SmogRank / World / Australia / New South Wales / October 2026

Most polluted cities in New South Wales, Australia, October 2026

6 cities in New South Wales, Australia ranked by their average PM2.5 so far (7 of 31 days). Worst: Newcastle at 10.0 µg/m³, #741 of 2,649 cities in the world. Cleanest: Coffs Harbour at 4.5. A city needs measurements on 70% of the days to be ranked.

← Newcastle 10.0 µg/m³ 20 µg/m³0
Every city in New South Wales, Australia ranked for October 2026, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
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 New South Wales, Australia, PM2.5, October 2026 (so far), smogrank.com/au/region/new-south-wales/history/2026-10 (accessed 8 Oct 2026). Some readings from Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); Love My Air (City and County of Denver), no reuse terms published.

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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.