SmogRank / Luxembourg / Grevenmacher / Grevenmacher
Grevenmacher, month by month
Grevenmacher has a measured daily mean on 975 days since 1 January 2023. Its worst month was January 2026, at 55 US AQI (11.1 µg/m³), 985th of 2,617 cities on that month's world ranking. Its cleanest was September 2025, at 23 US AQI (4.2 µg/m³).
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
18 months
| Month | Why |
|---|---|
| Oct 2025 | 14 of 31 days measured; a month needs 22. The others: 1 with no readings from the monitor, 16 with readings for part of the day (a day needs 18 hours). |
| Jun 2025 | 20 of 30 days measured; a month needs 21. The others: 10 with readings for part of the day (a day needs 18 hours). |
| May 2025 | 11 of 31 days measured; a month needs 22. The others: 4 with no readings from the monitor, 16 with readings for part of the day (a day needs 18 hours). |
| Mar 2025 | 18 of 31 days measured; a month needs 22. The others: 1 with no readings from the monitor, 12 with readings for part of the day (a day needs 18 hours). |
| Feb 2025 | 11 of 28 days measured; a month needs 20. The others: 13 with no readings from the monitor, 4 with readings for part of the day (a day needs 18 hours). |
| Dec 2024 | 11 of 31 days measured; a month needs 22. The others: 13 with no readings from the monitor, 7 with readings for part of the day (a day needs 18 hours). |
| Oct 2024 | 8 of 31 days measured; a month needs 22. The others: 3 with no readings from the monitor, 20 with readings for part of the day (a day needs 18 hours). |
| Sep 2024 | No day measured. The others: 9 with no readings from the monitor, 21 with readings for part of the day (a day needs 18 hours). |
| Aug 2024 | 9 of 31 days measured; a month needs 22. The others: 5 with no readings from the monitor, 17 with readings for part of the day (a day needs 18 hours). |
| Jun 2024 | 20 of 30 days measured; a month needs 21. The others: 2 with no readings from the monitor, 8 with readings for part of the day (a day needs 18 hours). |
| Mar 2024 | 15 of 31 days measured; a month needs 22. The others: 10 with no readings from the monitor, 6 with readings for part of the day (a day needs 18 hours). |
| Nov 2023 | 5 of 30 days measured; a month needs 21. The others: 17 with no readings from the monitor, 8 with readings for part of the day (a day needs 18 hours). |
| Oct 2023 | 1 of 31 days measured; a month needs 22. The others: 20 with no readings from the monitor, 10 with readings for part of the day (a day needs 18 hours). |
| Sep 2023 | 15 of 30 days measured; a month needs 21. The others: 9 with no readings from the monitor, 6 with readings for part of the day (a day needs 18 hours). |
| Aug 2023 | 21 of 31 days measured; a month needs 22. The others: 3 with no readings from the monitor, 7 with readings for part of the day (a day needs 18 hours). |
| 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. |
| Jan 2023 | 21 of 31 days measured; a month needs 22. The others: 3 with readings for part of the day (a day needs 18 hours), 7 missing from OpenAQ's archive. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Grevenmacher's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| January 2026 | 5511.1 µg/m³ | 985thof 2,617 | Europe, January and February 2026 |
| June 2023 | 5410.5 µg/m³ | 709thof 1,603 | – |
| March 2026 | 5410.5 µg/m³ | 1,539thof 2,971 | – |
| August 2026 | 509.0 µg/m³ | 1,181stof 2,896 | Germany, Belgium and 2 more countries, August 2026 |
| May 2023 | 498.8 µg/m³ | 720thof 1,600 | Europe, May 2023 |
| January 2024 | 498.8 µg/m³ | 1,053rdof 2,385 | – |
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.
Grevenmacher's worst days
| Day | US AQI | Episode |
|---|---|---|
| 17 Aug 2026 | 15967.4 µg/m³ | Germany, Belgium and 2 more countries, August 2026 |
| 16 Aug 2026 | 15357.9 µg/m³ | Germany, Belgium and 2 more countries, August 2026 |
| 25 Jan 2026 | 9532.7 µg/m³ | Europe, January and February 2026 |
| 14 Feb 2024 | 9030.2 µg/m³ | – |
| 20 Jan 2025 | 8527.5 µg/m³ | Germany, France and 19 more countries, January 2025 |
| 25 Mar 2025 | 8125.3 µg/m³ | Europe, March 2025 |
| 22 May 2023 | 8125.2 µg/m³ | Europe, May 2023 |
| 9 Mar 2025 | 7924.1 µg/m³ | – |
| 15 Feb 2023 | 7923.9 µg/m³ | – |
| 24 Mar 2026 | 7823.7 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, Grevenmacher, Luxembourg, 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/lu/grevenmacher/history (accessed 13 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.
Grevenmacher 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).