SmogRank / Germany / Saarland / Völklingen

Völklingen, month by month

Völklingen has a measured daily mean on 661 days since 1 June 2024. Its worst month was February 2025, at 68 US AQI (18.0 µg/m³), 695th of 2,633 cities on that month's world ranking. Its cleanest was September 2025, at 26 US AQI (4.6 µg/m³).

Every month since 2024

202649 so far214 days measured1,425th of 2,798 in the world
2024too few days for a mean (a year needs 257)126 days measured
JanFebMarAprMayJun34#1,967Jul28#2,235Aug14 daysSepnoneOct15 daysNov47#1,230Dec51#1,021
Each square is a month's mean PM2.5 in US AQI from Völklingen'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 Völklingen 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

7 months
MonthWhy
Oct 20265 of 12 days measured; a month needs 9. The others: 1 with no readings from the monitor, 6 with readings for part of the day (a day needs 18 hours).
Sep 20269 of 30 days measured; a month needs 21. The others: 3 with no readings from the monitor, 18 with readings for part of the day (a day needs 18 hours).
Jun 202614 of 30 days measured; a month needs 21. The others: 16 with under 18 hours of readings or readings that failed our checks.
Jun 202520 of 30 days measured; a month needs 21. The others: 10 with under 18 hours of readings or readings that failed our checks.
Oct 202415 of 31 days measured; a month needs 22. The others: 16 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 202414 of 31 days measured; a month needs 22. The others: 17 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.

Völklingen's worst months

MonthUS AQIDays measuredWorld rankEpisode
February 2025 6818.0 µg/m³22 of 28695thof 2,633Europe, 1 to 14 February 2025
January 2026 6315.8 µg/m³28 of 31707thof 2,617Europe, January and February 2026
January 2025 5712.2 µg/m³27 of 31710thof 2,474Germany, France and 19 more countries, January 2025
Europe, January 2025
March 2025 5712.2 µg/m³26 of 311,208thof 2,862Germany, Poland and 25 more countries, March 2025
March 2026 5712.2 µg/m³26 of 311,175thof 2,971–
December 2025 5310.3 µg/m³31 of 311,268thof 3,006–

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.

Völklingen's worst days

DayUS AQIEpisode
15 Aug 2026 16372.3 µg/m³Germany, Belgium and 2 more countries, August 2026
25 Jan 2026 12244.2 µg/m³Europe, January and February 2026
10 Feb 2025 11039.2 µg/m³Europe, 1 to 14 February 2025
20 Jan 2025 11039.0 µg/m³Germany, France and 19 more countries, January 2025
24 Jan 2026 10537.2 µg/m³Europe, January and February 2026
4 Feb 2025 9733.7 µg/m³Europe, 1 to 14 February 2025
19 Jan 2025 9633.3 µg/m³Germany, France and 19 more countries, January 2025
23 Jan 2026 9331.9 µg/m³Europe, January and February 2026
22 Jan 2026 9331.5 µg/m³Europe, January and February 2026
15 Jan 2025 8828.9 µg/m³Germany, France and 19 more countries, January 2025
Europe, January 2025

Daily means, the highest since 1 Jun 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, Völklingen, Germany, 1 Jun 2024 – 10 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/de/voelklingen/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.

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

Updated 2026-10-13 04:07 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).