Worst air pollution Ariquemes, today and tomorrow
Today (20 September): Air quality in Ariquemes is moderate. AQI and PM2.5 are moderate; PM10 and PM1 are fair; NO2, O3, SO2, CO, and HCHO are good. Pollution peaks around 10:00 AM (PM2.5: 42.5/100).
Tomorrow (21 September 2026): Air quality in Ariquemes is fair. AQI improves to fair; PM2.5 decreases to fair; PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 10:00 AM (PM2.5: 34.3/100). 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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Ariquemes' air quality faces severe seasonal challenges as a major Rondônia Amazon frontier city, with dry season burning from surrounding deforestation generating intense PM2.5 episodes between June and October. Vehicle emissions from the BR-364 contribute year-round, while the flat western Amazon basin's calm dry season conditions allow agricultural smoke to accumulate extensively throughout the region.
Today - 20 September | Pollution peaks at 10:00
AQI:
Moderate
42.5/100
PM2.5 (fine particles):
Moderate
42.5/100
PM10 (coarse particles):
Fair
38.6/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
8.6/100
SO2 (sulfur dioxide):
Good
0.3/100
CO (carbon monoxide):
Good
0.3/100
HCHO (formaldehyde):
Good
0.5/100
PM1 (ultrafine particles):
Fair
23.7/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 10:00
AQI:
Fair
34.3/100
PM2.5 (fine particles):
Fair
34.3/100
PM10 (coarse particles):
Fair
27.0/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
9.0/100
SO2 (sulfur dioxide):
Good
0.3/100
CO (carbon monoxide):
Good
0.3/100
HCHO (formaldehyde):
Good
0.6/100
PM1 (ultrafine particles):
Good
19.2/100
Pollen forecast in Ariquemes
View pollen forecastFrequently Asked Questions
Is air quality bad in Ariquemes right now?
On 20 September 2026, overall air quality in Ariquemes is moderate. AQI is the main air quality indicator at 42.5/100. Pollution peaks around 10:00 AM (PM2.5: 42.5/100).
Will air quality be worse tomorrow in Ariquemes?
On 21 September 2026, air quality conditions in Ariquemes will be better than today, with AQI forecast at fair at 34.3/100. Pollution peaks around 10:00 AM (PM2.5: 34.3/100).
When is air pollution at its worst in Ariquemes?
Ariquemes residents notice reduced air quality mainly when pasture grasses and secondary vegetation pollen peaks, and during spells of dry season burning from surrounding deforestation; cooler, breezier weather later in the year tends to bring things back down.
Are air quality levels in Ariquemes 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: 20 September 2026 at 14:33 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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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