SmogRank / Germany / Brandenburg / Teltow
Teltow, month by month
Teltow has a measured daily mean on 1,103 days since 8 January 2023. Its worst month was January 2026, at 75 US AQI (22.1 µg/m³), 332nd of 2,617 cities on that month's world ranking. Its cleanest was October 2025, at 37 US AQI (6.7 µg/m³). 2025 averaged 54 US AQI (10.7 µg/m³), against 54 US AQI (10.9 µg/m³) in 2023.
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: 3 with no readings from the monitor, 9 with readings for part of the day (a day needs 18 hours). |
| 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. |
| Dec 2025 | 7 of 31 days measured; a month needs 22. The others: 24 with under 18 hours of readings or readings that failed our checks. |
| Nov 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. |
| 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. |
| Jan 2023 | 8 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.
Teltow's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| January 2026 | 7522.1 µg/m³ | 332ndof 2,617 | Europe, January and February 2026 Eastern Europe, January 2026 |
| February 2025 | 7421.7 µg/m³ | 440thof 2,633 | Europe, 14 February to 1 March 2025 Europe, 1 to 14 February 2025 |
| February 2026 | 7320.9 µg/m³ | 521stof 2,866 | Germany, Poland and Czechia, February 2026 Europe, January and February 2026 |
| March 2025 | 7120.1 µg/m³ | 573rdof 2,862 | Europe, March 2025 Germany, Poland and 25 more countries, March 2025and 1 more |
| February 2023 | 6315.5 µg/m³ | 308thof 1,129 | Europe, 6 to 25 February 2023 |
| March 2026 | 6215.0 µg/m³ | 843rdof 2,971 | Europe, 1 to 12 March 2026 |
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.
Teltow's worst days
| Day | US AQI | Episode |
|---|---|---|
| 23 Jan 2026 | 15763.5 µg/m³ | Europe, January and February 2026 |
| 31 Mar 2024 | 15662.2 µg/m³ | Europe, March and April 2024 |
| 13 Feb 2025 | 13850.5 µg/m³ | Europe, 1 to 14 February 2025 |
| 6 Feb 2026 | 13147.6 µg/m³ | Europe, January and February 2026 |
| 10 Jan 2024 | 12746.0 µg/m³ | Europe, 8 to 27 January 2024 |
| 25 Jan 2026 | 12445.0 µg/m³ | Europe, January and February 2026 |
| 10 Mar 2025 | 12444.7 µg/m³ | Germany, Poland and 25 more countries, March 2025 |
| 24 Jan 2026 | 12143.6 µg/m³ | Europe, January and February 2026 |
| 11 Mar 2025 | 11842.4 µg/m³ | Germany, Poland and 25 more countries, March 2025 |
| 22 Jan 2026 | 11641.7 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, Teltow, 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/teltow/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.
Teltow 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).