SmogRank / Countries / New Zealand / February 2025

Most polluted cities in New Zealand, February 2025

4 cities in New Zealand ranked by their average PM2.5 over the 28 days. Worst: Timaru at 6.6 µg/m³, #1,487 of 2,012 cities in the world. Cleanest: Rangiora at 5.1. A city needs measurements on 70% of the days to be ranked.

  1. 1TimaruCanterbury
    6.6
  2. 2AshburtonCanterbury
    5.7
  3. 3ChristchurchCanterbury
    5.2
  4. 4RangioraCanterbury
    5.1
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, February 2025 · New Zealand now