Amarante Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (11 October): Air quality in Amarante is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 14.5/100).
Air Quality Tomorrow
Tomorrow (12 October 2026): Air quality in Amarante is fair. AQI worsens to fair; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 10:00 PM (PM1: 22.3/100).
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Air Quality
Today - 11 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Good | 14.5/100 |
| PM2.5 (fine particles) | Good | 4.6/100 |
| PM10 (coarse particles) | Good | 5.0/100 |
| NO2 (nitrogen dioxide) | Good | 9.3/100 |
| O3 (ozone) | Good | 14.5/100 |
| SO2 (sulfur dioxide) | Good | 0.7/100 |
| CO (carbon monoxide) | Good | 0.5/100 |
| HCHO (formaldehyde) | Good | 3.4/100 |
| PM1 (ultrafine particles) | Good | 12.6/100 |
Tomorrow - 12 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Fair | 22.3/100 |
| PM2.5 (fine particles) | Good | 8.5/100 |
| PM10 (coarse particles) | Good | 8.1/100 |
| NO2 (nitrogen dioxide) | Good | 13.1/100 |
| O3 (ozone) | Good | 14.8/100 |
| SO2 (sulfur dioxide) | Good | 0.7/100 |
| CO (carbon monoxide) | Good | 0.5/100 |
| HCHO (formaldehyde) | Good | 3.5/100 |
| PM1 (ultrafine particles) | Fair | 22.3/100 |
Local Environmental Conditions
The center of Amarante combines built-up streets with more open land, so local traffic matters, though emissions are less concentrated than in a city center. Its setting in a valley means cold air and pollution can get trapped close to the ground during calm spells. Local sources include traffic on the A4 motorway. Woodland in the area offers some natural filtering of particles from traffic.
Summer sun from July to August cooks traffic fumes into ozone, especially in the warmest month, which averages 23°C. The valley is most prone to stagnant air from December to January, when temperatures near 6°C and light winds trap emissions from home heating and traffic. The risk of wildfire smoke peaks from July to August, when dry vegetation burns easily.
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Frequently Asked Questions About Air Quality in Porto
Is air quality bad in Amarante right now?
On 11 October 2026, overall air quality in Amarante is good. AQI is the main air quality indicator at 14.5/100. Pollution peaks around 5:00 PM (O3: 14.5/100).
Will air quality be worse tomorrow in Amarante?
On 12 October 2026, air quality conditions in Amarante will be worse than today, with AQI forecast at fair at 22.3/100. Pollution peaks around 10:00 PM (PM1: 22.3/100).
When is air pollution at its worst in Amarante?
Summer sun from July to August cooks traffic fumes into ozone, especially in the warmest month, which averages 23°C. The valley is most prone to stagnant air from December to January, when temperatures near 6°C and light winds trap emissions from home heating and traffic. The risk of wildfire smoke peaks from July to August, when dry vegetation burns easily.
Are air quality levels in Amarante 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.
Understanding the Scale
The 0–100 air quality scores represent risk levels, not direct air pollutant concentrations. Higher scores indicate higher risk.
Air Quality
| Good | 0-20 | Low air quality risk. Air quality is expected to be good, with low levels of pollution. |
| Fair | 20-40 | Generally low air quality risk. Air quality is expected to be acceptable, with some pollution present. |
| Moderate | 40-60 | Moderate air quality risk. Air pollution is elevated and air quality may be less favorable. |
| Poor | 60-80 | High air quality risk. Air pollution is high and air quality is expected to be poor. |
| Very Poor | 80-100 | Very high air quality risk. Air pollution is very high and air quality is expected to be very poor. |