SmogRank / Dornbirn / Graz

Dornbirn vs Graz: PM2.5 compared

Over the last year, Graz's air was about 2.2× as polluted as Dornbirn's: PM2.5 averaged 8.9 µg/m³ against 4.1, on the 162 days both cities were measured. Graz had the dirtier air on 161 of those days, Dornbirn on 1. Graz was over the WHO's daily guideline of 15 µg/m³ on 5 of them, Dornbirn on 0.

Right now

Dornbirn–not on the 24-hour board right now
Graz#121on the 24-hour board of 1,616, at 70 US AQI (19.5 µg/m³)

The last year, day by day

Dornbirn
Graz
Each city's daily mean from 6 Oct 2025 to 5 Oct 2026, one stripe a day, coloured by band. A blank stripe is a day without a daily mean.

Month by month

15Nov 2025DecJan 2026FebMarDornbirn, Apr: 5.9 µg/m³Graz, Apr: 11.3 µg/m³AprDornbirn, May: 3.8 µg/m³Graz, May: 8.1 µg/m³MayDornbirn, Jun: 3.7 µg/m³Graz, Jun: 8.7 µg/m³JunDornbirn, Jul: 3.6 µg/m³Graz, Jul: 8.4 µg/m³JulDornbirn, Aug: 4.1 µg/m³Graz, Aug: 9.6 µg/m³AugDornbirn, Sep: 3.5 µg/m³Graz, Sep: 7.4 µg/m³SepOct
Monthly means in µg/m³ over the days both cities were measured. Solid: Dornbirn. Faded: Graz. A month shows once both share 10 such days. Dashed line: the WHO daily guideline.

Each city's worst days

Dornbirn

Graz

Daily means in US AQI, over the days both cities were measured in the last year. Each date opens that day's world board.

Compare either city with another

Dornbirn

Side by side with Lustenau, Gujranwala.

Graz

Side by side with Gratkorn, Wolfsberg, Gujranwala.

Use this page

SmogRank, PM2.5 daily means compared, Dornbirn and Graz, 7 Apr 2026 – 24 Sep 2026, smogrank.com/compare/at-dornbirn/at-graz (accessed 6 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 2026-10-06 21:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.