Most polluted cities in Oceania
0 of 7 measured cities in 2 countries were above the WHO 24-hour guideline over the last 24 hours. The worst was Rangiora, New Zealand, at 8.7 µg/m³.
← Rangiora 8.7
WHO 24-hour guideline
Countries
| Country | Cities | Median | Cities by band |
|---|---|---|---|
| New Zealand | 4 | 6.4 | |
| Australia | 3 | 2.1 |
Worst cities
- 1RangioraCanterbury, New Zealand 8.70.6×
- 2TimaruCanterbury, New Zealand 6.70.4×
- 3ChristchurchCanterbury, New Zealand 6.10.4×
- 4Melbournelow-cost sensorsVictoria, Australia 2.50.2×
- 5Dunedinlow-cost sensorsOtago, New Zealand 2.20.1×
- 6Sydneylow-cost sensorsNew South Wales, Australia 2.10.1×
- 7Adelaidelow-cost sensorsSouth Australia, Australia 1.70.1×
Good0–5
Fair6–15
Moderate16–50
Poor51–90
Very poor91–140
Extremely poor141+
The European Environment Agency's air quality index bands for PM2.5 (2024 revision); it has bands, not numbers, so values stay in µg/m³. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
Updated 2026-10-02 04:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors in µg/m³.