Capital city, New Zealand
Air quality in Wellington
5PM2.5 µg/m³, yearly
Meets the WHO guideline
The annual average PM2.5 in Wellington was 5 µg/m³ in 2023, about 1.0 times the WHO guideline of 5 µg/m³.
Key facts
- PM2.5: 5 µg/m³ yearly average (2023). Measured at Wellington.
- PM10: 13 µg/m³ (2023).
- Nitrogen dioxide: 10 µg/m³ (2023), mostly from traffic.
- Recent average: 6.8 µg/m³ over the last five years of measurements.
PM2.5 by year
| Year | Annual average |
|---|---|
| 2023 | |
| 2022 | |
| 2020 | |
| 2019 | |
| 2018 | |
| 2017 |
Air quality across New Zealand
| Place | PM2.5 | Level |
|---|---|---|
| Wellington | 5 µg/m³ | Meets the WHO guideline |
| Auckland | 6 µg/m³ | Fairly clean |
| Rotorua | 7.5 µg/m³ | Fairly clean |
| Taupo | 9 µg/m³ | Fairly clean |
| Queenstown | 10 µg/m³ | Fairly clean |
| Christchurch | 10 µg/m³ | Fairly clean |
Quick answers
Is the air in Wellington bad?
Meets the WHO guideline: 5 µg/m³ of PM2.5 on average, 1.0× the WHO guideline.
How does Wellington compare with the rest of New Zealand?
People in New Zealand breathe 7 µg/m³ of PM2.5 on average (2023, World Bank/WHO), against 5 µg/m³ measured here.
More about Wellington
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Sources
- WHO Ambient Air Quality Database
- WHO air quality guidelines (2021)
- Live air quality map (WAQI)
- Metlink Wellington
- Wellington Airport
- WellingtonNZ
Annual averages are measured values reported to the WHO; check a live map for today's air. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.