Kempten (Allgäu) vs Mahlow: PM2.5 compared

Over the last year, Mahlow's PM2.5 was about 1.6× Kempten (Allgäu)'s: it averaged 14.4 µg/m³ against 8.8, on the 332 days both cities were measured. Mahlow had the dirtier air on 275 of those days, Kempten (Allgäu) on 57. Mahlow was over the WHO's daily guideline of 15 µg/m³ on 107 of them, Kempten (Allgäu) on 39.

Right now

Kempten (Allgäu)–no readings since 11 Oct

Mahlow–no readings since 11 Oct

The last year, day by day

Kempten (Allgäu)

Mahlow

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: Kempten (Allgäu). Faded: Mahlow. A month shows once both share 10 such days. Dashed line: the WHO daily guideline, 15 µg/m³.

Year by year

Year	Kempten (Allgäu)	Mahlow	Days both measured	Days Kempten (Allgäu) was worse
2026 so far	8.9	14.9	253	41
2025	8.0	12.3	365	83
2024	8.3	13.5	256	41
2023	7.8	11.0	224	54

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

Kempten (Allgäu)

1 Jan 202618096.5 µg/m³
23 Jan 20268929.4 µg/m³
24 Jan 20268527.6 µg/m³

Mahlow

23 Jan 202615967.6 µg/m³
6 Feb 202614252.0 µg/m³
22 Jan 202613348.6 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

Kempten (Allgäu)

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

Mahlow

Side by side with Blankenfelde-Mahlow (the nearest), Berlin (Germany's 2nd worst on 30 days), Kasur (the world's worst on 30 days).

Use this page

SmogRank, PM2.5 daily means compared, Kempten (Allgäu) and Mahlow, 14 Oct 2025 – 13 Oct 2026, smogrank.com/compare/de-kempten-allgaeu/de-mahlow (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 08:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.