SmogRank / World / Oceania

Most polluted cities in Oceania

6 of 7 measured cities in 2 countries were above the WHO annual guideline so far this year. The worst was Rangiora, New Zealand, at 10.8 µg/m³.

VanuatuTimor LesteSolomon IslandsSingaporePapua New GuineaNew Zealand: 4 measured citiesNauruMalaysiaIndonesiaNew CaledoniaFijiAustralia: 3 measured cities
Each dot is a measured city, coloured by its PM2.5 so far this year; tap a country to open it.
← Rangiora 10.8 WHO annual 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 Zealand49.7 Rangiora 10.8
Australia35.3 Melbourne 6.1

Worst cities

  1. 1RangioraCanterbury, New Zealand 542.2×
  2. 2TimaruCanterbury, New Zealand 542.1×
  3. 3ChristchurchCanterbury, New Zealand 491.8×
  4. 4Melbournelow-cost sensorsVictoria, Australia 341.2×
  5. 5Dunedinlow-cost sensorsOtago, New Zealand 311.1×
  6. 6Sydneylow-cost sensorsNew South Wales, Australia 291.1×
  7. 7Adelaidelow-cost sensorsSouth Australia, Australia 180.7×
All cities in the world
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

Updated 2026-10-02 05:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.