Auckland air emissions inventory 2004

Jayne Metcalfe, Gavin Fisher, Micah Sherman, Gerda Kuschel, Endpoint Ltd
Auckland Regional Council
Publication date:

This inventory estimates the emissions to air in the Auckland region from four major sectors (transport, domestic, industry and biogenic) with emphasis on emissions of four key ambient air pollutants (PM10, NOx, CO, VOCs), assuming a base year of 2004.

Emissions are broken down:

  • sectorally (for the four major categories)
  • spatially (for the entire region versus the urban area only), and
  • seasonally (for a typical winter’s day versus a typical summer’s day).

An Auckland Air Emissions Inventory was first prepared in 1993. An upgrade of the emissions inventory commenced in 1998 undertaken by the Environment Protection Authority of Victoria. This report updates the 1998 inventory to produce air emissions estimates for 1993, 2004, 2011 and 2021.

Emissions are estimated for fine particles (PM10), oxides of nitrogen (NOx), carbon monoxide (CO), volatile organic compounds (VOCs), sulphur dioxide (SO2) and carbon dioxide (CO2). This report focuses primarily on PM10 because ambient concentrations measured in Auckland have exceeded the National Environmental Standard (NES) of 50μg m-3 at both peak traffic and urban monitoring sites. PM10 is considered a surrogate for health impacts from all air pollutants.

Auckland Regional Council technical publication TP292

Last updated: 2018-09-10