SmogRank / Graz / Knittelfeld

Graz vs Knittelfeld: PM2.5 compared

Over the last year, Graz's air was 6% more polluted than Knittelfeld's: PM2.5 averaged 13.5 µg/m³ against 12.7, on the 255 days both cities were measured. Graz had the dirtier air on 104 of those days, Knittelfeld on 147. Graz was over the WHO's daily guideline of 15 µg/m³ on 72 of them, Knittelfeld on 65.

Right now

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

The last year, day by day

Graz
Knittelfeld
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 2025DecGraz, Jan 2026: 31.3 µg/m³Knittelfeld, Jan 2026: 22.8 µg/m³Jan 2026Graz, Feb: 19.4 µg/m³Knittelfeld, Feb: 15.4 µg/m³FebGraz, Mar: 17.2 µg/m³Knittelfeld, Mar: 16.2 µg/m³MarGraz, Apr: 11.0 µg/m³Knittelfeld, Apr: 12.1 µg/m³AprGraz, May: 8.1 µg/m³Knittelfeld, May: 9.5 µg/m³MayGraz, Jun: 8.4 µg/m³Knittelfeld, Jun: 10.2 µg/m³JunGraz, Jul: 8.5 µg/m³Knittelfeld, Jul: 8.2 µg/m³JulGraz, Aug: 9.6 µg/m³Knittelfeld, Aug: 10.9 µg/m³AugGraz, Sep: 7.4 µg/m³Knittelfeld, Sep: 7.8 µg/m³SepOct
Monthly means in µg/m³ over the days both cities were measured. Solid: Graz. Faded: Knittelfeld. A month shows once both share 10 such days. Dashed line: the WHO daily guideline.

Each city's worst days

Graz

Knittelfeld

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

Graz

Side by side with Gratkorn, Wolfsberg, Gujranwala.

Knittelfeld

Side by side with Leoben, Gujranwala.

Use this page

SmogRank, PM2.5 daily means compared, Graz and Knittelfeld, 2 Jan 2026 – 24 Sep 2026, smogrank.com/compare/at-graz/at-knittelfeld (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.