Worst air pollution Cachoeiro de Itapemirim, today and tomorrow

Today (20 September): Air quality in Cachoeiro de Itapemirim is moderate. AQI and PM2.5 are moderate; PM10 and PM1 are fair; NO2, O3, SO2, CO, and HCHO are good. Pollution peaks around 9:00 AM (PM2.5: 40.8/100).
Tomorrow (21 September 2026): Air quality in Cachoeiro de Itapemirim is fair. AQI improves to fair; PM2.5 decreases to fair; all other pollutants stay as today. Pollution peaks around 7:00 AM (PM2.5: 37.4/100). Airmine updates local air quality forecasts four times daily.

Get the full experience in the Airmine app.

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

Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.

Cachoeiro de Itapemirim's air quality reflects its position in the Itapemirim river valley in southern Espírito Santo, with vehicle emissions from the BR-482 and the surrounding marble and granite quarrying industry — making this Brazil's natural stone capital — contributing elevated PM10 from stone cutting and processing dust operations. The valley's topographic enclosure between the Serra do Caparaó foothills creates concentration of quarrying dust and vehicle emissions under calm conditions throughout the year.

Today - 20 September | Pollution peaks at 09:00

AQI:

Moderate

40.8/100

PM2.5 (fine particles):

Moderate

40.8/100

PM10 (coarse particles):

Fair

37.9/100

NO2 (nitrogen dioxide):

Good

0.1/100

O3 (ozone):

Good

9.6/100

SO2 (sulfur dioxide):

Good

0.3/100

CO (carbon monoxide):

Good

0.3/100

HCHO (formaldehyde):

Good

0.5/100

PM1 (ultrafine particles):

Fair

22.5/100

Levels show the poorest local air quality during the day

Tomorrow - 21 September | Pollution peaks at 07:00

AQI:

Fair

37.4/100

PM2.5 (fine particles):

Fair

37.4/100

PM10 (coarse particles):

Fair

31.1/100

NO2 (nitrogen dioxide):

Good

0.1/100

O3 (ozone):

Good

9.5/100

SO2 (sulfur dioxide):

Good

0.3/100

CO (carbon monoxide):

Good

0.3/100

HCHO (formaldehyde):

Good

0.5/100

PM1 (ultrafine particles):

Fair

23.2/100

Pollen forecast in Cachoeiro de Itapemirim

View pollen forecast

Frequently Asked Questions

Is air quality bad in Cachoeiro de Itapemirim right now?

On 20 September 2026, overall air quality in Cachoeiro de Itapemirim is moderate. AQI is the main air quality indicator at 40.8/100. Pollution peaks around 9:00 AM (PM2.5: 40.8/100).

Will air quality be worse tomorrow in Cachoeiro de Itapemirim?

On 21 September 2026, air quality conditions in Cachoeiro de Itapemirim will be better than today, with AQI forecast at fair at 37.4/100. Pollution peaks around 7:00 AM (PM2.5: 37.4/100).

When is air pollution at its worst in Cachoeiro de Itapemirim?

You're most likely to notice worse air in Cachoeiro de Itapemirim when eucalyptus and the Itapemirim River corridor vegetation pollen peaks, or due to vehicle emissions from the BR-482 and the surrounding marble and granite quarrying industry — making this; the rest of the calendar year is generally more forgiving for air quality.

Are air quality levels in Cachoeiro de Itapemirim 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.

Want to see air quality forecasts for other cities in Brazil?

Check air quality in other popular cities:

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.

Get the full experience in the Airmine app.