SmogRank / Asprópyrgos / Athens

Asprópyrgos vs Athens: PM2.5 compared

Over the last year, Asprópyrgos and Athens had about the same air: PM2.5 averaged 11.3 and 11.0 µg/m³, on the 199 days both cities were measured. Asprópyrgos had the dirtier air on 126 of those days, Athens on 71. Asprópyrgos was over the WHO's daily guideline of 15 µg/m³ on 30 of them, Athens on 31.

Right now

Asprópyrgos–not on the 24-hour board right now
Athens–not on the 24-hour board right now

The last year, day by day

Asprópyrgos
Athens
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 2025Asprópyrgos, Dec: 15.3 µg/m³Athens, Dec: 17.4 µg/m³DecAsprópyrgos, Jan 2026: 13.3 µg/m³Athens, Jan 2026: 11.8 µg/m³Jan 2026Asprópyrgos, Feb: 12.2 µg/m³Athens, Feb: 11.6 µg/m³FebAsprópyrgos, Mar: 12.8 µg/m³Athens, Mar: 11.9 µg/m³MarAsprópyrgos, Apr: 10.2 µg/m³Athens, Apr: 10.2 µg/m³AprAsprópyrgos, May: 8.5 µg/m³Athens, May: 9.1 µg/m³MayAsprópyrgos, Jun: 9.6 µg/m³Athens, Jun: 9.4 µg/m³JunAsprópyrgos, Jul: 11.5 µg/m³Athens, Jul: 10.1 µg/m³JulAsprópyrgos, Aug: 10.7 µg/m³Athens, Aug: 9.1 µg/m³AugAsprópyrgos, Sep: 8.1 µg/m³Athens, Sep: 7.4 µg/m³SepOct
Monthly means in µg/m³ over the days both cities were measured. Solid: Asprópyrgos. Faded: Athens. A month shows once both share 10 such days. Dashed line: the WHO daily guideline.

Year by year

YearAsprópyrgosAthensDays both measuredDays Asprópyrgos was worse
2026 so far5453174115
20255659217103
2024646920363
20236569342119

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

Asprópyrgos

Athens

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

Asprópyrgos

Side by side with Acharnés, Kozáni, Gujranwala.

Athens

Side by side with Khalándrion, Gujranwala.

Use this page

SmogRank, PM2.5 daily means compared, Asprópyrgos and Athens, 14 Nov 2025 – 2 Oct 2026, smogrank.com/compare/gr-aspropyrgos/gr-athens (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 20:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.