SmogRank / Bulgaria / Gabrovo / Gabrovo
Gabrovo, month by month
Gabrovo has a measured daily mean on 1,309 days since 1 January 2023. Its worst month was February 2025, at 86 US AQI (28.1 µg/m³), 231st of 2,633 cities on that month's world ranking. Its cleanest was September 2026, at 22 US AQI (4.0 µg/m³). 2025 averaged 54 US AQI (10.5 µg/m³), against 53 US AQI (10.2 µg/m³) in 2024.
Every month since 2023
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
Months without a mean, and why
2 months
| Month | Why |
|---|---|
| Mar 2023 | 12 of 31 days measured; a month needs 22. The others: 19 missing from OpenAQ's archive. |
| Feb 2023 | 3 of 28 days measured; a month needs 20. The others: 25 missing from OpenAQ's archive. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Gabrovo's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| February 2025 | 8628.1 µg/m³ | 231stof 2,633 | Europe, 14 February to 1 March 2025 |
| January 2025 | 8225.5 µg/m³ | 158thof 2,474 | Germany, France and 19 more countries, January 2025 |
| December 2023 | 7320.7 µg/m³ | 152ndof 2,247 | – |
| January 2024 | 7019.4 µg/m³ | 294thof 2,385 | Europe, 8 to 27 January 2024 |
| December 2024 | 6918.6 µg/m³ | 315thof 2,616 | – |
| January 2026 | 6818.4 µg/m³ | 539thof 2,617 | Europe, January and February 2026 |
Monthly means over the days measured; finished months only. World rank: its place on that month's world ranking of every city with enough days. Each month opens that ranking.
Gabrovo's worst days
| Day | US AQI | Episode |
|---|---|---|
| 28 Feb 2025 | 15763.7 µg/m³ | Europe, 14 February to 1 March 2025 |
| 21 Jan 2025 | 15257.4 µg/m³ | Germany, France and 19 more countries, January 2025 |
| 25 Feb 2025 | 15155.5 µg/m³ | Europe, 14 February to 1 March 2025 |
| 24 Feb 2025 | 12545.3 µg/m³ | Europe, 14 February to 1 March 2025 |
| 23 Jan 2026 | 12143.8 µg/m³ | Europe, January and February 2026 |
| 1 Mar 2025 | 12043.1 µg/m³ | Europe, 14 February to 1 March 2025 |
| 22 Jan 2025 | 11942.7 µg/m³ | Germany, France and 19 more countries, January 2025 |
| 20 Jan 2025 | 11842.5 µg/m³ | Germany, France and 19 more countries, January 2025 |
| 14 Jan 2026 | 11641.6 µg/m³ | Europe, January and February 2026 |
| 23 Jan 2024 | 11641.5 µg/m³ | Europe, 8 to 27 January 2024 |
Daily means, the highest since 1 Jan 2023; the WHO's daily guideline is 15 µg/m³. Each date opens that day's world ranking, and each episode the bad-air spell it was part of.
Use this history
SmogRank, PM2.5 monthly and daily means, Gabrovo, Bulgaria, 1 Jan 2023 – 12 Oct 2026. Monitor data from senstate via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/bg/gabrovo/history (accessed 12 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.
Gabrovo now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 22:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published (why we use them).