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Auckland air quality report December2021

Louis Boamponsem, Auckland Council Research and Evaluation Unit, RIMU
Auckland Council Research and Evaluation Unit, RIMU
Publication date:  



Auckland Council continuously collects air quality data to assess compliance with national standards and provide information to aid policy development and evaluation. The data the council collects enables us to quantify ambient air quality in the region and note spatial and temporal variations.

This report presents a monthly update on air quality in Auckland. It has three sections: sections A and B present tables and graphics illustrating air quality status in the Auckland region based on the data collected from continuous monitoring sites across the region. For this edition, section C focuses on one monitoring site  ̶  Papatoetoe. The monthly update is prepared using validated data which is generally available one month after raw data is collected. This update covers data to October 31.


  • No breach of national air quality standards has occurred this year (January to October).
  • Overall, air quality has slightly improved in Auckland over the last two years. A key contributor has been the COVID-19 restrictions.
  • The highest monthly concentrations of air contaminants this year were found at Queen St and Customs St.
  • Over the past two years, there has been a downward trend in nitrogen dioxide (NO2) concentration in the Auckland city centre. This was also mainly due to COVID-19 restrictions. ...

Read the frequently asked questions about the air quality monitoring in the Auckland region.

For more information or questions, please send inquiries to:

Auckland Council, December 2021