Our air 2021

Access the indicators for Our air 2021 (Stats NZ).

Access the datasets from Our air 2021 (MfE Data Service).

Correction: 6 June 2023

We have corrected content and five figures throughout the report which cite trend data from Stats NZ air indicators. We have also corrected rounding errors for content relating to PM₁₀ state. In October 2022, Stats NZ updated the trend methodology for the following air indicators: Carbon monoxide concentrations, Ground-level ozone concentrations, Sulphur dioxide concentrations, Nitrogen dioxide concentrations, PM₁₀ concentrations,  and PM_2.5 concentrations. Therefore, we are updating the related data in this report to ensure consistency with those indicators.