Worst air pollution Tianguá, today and tomorrow
Today (9 August): Air quality in Tianguá is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 AM (O3: 19.6/100).
Tomorrow (10 August 2026): Air quality in Tianguá is fair. AQI worsens to fair; PM2.5 increases to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 5:00 PM (PM2.5: 24.8/100). 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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Tianguá's air quality reflects the Ceará highland at 830 metres on the Ibiapaba plateau near the Piauí border, with vehicle emissions from the BR-222 and surrounding agricultural and eco-tourism operations contributing local sources. The elevated plateau position provides naturally good background dispersal, while consistent Atlantic trade wind influence at altitude generally maintains cleaner conditions than the lowland semi-arid Sertão below throughout most of the year.
Today - 9 August | Pollution peaks at 06:00
AQI:
Good
19.6/100
PM2.5 (fine particles):
Good
14.3/100
PM10 (coarse particles):
Good
6.5/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
19.6/100
SO2 (sulfur dioxide):
Good
2.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.6/100
PM1 (ultrafine particles):
Good
4.3/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 17:00
AQI:
Fair
24.8/100
PM2.5 (fine particles):
Fair
24.8/100
PM10 (coarse particles):
Good
10.4/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Fair
20.2/100
SO2 (sulfur dioxide):
Good
2.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.6/100
PM1 (ultrafine particles):
Good
13.6/100
Pollen forecast in Tianguá
View pollen forecastFrequently Asked Questions
Is air quality bad in Tianguá right now?
On 9 August 2026, overall air quality in Tianguá is good. AQI is the main air quality indicator at 19.6/100. Pollution peaks around 6:00 AM (O3: 19.6/100).
Will air quality be worse tomorrow in Tianguá?
On 10 August 2026, air quality conditions in Tianguá will be worse than today, with AQI forecast at fair at 24.8/100. Pollution peaks around 5:00 PM (PM2.5: 24.8/100).
When is air pollution at its worst in Tianguá?
In Tianguá, reduced air quality is most noticeable when native caatinga scrub and Atlantic Forest remnants on the serra slopes pollen peaks, and on days affected by vehicle emissions from the BR-222 and surrounding agricultural and eco-tourism operations; the rest of the year typically brings clearer, more consistent conditions.
Are air quality levels in Tianguá 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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