SmogRank / World / Italy / Liguria / September 2023

Most polluted cities in Liguria, Italy, September 2023

2 cities in Liguria, Italy ranked by their average PM2.5 over the 30 days. Worst: La Spezia at 10.3 µg/m³, #518 of 2,128 cities in the world. Cleanest: Cairo Montenotte at 7.0. A city needs measurements on 70% of the days to be ranked.

  1. 1La Spezia
    53
  2. 2Cairo Montenotte
    39
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

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SmogRank, most polluted cities in Liguria, Italy, PM2.5, September 2023, smogrank.com/it/region/liguria/history/2023-09 (accessed 7 Oct 2026).

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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.