SmogRank / World / New Zealand / January 2024
Most polluted cities in New Zealand, January 2024
1 city in New Zealand ranked by their average PM2.5 over the 31 days. Worst: Rangiora at 3.9 µg/m³, #1,965 of 2,056 cities in the world. A city needs measurements on 70% of the days to be ranked.
- 1RangioraCanterbury 22
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
All cities in the world, January 2024 · New Zealand now
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SmogRank, most polluted cities in New Zealand, PM2.5, January 2024, smogrank.com/nz/history/2024-01 (accessed 2 Oct 2026).
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