SmogRank / Germany / Brandenburg / Mahlow
Mahlow, month by month
Mahlow has a measured daily mean on 1,088 days since 8 January 2023. Its worst month was January 2026, at 82 US AQI (25.7 µg/m³), 230th of 2,617 cities on that month's world ranking. Its cleanest was September 2025, at 49 US AQI (8.8 µg/m³). 2025 averaged 60 US AQI (13.7 µg/m³), against 59 US AQI (13.4 µg/m³) in 2024.
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
10 months
| Month | Why |
|---|---|
| Sep 2026 | 18 of 30 days measured; a month needs 21. The others: 12 with under 18 hours of readings or readings that failed our checks. |
| Aug 2026 | 16 of 31 days measured; a month needs 22. The others: 15 with under 18 hours of readings or readings that failed our checks. |
| Jun 2025 | 20 of 30 days measured; a month needs 21. The others: 10 with under 18 hours of readings or readings that failed our checks. |
| Oct 2024 | 15 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks. |
| Sep 2024 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Aug 2024 | 15 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks. |
| Mar 2024 | 15 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks. |
| Mar 2023 | 11 of 31 days measured; a month needs 22. The others: 20 missing from OpenAQ's archive. |
| Feb 2023 | 2 of 28 days measured; a month needs 20. The others: 25 missing from OpenAQ's archive, 1 with under 18 hours of readings or readings that failed our checks. |
| Jan 2023 | 1 of 31 days measured; a month needs 22. The others: 7 missing from OpenAQ's archive, 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.
Mahlow's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| January 2026 | 8225.7 µg/m³ | 230thof 2,617 | Europe, January and February 2026 Eastern Europe, January 2026and 1 more |
| February 2025 | 8225.5 µg/m³ | 273rdof 2,633 | Europe, 1 to 14 February 2025 |
| February 2026 | 7924.2 µg/m³ | 407thof 2,866 | Europe, January and February 2026 |
| March 2025 | 7924.0 µg/m³ | 447thof 2,862 | Europe, March 2025 Germany, Poland and 25 more countries, March 2025 |
| March 2026 | 7019.3 µg/m³ | 629thof 2,971 | Europe, 18 to 25 March 2026 Europe, 1 to 12 March 2026 |
| December 2025 | 6516.4 µg/m³ | 671stof 3,006 | Europe, December 2025 to January 2026 Eastern Europe, 3 to 7 December 2025 |
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.
Mahlow's worst days
| Day | US AQI | Episode |
|---|---|---|
| 20 Jun 2024 | 16677.2 µg/m³ | – |
| 23 Jan 2026 | 16169.1 µg/m³ | Europe, January and February 2026 |
| 31 Mar 2024 | 15864.8 µg/m³ | Europe, March and April 2024 |
| 13 Feb 2025 | 15055.2 µg/m³ | Europe, 1 to 14 February 2025 |
| 10 Mar 2025 | 14252.1 µg/m³ | Germany, Poland and 25 more countries, March 2025 |
| 6 Feb 2026 | 14151.7 µg/m³ | Europe, January and February 2026 |
| 11 Mar 2025 | 13348.3 µg/m³ | Germany, Poland and 25 more countries, March 2025 |
| 25 Jan 2026 | 13147.7 µg/m³ | Europe, January and February 2026 |
| 10 Jan 2024 | 12946.9 µg/m³ | Europe, 8 to 27 January 2024 |
| 22 Jan 2026 | 12946.9 µg/m³ | Europe, January and February 2026 |
Daily means, the highest since 8 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, Mahlow, Germany, 8 Jan 2023 – 10 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/de/mahlow/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.
Mahlow now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 19:07 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).