Gärtringen vs Herrenberg: PM2.5 compared

Over the last year, Gärtringen and Herrenberg had about the same air: PM2.5 averaged 7.5 and 7.8 µg/m³, on the 323 days both cities were measured. Gärtringen had the dirtier air on 87 of those days, Herrenberg on 166. Gärtringen was over the WHO's daily guideline of 15 µg/m³ on 23 of them, Herrenberg on 25.

Right now

Gärtringen#2,362on the 24-hour board of 2,696, at 18 US AQI (3.2 µg/m³)

Herrenberg#2,524on the 24-hour board of 2,696, at 14 US AQI (2.5 µg/m³)

The last year, day by day

Gärtringen

Herrenberg

Each city's daily mean from 14 Oct 2025 to 13 Oct 2026, one stripe a day, coloured by band. A blank stripe is a day without a daily mean.

Month by month

Monthly means in µg/m³ over the days both cities were measured. Solid: Gärtringen. Faded: Herrenberg. A month shows once both share 10 such days. Dashed line: the WHO daily guideline, 15 µg/m³.

Year by year

Year	Gärtringen	Herrenberg	Days both measured	Days Gärtringen was worse
2026 so far	7.7	7.7	251	87
2025	7.1	8.4	316	0
2024	7.7	7.7	254	0
2023	7.1	7.1	184	0

Means in µg/m³, as in the chart above, over the days both cities were measured that year; a year shows once they share 30 such days.

Each city's worst days

Gärtringen

25 Jan 20269733.8 µg/m³
24 Jan 20269432.1 µg/m³
23 Jan 20268426.7 µg/m³

Herrenberg

25 Jan 20269934.6 µg/m³
24 Jan 20269231.1 µg/m³
1 Jan 20268829.0 µg/m³

Daily means in US AQI, with µg/m³ beside them, since the index stops at its top value, over the days both cities were measured in the last year. Each date opens that day's world board.

Compare either city with another

Gärtringen

Side by side with Mahlow (Germany's worst on 30 days), Kasur (the world's worst on 30 days).

Herrenberg

Side by side with Mahlow (Germany's worst on 30 days), Kasur (the world's worst on 30 days).

Use this page

SmogRank, PM2.5 daily means compared, Gärtringen and Herrenberg, 14 Oct 2025 – 13 Oct 2026, smogrank.com/compare/de-gartringen/de-herrenberg (accessed 14 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.

The same rules as every SmogRank figure: reference monitors first, and a day counts with 18 measured hours. How we measure.

Updated 2026-10-14 06:07 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).