Worst air pollution Yambol, today and tomorrow
Today (21 September): Air quality in Yambol is moderate. AQI, PM2.5, and PM1 are moderate; PM10 and NO2 are fair; O3, SO2, CO, and HCHO are good. Pollution peaks around 8:00 AM (PM1: 42.3/100).
Tomorrow (22 September 2026): Air quality in Yambol is good. AQI improves to good; PM2.5 decreases to good; PM10 decreases to good; NO2 decreases to good; PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 8:00 PM (NO2: 14.6/100). 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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Yambol's air quality reflects the Tundzha river valley in southeastern Bulgaria, with vehicle traffic on the surrounding road network and agricultural operations contributing local sources. Winter residential wood and coal burning generates elevated PM2.5, while the flat Thracian plain to the west generally allows reasonable wind dispersal and the Strandja and Sakar mountain ranges to the east and south create topographic variation throughout the year.
Today - 21 September | Pollution peaks at 08:00
AQI:
Moderate
42.3/100
PM2.5 (fine particles):
Moderate
41.0/100
PM10 (coarse particles):
Fair
20.8/100
NO2 (nitrogen dioxide):
Fair
25.1/100
O3 (ozone):
Good
17.4/100
SO2 (sulfur dioxide):
Good
6.7/100
CO (carbon monoxide):
Good
0.7/100
HCHO (formaldehyde):
Good
4.8/100
PM1 (ultrafine particles):
Moderate
42.3/100
Levels show the poorest local air quality during the day
Tomorrow - 22 September | Pollution peaks at 20:00
AQI:
Good
14.6/100
PM2.5 (fine particles):
Good
10.7/100
PM10 (coarse particles):
Good
5.0/100
NO2 (nitrogen dioxide):
Good
14.6/100
O3 (ozone):
Good
14.3/100
SO2 (sulfur dioxide):
Good
1.6/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
2.0/100
PM1 (ultrafine particles):
Good
11.3/100
Pollen forecast in Yambol
View pollen forecastFrequently Asked Questions
Is air quality bad in Yambol right now?
On 21 September 2026, overall air quality in Yambol is moderate. AQI is the main air quality indicator at 42.3/100. Pollution peaks around 8:00 AM (PM1: 42.3/100).
Will air quality be worse tomorrow in Yambol?
On 22 September 2026, air quality conditions in Yambol will be better than today, with AQI forecast at good at 14.6/100. Pollution peaks around 8:00 PM (NO2: 14.6/100).
When is air pollution at its worst in Yambol?
Air quality dips in Yambol mostly track local tree and grass pollen peaks and periods of vehicle traffic on the neighbouring road network and agricultural operations; the clearest air tends to follow a change in wind direction or rainfall here.
Are air quality levels in Yambol 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: 21 September 2026 at 03:04 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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