions from the BR-364 contribute year-round, while the flat southern Rondônia plateau's calm dry season conditions allow fire smoke to accumulate extensively throughout the region.
Today - 9 August | Pollution peaks at 22:00
AQI:
Fair
39.1/100
PM2.5 (fine particles):
Fair
39.1/100
PM10 (coarse particles):
Good
18.2/100
NO2 (nitrogen dioxide):
Good
0.6/100
O3 (ozone):
Fair
21.8/100
SO2 (sulfur dioxide):
Good
2.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.6/100
PM1 (ultrafine particles):
Good
11.5/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 10:00
AQI:
Fair
37.1/100
PM2.5 (fine particles):
Fair
37.1/100
PM10 (coarse particles):
Good
17.3/100
NO2 (nitrogen dioxide):
Good
0.6/100
O3 (ozone):
Fair
20.4/100
SO2 (sulfur dioxide):
Good
2.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.6/100
PM1 (ultrafine particles):
Good
12.2/100
Pollen forecast in Vilhena
View pollen forecastFrequently Asked Questions
Is air quality bad in Vilhena right now?
On 9 August 2026, overall air quality in Vilhena is fair. AQI is the main air quality indicator at 39.1/100. Pollution peaks around 10:00 PM (PM2.5: 39.1/100).
Will air quality be worse tomorrow in Vilhena?
On 10 August 2026, air quality conditions in Vilhena will be similar to today, with AQI forecast at fair at 37.1/100. Pollution peaks around 10:00 AM (PM2.5: 37.1/100).
When is air pollution at its worst in Vilhena?
Reduced air quality in Vilhena is most likely when native cerrado trees and soybean farmland pollen peaks, alongside periods of dry season burning from surrounding soybean and cattle deforestation; conditions generally improve once the season shifts and rainfall or stronger winds return.
Are air quality levels in Vilhena 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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