SmogRank / Slovakia / Prešov Region / Veľká Lomnica
Veľká Lomnica, month by month
Veľká Lomnica has a measured daily mean on 1,026 days since 1 January 2023. Its worst month was February 2025, at 60 US AQI (14.0 µg/m³), 920th of 2,633 cities on that month's world ranking. Its cleanest was November 2023, at 26 US AQI (4.6 µg/m³). 2025 averaged 41 US AQI (7.4 µg/m³), against 43 US AQI (7.7 µg/m³) in 2023.
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
15 months
| Month | Why |
|---|---|
| Oct 2026 | 7 of 11 days measured; a month needs 8. The others: 3 with no readings from the monitor, 1 with readings for part of the day (a day needs 18 hours). |
| Mar 2026 | 19 of 31 days measured; a month needs 22. The others: 12 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 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Dec 2025 | 21 of 31 days measured; a month needs 22. The others: 10 with under 18 hours of readings or readings that failed our checks. |
| Nov 2025 | 20 of 30 days measured; a month needs 21. The others: 10 with under 18 hours of readings or readings that failed our checks. |
| Oct 2025 | 16 of 31 days measured; a month needs 22. The others: 15 with under 18 hours of readings or readings that failed our checks. |
| Jun 2025 | 20 of 30 days measured; a month needs 21. The others: 10 with under 18 hours of readings or readings that failed our checks. |
| Oct 2024 | 14 of 31 days measured; a month needs 22. The others: 17 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 | 15 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks. |
| Apr 2024 | 18 of 30 days measured; a month needs 21. The others: 12 with under 18 hours of readings or readings that failed our checks. |
| Mar 2024 | 14 of 31 days measured; a month needs 22. The others: 17 with under 18 hours of readings or readings that failed our checks. |
| Mar 2023 | 11 of 31 days measured; a month needs 22. The others: 20 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.
Veľká Lomnica's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| February 2025 | 6014.0 µg/m³ | 920thof 2,633 | Europe, 14 February to 1 March 2025 |
| June 2026 | 5511.5 µg/m³ | 520thof 2,497 | – |
| June 2024 | 5410.6 µg/m³ | 528thof 2,563 | – |
| March 2025 | 5410.5 µg/m³ | 1,514thof 2,862 | Europe, March 2025 Europe, 14 February to 1 March 2025 |
| July 2024 | 529.9 µg/m³ | 766thof 2,566 | – |
| June 2023 | 529.8 µg/m³ | 821stof 1,603 | – |
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.
Veľká Lomnica's worst days
| Day | US AQI | Episode |
|---|---|---|
| 1 Apr 2024 | 9934.6 µg/m³ | Europe, March and April 2024 |
| 7 Dec 2023 | 9331.8 µg/m³ | Europe, December 2023 |
| 24 Feb 2025 | 9231.1 µg/m³ | Europe, 14 February to 1 March 2025 |
| 27 Mar 2025 | 8125.3 µg/m³ | Europe, March 2025 |
| 13 Nov 2024 | 8024.6 µg/m³ | – |
| 30 Jun 2026 | 8024.6 µg/m³ | – |
| 28 Jun 2026 | 8024.4 µg/m³ | – |
| 23 Feb 2025 | 7823.4 µg/m³ | Europe, 14 February to 1 March 2025 |
| 23 Jun 2023 | 7522.0 µg/m³ | – |
| 27 Jun 2026 | 7522.0 µg/m³ | – |
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, Veľká Lomnica, Slovakia, 1 Jan 2023 – 11 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/sk/velka-lomnica/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.
Veľká Lomnica 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).