Worst air pollution Sandanski, today and tomorrow
Today (9 August): Air quality in Sandanski is fair. AQI, NO2, O3, and PM1 are fair; PM2.5, PM10, SO2, CO, and HCHO are good. Pollution peaks around 2:00 PM (O3: 39.7/100).
Tomorrow (10 August 2026): Air quality in Sandanski is fair. AQI improves to medium; NO2 decreases to medium; all other pollutants stay as today. Pollution peaks around 6:00 AM (NO2: 44.3/100). 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.
Positioned in the Struma valley beneath the Pirin mountains, Sandanski experiences air quality shaped chiefly by vehicle traffic and residential wood-burning trapped by the valley. The Blagoevgrad terrain plays a role in how pollutants move through the area, with breezier conditions typically dispersing emissions faster than the still, settled spells that let them accumulate.
Today - 9 August | Pollution peaks at 14:00
AQI:
Fair
39.7/100
PM2.5 (fine particles):
Good
18.0/100
PM10 (coarse particles):
Good
5.0/100
NO2 (nitrogen dioxide):
Fair
32.1/100
O3 (ozone):
Fair
39.7/100
SO2 (sulfur dioxide):
Good
11.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.0/100
PM1 (ultrafine particles):
Fair
23.1/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 06:00
AQI:
Medium
44.3/100
PM2.5 (fine particles):
Good
18.1/100
PM10 (coarse particles):
Good
5.1/100
NO2 (nitrogen dioxide):
Medium
44.3/100
O3 (ozone):
Fair
34.9/100
SO2 (sulfur dioxide):
Good
7.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
13.4/100
PM1 (ultrafine particles):
Fair
22.8/100
Pollen forecast in Sandanski
View pollen forecastFrequently Asked Questions
Is air quality bad in Sandanski right now?
On 9 August 2026, overall air quality in Sandanski is fair. AQI is the main air quality indicator at 39.7/100. Pollution peaks around 2:00 PM (O3: 39.7/100).
Will air quality be worse tomorrow in Sandanski?
On 10 August 2026, air quality conditions in Sandanski will be similar to today, with O3 forecast at fair at 34.9/100. Pollution peaks around 6:00 AM (NO2: 44.3/100).
When is air pollution at its worst in Sandanski?
In Sandanski, the combination of birch and oak pollen peaks and vehicle traffic and residential wood-burning trapped by the valley accounts for most of the noticeable dips in air quality; Blagoevgrad's broader weather patterns tend to restore clearer conditions fairly quickly afterward.
Are air quality levels in Sandanski 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 Bulgaria?
Check air quality in other popular cities:
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.
Get the full experience in the Airmine app.