SmogRank / Slovakia / Banská Bystrica Region / Žarnovica
Žarnovica, month by month
Žarnovica has a measured daily mean on 699 days since 29 January 2024. Its worst month was February 2025, at 107 US AQI (37.9 µg/m³), 121st of 2,633 cities on that month's world ranking. Its cleanest was September 2026, at 41 US AQI (7.4 µg/m³).
Every month since 2024
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
12 months
| Month | Why |
|---|---|
| Mar 2026 | 19 of 31 days measured; a month needs 22. The others: 10 with no readings from the monitor, 2 with readings for part of the day (a day needs 18 hours). |
| Feb 2026 | No day measured. The others: 28 with no readings from the monitor. |
| Jan 2026 | No day measured. The others: 31 with no readings from the monitor. |
| Dec 2025 | 9 of 31 days measured; a month needs 22. The others: 22 with readings for part of the day (a day needs 18 hours). |
| Oct 2025 | 17 of 31 days measured; a month needs 22. The others: 14 with readings for part of the day (a day needs 18 hours). |
| Dec 2024 | 20 of 31 days measured; a month needs 22. The others: 11 with readings for part of the day (a day needs 18 hours). |
| Oct 2024 | 14 of 31 days measured; a month needs 22. The others: 17 with readings for part of the day (a day needs 18 hours). |
| Sep 2024 | No day measured. The others: 30 with readings for part of the day (a day needs 18 hours). |
| Aug 2024 | 15 of 31 days measured; a month needs 22. The others: 4 with no readings from the monitor, 12 with readings for part of the day (a day needs 18 hours). |
| Apr 2024 | 19 of 30 days measured; a month needs 21. The others: 11 with readings for part of the day (a day needs 18 hours). |
| Mar 2024 | 14 of 31 days measured; a month needs 22. The others: 10 with no readings from the monitor, 7 with readings for part of the day (a day needs 18 hours). |
| Jan 2024 | 3 of 31 days measured; a month needs 22. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Žarnovica's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| February 2025 | 10737.9 µg/m³ | 121stof 2,633 | Europe, 14 February to 1 March 2025 |
| November 2024 | 9633.4 µg/m³ | 59thof 2,624 | Europe, November 2024 |
| January 2025 | 8929.7 µg/m³ | 95thof 2,474 | Europe, 24 December 2024 to 3 January 2025 |
| February 2024 | 7722.8 µg/m³ | 167thof 2,486 | – |
| March 2025 | 7622.3 µg/m³ | 487thof 2,862 | Europe, 14 February to 1 March 2025 |
| November 2025 | 7320.8 µg/m³ | 387thof 2,715 | – |
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.
Žarnovica's worst days
| Day | US AQI | Episode |
|---|---|---|
| 29 Dec 2024 | 17285.3 µg/m³ | Europe, 24 December 2024 to 3 January 2025 |
| 28 Dec 2024 | 16068.0 µg/m³ | Europe, 24 December 2024 to 3 January 2025 |
| 27 Dec 2024 | 15561.0 µg/m³ | Europe, 24 December 2024 to 3 January 2025 |
| 30 Jan 2024 | 15256.4 µg/m³ | – |
| 7 Jan 2025 | 14854.6 µg/m³ | – |
| 23 Feb 2025 | 14453.0 µg/m³ | Europe, 14 February to 1 March 2025 |
| 31 Jan 2024 | 14452.9 µg/m³ | – |
| 8 Nov 2024 | 14352.5 µg/m³ | Europe, November 2024 |
| 24 Feb 2025 | 14252.2 µg/m³ | Europe, 14 February to 1 March 2025 |
| 1 Apr 2024 | 14252.1 µg/m³ | Europe, March and April 2024 |
Daily means, the highest since 29 Jan 2024; 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, Žarnovica, Slovakia, 29 Jan 2024 – 11 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/sk/zarnovica/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.
Žarnovica 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).