Cities with cleanest air in Bulgaria
Smolyan, Bulgaria has the lowest pm2.5 — annual mean of the 13 cities compared: 7 µg/m³ (EEA air quality statistics — BG PM2.5 annual mean 2024 (station AMS Rozhen peak), 2024-12-31).
Bulgaria cities ranked by annual PM2.5 concentration, not by current readings.
- Items compared
- 13
- Countries represented
- 1
- Last checked
- 2026-08-05
Source-backed answers
Compare each answer with its unit and checked date; the complete source ledger is below.
Showing all 13 rows
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| Original rank | City or place | Published value | Source and scope | |
|---|---|---|---|---|
| 1 | Smolyan, Bulgaria | 7 µg/m³ | 2026-08-01 | Source Scope: nearest_station · Period: 2024-12-31 |
| 2 | Varna, Bulgaria | 11 µg/m³ | 2026-07-26 | Source Scope: city · Period: 2024-12-31 |
| 3 | Gorna Oryahovitsa, Bulgaria | 14 µg/m³ | 2026-08-01 | Source Scope: nearest_station · Period: 2024-12-31 |
| 4 | Veliko Tŭrnovo, Bulgaria | 14 µg/m³ | 2026-08-05 | Source Scope: nearest_station · Period: 2024-12-31 |
| 5 | Ruse, Bulgaria | 15 µg/m³ | 2026-07-26 | Source Scope: city · Period: 2024-12-31 |
| 6 | Sofia, Bulgaria | 15 µg/m³ | 2026-07-29 | Source Scope: city · Period: 2025-12-31 |
| 7 | Asenovgrad, Bulgaria | 17 µg/m³ | 2026-08-01 | Source Scope: nearest_station · Period: 2024-12-31 |
| 8 | Dupnitsa, Bulgaria | 17 µg/m³ | 2026-08-03 | Source Scope: city · Period: 2024-12-31 |
| 9 | Kazanlak, Bulgaria | 17 µg/m³ | 2026-08-03 | Source Scope: city · Period: 2024-12-31 |
| 10 | Pazardzhik, Bulgaria | 17 µg/m³ | 2026-08-03 | Source Scope: city · Period: 2024-12-31 |
| 11 | Pernik, Bulgaria | 17 µg/m³ | 2026-07-26 | Source Scope: city · Period: 2024-12-31 |
| 12 | Plovdiv, Bulgaria | 17 µg/m³ | 2026-07-26 | Source Scope: city · Period: 2024-12-31 |
| 13 | Stara Zagora, Bulgaria | 17 µg/m³ | 2026-07-26 | Source Scope: city · Period: 2024-12-31 |
What the numbers say
- Smolyan, Bulgaria leads at 7 µg/m³.
- Stara Zagora, Bulgaria sits at the other end with 17 µg/m³.
- The middle of this ranking is 17 µg/m³, across 13 places that publish the metric.
- The spread between first and last is 10 µg/m³.
Quick answer
What does Cities with cleanest air in Bulgaria show?
Smolyan, Bulgaria has the lowest pm2.5 — annual mean of the 13 cities compared: 7 µg/m³ (EEA air quality statistics — BG PM2.5 annual mean 2024 (station AMS Rozhen peak), 2024-12-31).
How this list is built
Every row is a published pm2.5 — annual mean observation, ranked lowest first. The values were observed between 2024 and 2025. A place appears only when it publishes this exact metric, so an absent place means missing data rather than a low value. Only published cities with at least 20,000 residents and city-level observations qualify.
- Compare the displayed value, unit, source date and geographic grain together.
- A city label does not change a regional observation into a city measurement.
- Rows
- 13 places
- Geographic grain
- 2 grains: nearest_station, city
- Observation period
- 2024-12-31 to 2025-12-31
- Last checked
- 2026-08-05
- With an official source link
- 13 of 13
Cite this page
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APA citation
ImmigrationDB. (2026, September 29). Cities with cleanest air in Bulgaria [ImmigrationDB compilation; version 9d85032800e2941bf9e6e956ac67fe6c]. ImmigrationDB. https://immigrationdb.com/reports/bulgaria-cities-with-cleanest-air/ Retrieved 2026-09-29. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/BibTeX citation
@misc{immigrationdb_immigrationdb_cities-with-cleanest-air-in-bulgaria_84efa0cac250,
author = {ImmigrationDB},
title = {Cities with cleanest air in Bulgaria},
publisher = {ImmigrationDB},
year = {2026},
date = {2026-09-29},
version = {9d85032800e2941bf9e6e956ac67fe6c},
url = {https://immigrationdb.com/reports/bulgaria-cities-with-cleanest-air/},
note = {Retrieved 2026-09-29. ImmigrationDB compilation. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/},
}Markdown citation
[Cities with cleanest air in Bulgaria](https://immigrationdb.com/reports/bulgaria-cities-with-cleanest-air/) — ImmigrationDB; ImmigrationDB; version 9d85032800e2941bf9e6e956ac67fe6c; retrieved 2026-09-29; built 2026-09-29.This citation identifies the ImmigrationDB compilation/page. Underlying source publishers and datasets retain their own terms; inspect the Sources section and cite those records separately. View the underlying source records.