Worst air pollution Altamira, today and tomorrow
Today (16 July): Air quality in Altamira is fair. AQI, PM2.5, and O3 are fair; PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 AM (PM2.5: 25.5/100).
Tomorrow (17 July 2026): Air quality in Altamira is fair. AQI improves to medium; PM2.5 decreases to medium; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 6:00 PM (PM2.5: 40.3/100). 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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Altamira's air quality faces severe seasonal challenges associated with Belo Monte dam construction and surrounding Amazon deforestation burning, generating intense PM2.5 episodes between June and October. Vehicle emissions from the BR-230 Transamazônica contribute year-round, while the flat Xingu river basin's calm dry season conditions allow smoke to accumulate extensively.
Today - 16 July | Pollution peaks at 01:00
AQI:
Fair
25.5/100
PM2.5 (fine particles):
Fair
25.5/100
PM10 (coarse particles):
Good
11.1/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Fair
22.9/100
SO2 (sulfur dioxide):
Good
3.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.6/100
PM1 (ultrafine particles):
Good
12.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 18:00
AQI:
Medium
40.3/100
PM2.5 (fine particles):
Medium
40.3/100
PM10 (coarse particles):
Good
17.1/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Fair
22.8/100
SO2 (sulfur dioxide):
Good
4.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.7/100
PM1 (ultrafine particles):
Fair
26.3/100
Frequently Asked Questions
Is air quality bad in Altamira right now?
On 16 July 2026, overall air quality in Altamira is fair. AQI is the main air quality indicator at 25.5/100. Pollution peaks around 1:00 AM (PM2.5: 25.5/100).
Will air quality be worse tomorrow in Altamira?
On 17 July 2026, air quality conditions in Altamira will be similar to today, with PM1 forecast at fair at 26.3/100. Pollution peaks around 6:00 PM (PM2.5: 40.3/100).
When is air pollution at its worst in Altamira?
In Altamira, reduced air quality is most noticeable when riparian vegetation and the Xingu River corridor species pollen peaks, and on days affected by Belo Monte dam construction and surrounding Amazon deforestation burning; a shift to wetter or windier weather typically brings noticeable relief.
Are air quality levels in Altamira 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.
Want to see air quality forecasts for other cities in Brazil?
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app