SmogRank / World / Italy / Campania / April 2025
Most polluted cities in Campania, Italy, April 2025
2 cities in Campania, Italy ranked by their average PM2.5 over the 30 days. Worst: Acerra at 10.3 µg/m³, #1,099 of 2,896 cities in the world. Cleanest: Naples at 9.2. A city needs measurements on 70% of the days to be ranked.
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
All cities in the world, April 2025 · All cities in Italy, April 2025 · Campania now
Use this board
SmogRank, most polluted cities in Campania, Italy, PM2.5, April 2025, smogrank.com/it/region/campania/history/2025-04 (accessed 7 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.