SmogRank / France / Auvergne-Rhône-Alpes / Sorbiers
Sorbiers, month by month
Sorbiers has a measured daily mean on 419 days since 21 May 2025. Its worst month was December 2025, at 61 US AQI (14.5 µg/m³), 761st of 3,006 cities on that month's world ranking. Its cleanest was September 2025, at 25 US AQI (4.5 µg/m³).
Every month since 2025
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
6 months
| Month | Why |
|---|---|
| Jun 2026 | 17 of 30 days measured; a month needs 21. The others: 13 with under 18 hours of readings or readings that failed our checks. |
| Jan 2026 | 21 of 31 days measured; a month needs 22. The others: 10 with under 18 hours of readings or readings that failed our checks. |
| Oct 2025 | 18 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks. |
| Aug 2025 | 18 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks. |
| Jun 2025 | 14 of 30 days measured; a month needs 21. The others: 16 with under 18 hours of readings or readings that failed our checks. |
| May 2025 | 9 of 31 days measured; a month needs 22. The others: 2 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.
Sorbiers's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| December 2025 | 6114.5 µg/m³ | 761stof 3,006 | – |
| March 2026 | 5511.0 µg/m³ | 1,423rdof 2,971 | – |
| November 2025 | 488.6 µg/m³ | 1,364thof 2,715 | – |
| July 2026 | 447.9 µg/m³ | 1,912thof 2,784 | France, July 2026 |
| February 2026 | 437.7 µg/m³ | 2,049thof 2,866 | – |
| August 2026 | 417.4 µg/m³ | 1,911thof 2,896 | – |
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.
Sorbiers's worst days
| Day | US AQI | Episode |
|---|---|---|
| 1 Jan 2026 | 9733.7 µg/m³ | – |
| 2 Jan 2026 | 9130.4 µg/m³ | – |
| 26 Jul 2026 | 8125.3 µg/m³ | France, July 2026 |
| 12 Dec 2025 | 8024.4 µg/m³ | – |
| 21 Mar 2026 | 8024.4 µg/m³ | – |
| 18 Jan 2026 | 7622.7 µg/m³ | – |
| 26 Dec 2025 | 7522.0 µg/m³ | – |
| 27 Dec 2025 | 7522.0 µg/m³ | – |
| 20 Jan 2026 | 7421.4 µg/m³ | – |
| 11 Dec 2025 | 7321.0 µg/m³ | – |
Daily means, the highest since 21 May 2025; 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, Sorbiers, France, 21 May 2025 – 11 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/fr/sorbiers/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.
Sorbiers 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).