SmogRank / Alfeld / Mahlow

Alfeld vs Mahlow: PM2.5 compared

Alfeld and Mahlow were both measured on only 0 days over the last year, too few to compare them (it takes 30).

Right now

Alfeld#2,561on the 24-hour board of 2,645, at 11 US AQI (1.9 µg/m³)

Mahlow–no readings since 11 Oct

Compare either city with another

Alfeld

Side by side with Hildesheim (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).

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 05:07 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).