SmogRank / Countries / New Zealand / 2024

Most polluted cities in New Zealand, 2024

4 cities in New Zealand ranked by their average PM2.5 over the 366 days; 4 above the WHO annual guideline (5.0 µg/m³). Worst: Rangiora at 10.3 µg/m³, #300 of 1,686 cities in the world. Cleanest: Christchurch at 8.3. A city needs measurements on 70% of the days to be ranked.

  1. 1RangioraCanterbury
    10.32.1×
  2. 2TimaruCanterbury
    9.82.0×
  3. 3AshburtonCanterbury
    9.11.8×
  4. 4ChristchurchCanterbury
    8.31.7×
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, 2024 · New Zealand now