Extract:

Summary

• No breach of national air quality standards occurred in October 2023.
• The Customs Street city centre site recorded the highest levels of NO₂ and SO₂ concentrations in October.
• The average NO₂ concentration recorded within the first 10 months of this year at the Customs Street site is 16% lower than the same period for the previous year. It is unclear what caused the decrease in the recorded NO₂ levels at this site.

It is important to note that air quality at a monitoring site can vary from year to year due to weather and other influences (See Auckland air quality report, October 2021). For a brief short-term trend analysis of key pollutants concentration changes, please see Table 2.

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Where to view our data

Data can be viewed on the environmental data portal, the LAWA website LAWA or requested from environmentaldata@aucklandcouncil.govt.nz

Full state and trends analyses and reports are prepared every few years (the most recent report is Trends in Auckland’s air quality 2006-2018).

The 2022 Annual data report is available on the Knowledge Auckland website.

See also, the frequently asked questions about the Auckland air quality monitoring programme.

This edition includes a focus on the Customs Street air quality monitoring site.

Auckland Council, November 2023

Previous reports

October

September

August

July

June

May

April

March

2022 reports (selected)

October

November

December