SmogRank / Graz / Klosterneuburg

Graz vs Klosterneuburg: PM2.5 compared

Over the last year, Graz's air was 38% more polluted than Klosterneuburg's: PM2.5 averaged 14.2 µg/m³ against 10.3, on the 331 days both cities were measured. Graz had the dirtier air on 279 of those days, Klosterneuburg on 50. Graz was over the WHO's daily guideline of 15 µg/m³ on 119 of them, Klosterneuburg on 69.

Right now

Graz#121on the 24-hour board of 1,616, at 70 US AQI (19.5 µg/m³)
Klosterneuburg#191on the 24-hour board of 1,616, at 65 US AQI (16.5 µg/m³)

The last year, day by day

Graz
Klosterneuburg
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

15Graz, Nov 2025: 14.9 µg/m³Klosterneuburg, Nov 2025: 11.9 µg/m³Nov 2025Graz, Dec: 19.6 µg/m³Klosterneuburg, Dec: 12.7 µg/m³DecGraz, Jan 2026: 32.6 µg/m³Klosterneuburg, Jan 2026: 22.1 µg/m³Jan 2026Graz, Feb: 19.4 µg/m³Klosterneuburg, Feb: 14.3 µg/m³FebGraz, Mar: 17.2 µg/m³Klosterneuburg, Mar: 14.8 µg/m³MarGraz, Apr: 11.0 µg/m³Klosterneuburg, Apr: 8.6 µg/m³AprGraz, May: 8.1 µg/m³Klosterneuburg, May: 6.2 µg/m³MayGraz, Jun: 8.4 µg/m³Klosterneuburg, Jun: 5.5 µg/m³JunGraz, Jul: 8.4 µg/m³Klosterneuburg, Jul: 5.8 µg/m³JulGraz, Aug: 9.6 µg/m³Klosterneuburg, Aug: 6.4 µg/m³AugGraz, Sep: 8.4 µg/m³Klosterneuburg, Sep: 5.8 µg/m³SepOct
Monthly means in µg/m³ over the days both cities were measured. Solid: Graz. Faded: Klosterneuburg. A month shows once both share 10 such days. Dashed line: the WHO daily guideline.

Year by year

YearGrazKlosterneuburgDays both measuredDays Graz was worse
2026 so far6053267226
20256054310247
20246755150123
20236152331284

Means in US AQI over the days both cities were measured that year; a year shows once they share 30 such days.

Each city's worst days

Graz

Klosterneuburg

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.

Klosterneuburg

Side by side with Vienna, Gujranwala.

Use this page

SmogRank, PM2.5 daily means compared, Graz and Klosterneuburg, 22 Oct 2025 – 5 Oct 2026, smogrank.com/compare/at-graz/at-klosterneuburg (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.