SmogRank / Germany / Schleswig-Holstein / Tarp

Tarp, month by month

Tarp has a measured daily mean on 750 days since 29 January 2024. Its worst month was March 2025, at 62 US AQI (14.9 µg/m³), 954th of 2,862 cities on that month's world ranking. Its cleanest was July 2024, at 18 US AQI (3.2 µg/m³).

Every month since 2024

202642 so far225 days measured2,004th of 2,791 in the world
2024too few days for a mean (a year needs 257)227 days measured
Each square is a month's mean PM2.5 in US AQI from Tarp'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 Tarp 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

9 months
MonthWhy
Oct 20267 of 11 days measured; a month needs 8. The others: 1 with no readings from the monitor, 3 with readings for part of the day (a day needs 18 hours).
Aug 202621 of 31 days measured; a month needs 22. The others: 5 with readings for part of the day (a day needs 18 hours), 5 with readings left out by our checks.
Jun 202614 of 30 days measured; a month needs 21. The others: 7 with no readings from the monitor, 9 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).
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 202415 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).
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).
Jan 20243 of 31 days measured; a month needs 22.

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

Tarp's worst months

MonthUS AQIDays measuredWorld rankEpisode
March 2025 6214.9 µg/m³24 of 31954thof 2,862Europe, March 2025
Germany, Poland and 25 more countries, March 2025
February 2026 5913.2 µg/m³26 of 28908thof 2,866Germany, Poland and Czechia, February 2026
Europe, January and February 2026
January 2026 5812.9 µg/m³27 of 31879thof 2,617Europe, January and February 2026
March 2026 5712.2 µg/m³31 of 311,175thof 2,971Europe, 18 to 25 March 2026
Europe, 1 to 12 March 2026
February 2025 5611.9 µg/m³24 of 281,023rdof 2,633Europe, 1 to 14 February 2025
December 2025 478.5 µg/m³29 of 311,708thof 3,006–

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.

Tarp's worst days

DayUS AQIEpisode
23 Jan 2026 12244.1 µg/m³Europe, January and February 2026
10 Mar 2026 9935.1 µg/m³Europe, 1 to 12 March 2026
3 Mar 2024 9834.5 µg/m³Europe, February and March 2024
8 Mar 2026 9633.4 µg/m³Europe, 1 to 12 March 2026
6 Mar 2025 9532.5 µg/m³Germany, Poland and 25 more countries, March 2025
7 Mar 2026 9432.0 µg/m³Europe, 1 to 12 March 2026
4 Feb 2025 9130.5 µg/m³Europe, 1 to 14 February 2025
10 Mar 2025 9130.4 µg/m³Germany, Poland and 25 more countries, March 2025
10 Feb 2026 9030.3 µg/m³Europe, January and February 2026
9 Mar 2026 9029.8 µg/m³Europe, 1 to 12 March 2026

Daily means, the highest since 29 Jan 2024; 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, Tarp, Germany, 29 Jan 2024 – 10 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/de/tarp/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.

Tarp now: the last 24 hours, its ranks today and the last 12 months day by day.

Updated 2026-10-12 18:07 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).