SmogRank / Germany / Schleswig-Holstein / Trappenkamp

Trappenkamp, month by month

Trappenkamp has a measured daily mean on 939 days since 14 February 2023. Its worst month was January 2026, at 63 US AQI (15.7 µg/m³), 717th of 2,617 cities on that month's world ranking. Its cleanest was April 2024, at 19 US AQI (3.5 µg/m³).

Every month since 2023

202647 so far219 days measured1,632nd of 2,791 in the world
Jan63#717Feb63#745Mar56#1,296Apr37#2,009May23#2,599Jun12 daysJul27#2,617Aug22#2,849Sep19 daysOct6 days
202538 for the year263 days measured2,154th of 2,681 in the world
Jan36#1,853Feb58#980Mar61#976Apr31#2,391May19 daysJun20 daysJul21#2,785Aug15 daysSep19 daysOct19 daysNov38#1,879Dec47#1,708
2024too few days for a mean (a year needs 257)230 days measured
Jan31#1,937Feb19 daysMar15 daysApr19#2,336May29#2,222Jun22#2,398Jul21 daysAug12 daysSepnoneOct15 daysNov20 daysDec26#2,331
2023too few days for a mean (a year needs 256)227 days measured
JanFeb2 daysMar7 daysApr52#532May39#1,122Jun29#1,394Jul17 daysAug20#1,946Sep36#1,674Oct19 daysNov20 daysDec50#952
Each square is a month's mean PM2.5 in US AQI from Trappenkamp'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 Trappenkamp marked; each year, the year's.
Good0–50
Moderate51–100
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

20 months
MonthWhy
Oct 20266 of 11 days measured; a month needs 8. The others: 2 with no readings from the monitor, 3 with readings for part of the day (a day needs 18 hours).
Sep 202619 of 30 days measured; a month needs 21. The others: 2 with no readings from the monitor, 9 with readings for part of the day (a day needs 18 hours).
Jun 202612 of 30 days measured; a month needs 21. The others: 9 with no readings from the monitor, 9 with readings for part of the day (a day needs 18 hours).
Oct 202519 of 31 days measured; a month needs 22. The others: 1 with no readings from the monitor, 8 with readings for part of the day (a day needs 18 hours), 3 with readings left out by our checks.
Sep 202519 of 30 days measured; a month needs 21. The others: 2 with no readings from the monitor, 4 with readings for part of the day (a day needs 18 hours), 5 with readings left out by our checks.
Aug 202515 of 31 days measured; a month needs 22. The others: 15 with no readings from the monitor, 1 with readings for part of the day (a day needs 18 hours).
Jun 202520 of 30 days measured; a month needs 21. The others: 10 with readings for part of the day (a day needs 18 hours).
May 202519 of 31 days measured; a month needs 22. The others: 1 with no readings from the monitor, 6 with readings for part of the day (a day needs 18 hours), 5 with readings left out by our checks.
Nov 202420 of 30 days measured; a month needs 21. The others: 1 with no readings from the monitor, 5 with readings for part of the day (a day needs 18 hours), 4 with readings left out by our checks.
Oct 202415 of 31 days measured; a month needs 22. The others: 16 with readings for part of the day (a day needs 18 hours).
Sep 2024No day measured. The others: 30 with readings for part of the day (a day needs 18 hours).
Aug 202412 of 31 days measured; a month needs 22. The others: 2 with no readings from the monitor, 14 with readings for part of the day (a day needs 18 hours), 3 with readings left out by our checks.
Jul 202421 of 31 days measured; a month needs 22. The others: 3 with readings for part of the day (a day needs 18 hours), 7 with readings left out by our checks.
Mar 202415 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).
Feb 202419 of 29 days measured; a month needs 21. The others: 3 with no readings from the monitor, 4 with readings for part of the day (a day needs 18 hours), 2 with readings left out by our checks, 1 missing from OpenAQ's archive.
Nov 202320 of 30 days measured; a month needs 21. The others: 9 with readings for part of the day (a day needs 18 hours), 1 with readings left out by our checks.
Oct 202319 of 31 days measured; a month needs 22. The others: 1 with no readings from the monitor, 7 with readings for part of the day (a day needs 18 hours), 4 with readings left out by our checks.
Jul 202317 of 31 days measured; a month needs 22. The others: 3 with no readings from the monitor, 6 with readings for part of the day (a day needs 18 hours), 4 with readings left out by our checks, 1 missing from OpenAQ's archive.
Mar 20237 of 31 days measured; a month needs 22. The others: 2 with no readings from the monitor, 2 with readings for part of the day (a day needs 18 hours), 20 missing from OpenAQ's archive.
Feb 20232 of 28 days measured; a month needs 20. The others: 13 missing from OpenAQ's archive.

A day counts once 18 hours of it are measured; a month needs 70% of its days.

Trappenkamp's worst months

MonthUS AQIDays measuredWorld rankEpisode
January 2026 6315.7 µg/m³28 of 31717thof 2,617Europe, January and February 2026
February 2026 6315.6 µg/m³25 of 28745thof 2,866Germany, Poland and Czechia, February 2026
Europe, January and February 2026
March 2025 6114.7 µg/m³23 of 31976thof 2,862Europe, March 2025
Germany, Poland and 25 more countries, March 2025
February 2025 5812.6 µg/m³23 of 28980thof 2,633Europe, 1 to 14 February 2025
March 2026 5611.6 µg/m³31 of 311,296thof 2,971Europe, 18 to 25 March 2026
Europe, 1 to 12 March 2026
April 2023 529.4 µg/m³26 of 30532ndof 1,622–

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.

Trappenkamp's worst days

DayUS AQIEpisode
23 Jan 2026 15967.0 µg/m³Europe, January and February 2026
7 Dec 2023 15055.2 µg/m³Europe, December 2023
6 Dec 2023 12545.3 µg/m³Europe, December 2023
24 Jan 2026 10838.2 µg/m³Europe, January and February 2026
10 Mar 2025 9935.1 µg/m³Germany, Poland and 25 more countries, March 2025
7 Feb 2026 9834.4 µg/m³Europe, January and February 2026
10 Mar 2026 9733.7 µg/m³Europe, 1 to 12 March 2026
10 Feb 2026 9633.4 µg/m³Europe, January and February 2026
8 Mar 2026 9532.5 µg/m³Europe, 1 to 12 March 2026
25 Jan 2026 9432.1 µg/m³Europe, January and February 2026

Daily means, the highest since 14 Feb 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, Trappenkamp, Germany, 14 Feb 2023 – 10 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/de/trappenkamp/history (accessed 12 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.

Trappenkamp 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).