SmogRank / World / Oceania

Most polluted cities in Oceania

0 of 7 measured cities in 2 countries were above the WHO 24-hour guideline over the last 30 days. The worst was Rangiora, New Zealand, at 9.1 µg/m³.

VanuatuTimor LesteSolomon IslandsSingapore: 2 measured citiesPapua New GuineaNew Zealand: 4 measured citiesNauruMalaysiaIndonesia: 4 measured citiesNew CaledoniaFijiAustralia: 3 measured cities
Each dot is a measured city, coloured by its PM2.5 over the last 30 days; tap a country to open it.
← Rangiora 9.1 WHO 24-hour guideline
Every measured city in Oceania, one column each, worst on the left and cleanest on the right. Point at it to read a city; tap to open it.

Countries

CountryCitiesMedianCities by bandWorst city
New Zealand47.7 Rangiora 9.1
Australia34.0 Sydney 4.5

Worst cities

  1. 1RangioraCanterbury, New Zealand 9.1
  2. 2TimaruCanterbury, New Zealand 8.0
  3. 3ChristchurchCanterbury, New Zealand 7.3
  4. 4Sydneylow-cost sensorsNew South Wales, Australia 4.5
  5. 5Melbournelow-cost sensorsVictoria, Australia 4.0
  6. 6Adelaidelow-cost sensorsSouth Australia, Australia 2.6
  7. 7Dunedinlow-cost sensorsOtago, New Zealand 2.4
All cities in the world
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

PM2.5 in µg/m³, coloured by the US EPA's PM2.5 categories. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Updated 2026-10-02 05:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors in µg/m³.