SmogRank / Croatia / County of Osijek-Baranja / Liberpolis
Liberpolis, month by month
Liberpolis has a measured daily mean on 454 days since 11 January 2023. Its worst month was November 2024, at 75 US AQI (21.9 µg/m³), 166th of 2,624 cities on that month's world ranking. Its cleanest was May 2024, at 22 US AQI (3.9 µg/m³).
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
34 months
| Month | Why |
|---|---|
| Oct 2026 | 3 of 11 days measured; a month needs 8. The others: 5 with no readings from the monitor, 3 with readings for part of the day (a day needs 18 hours). |
| Sep 2026 | No day measured. The others: 29 with readings for part of the day (a day needs 18 hours), 1 with under 18 hours of readings or readings that failed our checks. |
| Aug 2026 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Jul 2026 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Jun 2026 | 1 of 30 days measured; a month needs 21. The others: 29 with under 18 hours of readings or readings that failed our checks. |
| May 2026 | 2 of 31 days measured; a month needs 22. The others: 29 with under 18 hours of readings or readings that failed our checks. |
| Apr 2026 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Mar 2026 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Feb 2026 | No day measured. The others: 28 with under 18 hours of readings or readings that failed our checks. |
| Jan 2026 | 4 of 31 days measured; a month needs 22. The others: 27 with under 18 hours of readings or readings that failed our checks. |
| Dec 2025 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Nov 2025 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Oct 2025 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Sep 2025 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Aug 2025 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Jul 2025 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Jun 2025 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| May 2025 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Apr 2025 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Mar 2025 | 6 of 31 days measured; a month needs 22. The others: 25 with under 18 hours of readings or readings that failed our checks. |
| Feb 2025 | 19 of 28 days measured; a month needs 20. The others: 9 with under 18 hours of readings or readings that failed our checks. |
| Jan 2025 | 20 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks. |
| Oct 2024 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Sep 2024 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Aug 2024 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Jul 2024 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Jun 2024 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Apr 2024 | 16 of 30 days measured; a month needs 21. The others: 14 with under 18 hours of readings or readings that failed our checks. |
| Mar 2024 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Feb 2024 | 15 of 29 days measured; a month needs 21. The others: 14 with under 18 hours of readings or readings that failed our checks. |
| Dec 2023 | 21 of 31 days measured; a month needs 22. The others: 10 with under 18 hours of readings or readings that failed our checks. |
| Sep 2023 | 17 of 30 days measured; a month needs 21. The others: 13 with under 18 hours of readings or readings that failed our checks. |
| Mar 2023 | 21 of 31 days measured; a month needs 22. The others: 2 missing from OpenAQ's archive, 8 with under 18 hours of readings or readings that failed our checks. |
| Jan 2023 | 7 of 31 days measured; a month needs 22. The others: 14 with under 18 hours of readings or readings that failed our checks. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Liberpolis's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| November 2024 | 7521.9 µg/m³ | 166thof 2,624 | Southern Europe, November 2024 Europe, November 2024 |
| December 2024 | 7120.1 µg/m³ | 260thof 2,616 | Europe, 24 December 2024 to 3 January 2025 Serbia, Slovenia and 10 more countries, December 2024 |
| February 2023 | 6315.8 µg/m³ | 287thof 1,129 | Europe, 6 to 25 February 2023 |
| January 2024 | 6315.6 µg/m³ | 428thof 2,385 | Europe, 27 January to 2 February 2024 Europe, 8 to 27 January 2024 |
| April 2023 | 5712.4 µg/m³ | 246thof 1,622 | Europe, April 2023 |
| May 2023 | 5410.8 µg/m³ | 373rdof 1,600 | – |
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.
Liberpolis's worst days
| Day | US AQI | Episode |
|---|---|---|
| 23 Jan 2026 | 15663.2 µg/m³ | Europe, January and February 2026 |
| 19 Dec 2024 | 13850.5 µg/m³ | Serbia, Slovenia and 10 more countries, December 2024 |
| 19 Nov 2024 | 13248.0 µg/m³ | Southern Europe, November 2024 |
| 8 Nov 2024 | 13047.2 µg/m³ | Europe, November 2024 |
| 9 Mar 2025 | 11942.8 µg/m³ | Germany, Poland and 25 more countries, March 2025 |
| 2 Jan 2025 | 11239.8 µg/m³ | Europe, 24 December 2024 to 3 January 2025 |
| 1 Feb 2024 | 11139.4 µg/m³ | Europe, 27 January to 2 February 2024 |
| 22 Jan 2026 | 10938.7 µg/m³ | Europe, January and February 2026 |
| 7 Nov 2024 | 10537.3 µg/m³ | Europe, November 2024 |
| 23 Jan 2025 | 10537.2 µg/m³ | Poland, Hungary and 2 more countries, January 2025 |
Daily means, the highest since 11 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, Liberpolis, Croatia, 11 Jan 2023 – 11 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/hr/liberpolis/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.
Liberpolis now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 20:07 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).