SmogRank / Czechia / Ústí nad Labem Region / Litvínov

Litvínov, month by month

Litvínov has a measured daily mean on 660 days since 1 January 2023. Its worst month was January 2024, at 70 US AQI (19.5 µg/m³), 288th of 2,385 cities on that month's world ranking. Its cleanest was April 2024, at 46 US AQI (8.2 µg/m³).

Every month since 2023

2026too few days for a mean (a year needs 200)29 days measured
Jan8 daysFeb2 daysMarnoneApr2 daysMay6 daysJun4 daysJulnoneAugnoneSep1 dayOct6 days
2025too few days for a mean (a year needs 256)81 days measured
Jan14 daysFeb17 daysMar9 daysApr10 daysMay9 daysJun1 dayJul1 dayAug3 daysSep9 daysOct5 daysNov2 daysDec1 day
2024too few days for a mean (a year needs 257)215 days measured
Jan70#288Feb57#436Mar15 daysApr46#1,281May48#1,072Jun1 dayJul51#951Aug1 daySepnoneOct8 daysNov66#311Dec62#455
202357 for the year335 days measured207th of 1,355 in the world
Jan57#331Feb62#350Mar59#118Apr55#298May54#358Jun57#522Jul52#720Aug55#407Sep57#293Oct55#254Nov48#941Dec68#198
Each square is a month's mean PM2.5 in US AQI from Litvínov'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 Litvínov marked; each year, the year's.
Good0–50
Moderate51–100
Unhealthy for 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

27 months
MonthWhy
Oct 20266 of 12 days measured; a month needs 9. The others: 6 with readings for part of the day (a day needs 18 hours).
Sep 20261 of 30 days measured; a month needs 21. The others: 29 with readings for part of the day (a day needs 18 hours).
Aug 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jul 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jun 20264 of 30 days measured; a month needs 21. The others: 26 with under 18 hours of readings or readings that failed our checks.
May 20266 of 31 days measured; a month needs 22. The others: 25 with under 18 hours of readings or readings that failed our checks.
Apr 20262 of 30 days measured; a month needs 21. The others: 28 with under 18 hours of readings or readings that failed our checks.
Mar 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Feb 20262 of 28 days measured; a month needs 20. The others: 26 with under 18 hours of readings or readings that failed our checks.
Jan 20268 of 31 days measured; a month needs 22. The others: 23 with under 18 hours of readings or readings that failed our checks.
Dec 20251 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Nov 20252 of 30 days measured; a month needs 21. The others: 28 with under 18 hours of readings or readings that failed our checks.
Oct 20255 of 31 days measured; a month needs 22. The others: 26 with under 18 hours of readings or readings that failed our checks.
Sep 20259 of 30 days measured; a month needs 21. The others: 21 with under 18 hours of readings or readings that failed our checks.
Aug 20253 of 31 days measured; a month needs 22. The others: 28 with under 18 hours of readings or readings that failed our checks.
Jul 20251 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Jun 20251 of 30 days measured; a month needs 21. The others: 29 with under 18 hours of readings or readings that failed our checks.
May 20259 of 31 days measured; a month needs 22. The others: 22 with under 18 hours of readings or readings that failed our checks.
Apr 202510 of 30 days measured; a month needs 21. The others: 20 with under 18 hours of readings or readings that failed our checks.
Mar 20259 of 31 days measured; a month needs 22. The others: 22 with under 18 hours of readings or readings that failed our checks.
Feb 202517 of 28 days measured; a month needs 20. The others: 11 with under 18 hours of readings or readings that failed our checks.
Jan 202514 of 31 days measured; a month needs 22. The others: 17 with under 18 hours of readings or readings that failed our checks.
Oct 20248 of 31 days measured; a month needs 22. The others: 23 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 20241 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Jun 20241 of 30 days measured; a month needs 21. The others: 29 with under 18 hours of readings or readings that failed our checks.
Mar 202415 of 31 days measured; a month needs 22. The others: 16 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.

Litvínov's worst months

MonthUS AQIDays measuredWorld rankEpisode
January 2024 7019.5 µg/m³30 of 31288thof 2,385Europe, 27 January to 2 February 2024
Europe, 8 to 27 January 2024and 1 more
December 2023 6818.1 µg/m³28 of 31198thof 2,247Eastern Europe, December 2023
Europe, December 2023and 1 more
November 2024 6617.4 µg/m³27 of 30311thof 2,624Eastern Europe, 25 to 29 November 2024
Europe, November 2024
December 2024 6215.2 µg/m³23 of 31455thof 2,616Europe, 24 December 2024 to 3 January 2025
February 2023 6214.9 µg/m³27 of 28350thof 1,129Europe, 6 to 25 February 2023
March 2023 5913.3 µg/m³25 of 31118thof 911Europe, 17 to 22 March 2023

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.

Litvínov's worst days

DayUS AQIEpisode
22 Jan 2024 15257.0 µg/m³Europe, 8 to 27 January 2024
21 Feb 2025 15155.8 µg/m³Europe, 14 February to 1 March 2025
6 Dec 2023 14955.0 µg/m³Europe, December 2023
31 Jan 2024 14252.3 µg/m³Europe, 27 January to 2 February 2024
1 Mar 2024 14151.6 µg/m³Europe, February and March 2024
7 Dec 2023 13047.2 µg/m³Europe, December 2023
9 Nov 2024 13047.2 µg/m³Europe, November 2024
29 Dec 2024 12143.5 µg/m³Europe, 24 December 2024 to 3 January 2025
4 Feb 2025 12043.1 µg/m³Europe, 1 to 14 February 2025
25 Jan 2026 11842.3 µg/m³Europe, January and February 2026

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, Litvínov, Czechia, 1 Jan 2023 – 12 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/cz/litvinov/history (accessed 13 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.

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

Updated 2026-10-13 03:07 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).