Worst air pollution Alameda de Hércules - Sevilla, today and tomorrow
Today (20 September): Air quality in Alameda de Hércules is fair. AQI, PM2.5, PM10, and O3 are fair; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 AM (PM2.5: 39.5/100).
Tomorrow (21 September 2026): Air quality in Alameda de Hércules is fair. All pollutants stay as today. Pollution peaks around 11:00 AM (PM2.5: 37.6/100). Airmine updates local air quality forecasts four times daily.
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Local air quality in Alameda de Hércules depends heavily on light construction dust and local traffic squeezed into narrow streets. Air quality is generally moderate, dictated mostly by how much traffic reaches the old core. Farmland just outside town contributes more to particulate levels than traffic does here.
Today - 20 September | Pollution peaks at 10:00
AQI:
Fair
39.5/100
PM2.5 (fine particles):
Fair
39.5/100
PM10 (coarse particles):
Fair
25.5/100
NO2 (nitrogen dioxide):
Good
1.5/100
O3 (ozone):
Fair
28.9/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
1.2/100
PM1 (ultrafine particles):
Good
6.2/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 11:00
AQI:
Fair
37.6/100
PM2.5 (fine particles):
Fair
37.6/100
PM10 (coarse particles):
Fair
22.5/100
NO2 (nitrogen dioxide):
Good
0.9/100
O3 (ozone):
Fair
31.1/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.5/100
HCHO (formaldehyde):
Good
1.2/100
PM1 (ultrafine particles):
Good
9.4/100
Other Landmarks in Sevilla
Sports venues in Sevilla
Frequently Asked Questions
Is air quality bad in Alameda de Hércules right now?
On 20 September 2026, overall air quality in Alameda de Hércules is fair. AQI is the main air quality indicator at 39.5/100. Pollution peaks around 10:00 AM (PM2.5: 39.5/100).
Will air quality be worse tomorrow in Alameda de Hércules?
On 21 September 2026, air quality conditions in Alameda de Hércules will be similar to today, with AQI forecast at fair at 37.6/100. Pollution peaks around 11:00 AM (PM2.5: 37.6/100).
When is air pollution at its worst in Alameda de Hércules?
When is air quality typically worst in Alameda de Hércules? Winter mornings are frequently the year's most polluted, as fog and calm conditions trap traffic fumes and smoke from wood stoves close to the ground. Spring generally sees a gradual recovery, driven by more frequent rain showers and stronger breezes that prevent pollutants from settling. High summer temperatures and strong sun exposure drive ozone levels up, occasionally combined with smoke from nearby wildfires during dry spells. The first rains of autumn typically help clear out any lingering summer dust or ozone, setting up milder conditions ahead of winter. Being close to North Africa, this area is more exposed to Saharan dust intrusions, which can add to the seasonal pattern described above.
Are air quality levels in Alameda de Hércules 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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