SmogRank / Slovakia / Žilina Region / Oščadnica

Oščadnica, month by month

Oščadnica has a measured daily mean on 705 days since 29 January 2024. Its worst month was February 2025, at 93 US AQI (31.6 µg/m³), 193rd of 2,633 cities on that month's world ranking. Its cleanest was September 2026, at 37 US AQI (6.6 µg/m³).

Every month since 2024

2026too few days for a mean (a year needs 200)194 days measured
202560 for the year284 days measured456th of 2,681 in the world
2024too few days for a mean (a year needs 257)227 days measured
Jan3 daysFeb67#256Mar13 daysApr19 daysMay52#877Jun51#847Jul54#619Aug15 daysSepnoneOct12 daysNov76#154Dec73#227
Each square is a month's mean PM2.5 in US AQI from Oščadnica's measured days, with its place on that month's world ranking under it. A month has a mean once 70% of its days are measured, the rule the monthly rankings use; under that, the square gives the days measured. Each square opens that month's ranking with Oščadnica marked; each year, the year's. A dashed square is the running month, so far.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

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
MonthWhy
Mar 202619 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks.
Feb 2026No day measured. The others: 28 with under 18 hours of readings or readings that failed our checks.
Jan 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Dec 20258 of 31 days measured; a month needs 22. The others: 23 with under 18 hours of readings or readings that failed our checks.
Oct 202518 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks.
Jun 202517 of 30 days measured; a month needs 21. The others: 13 with under 18 hours of readings or readings that failed our checks.
Oct 202412 of 31 days measured; a month needs 22. The others: 19 with under 18 hours of readings or readings that failed our checks.
Sep 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Aug 202415 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Apr 202419 of 30 days measured; a month needs 21. The others: 11 with under 18 hours of readings or readings that failed our checks.
Mar 202413 of 31 days measured; a month needs 22. The others: 18 with under 18 hours of readings or readings that failed our checks.
Jan 20243 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.

Oščadnica's worst months

MonthUS AQIDays measuredWorld rankEpisode
February 2025 9331.6 µg/m³24 of 28193rdof 2,633Europe, 14 February to 1 March 2025
November 2024 7622.7 µg/m³26 of 30154thof 2,624Europe, November 2024
Eastern Europe, October and November 2024
December 2024 7321.0 µg/m³26 of 31227thof 2,616Europe, 24 December 2024 to 3 January 2025
January 2025 7120.0 µg/m³29 of 31303rdof 2,474Germany, France and 19 more countries, January 2025
Europe, 24 December 2024 to 3 January 2025
March 2025 6918.9 µg/m³26 of 31640thof 2,862Europe, March 2025
Europe, 14 February to 1 March 2025
February 2024 6717.8 µg/m³28 of 29256thof 2,486–

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.

Oščadnica's worst days

DayUS AQIEpisode
28 Dec 2024 15459.5 µg/m³Europe, 24 December 2024 to 3 January 2025
10 Apr 2024 14151.6 µg/m³–
30 Dec 2024 14051.3 µg/m³Europe, 24 December 2024 to 3 January 2025
31 Dec 2024 13950.9 µg/m³Europe, 24 December 2024 to 3 January 2025
10 Nov 2024 13549.5 µg/m³Europe, November 2024
22 Jan 2025 12846.4 µg/m³Germany, France and 19 more countries, January 2025
22 Feb 2025 12545.2 µg/m³Europe, 14 February to 1 March 2025
9 Nov 2024 12344.4 µg/m³Europe, November 2024
18 Feb 2025 12244.0 µg/m³Europe, 14 February to 1 March 2025
3 Feb 2025 12043.1 µg/m³–

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, Oščadnica, 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/oscadnica/history (accessed 12 Oct 2026).

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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.

Oščadnica now: the last 24 hours, its ranks today and the last 12 months day by day.

Updated 2026-10-12 21:07 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).