Page content Page content Section navigation Topic navigation Accessibility keys Sitemap Search Contact us www.govt.nz portal
Go to Waikato Regional Council homepage
search icon mail icon contact us icon

  Services » Publications » Technical Reports » tr201234

Air emission inventory - Hamilton and Tokoroa 2012

On this page: abstract, table of contents

Report: TR 2012/34

Author: E Wilton (Environet Ltd)

Abstract

In New Zealand the main air contaminant of concern in urban areas is PM10

In the Waikato, concentrations of PM10 breach the National Environmental Standard ( 50 μg m-3 – 24-hour average with one allowable exceedence per year) in Tokoroa.  The areas of Hamilton, Putaruru, Taupo and Te Kuiti are all marginal with respect to NES compliance, with each of these areas recording one exceedence of 50 μg m-3 in 2011.

This report primarily focuses on emissions of particles (PM10) from domestic heating, motor vehicles, industrial and commercial activities and outdoor burning. Other contaminants included in this emission inventory are carbon monoxide, nitrogen oxides, sulphur oxides volatile organic compounds, carbon dioxide, benzene and benzo(a)pyrene.

Previous emission inventories in 2001 and 2005 for Hamilton have been conducted and in 2004 and 2007 for Tokoroa.

Air emission inventory - Hamilton and Tokoroa 2012 (1 mb)

Table of contents

1 Introduction 1
2 Inventory design 2
2.1 Selection of sources 2
2.2 Selection of contaminants 2
2.3 Selection of areas 3
2.4 Temporal distribution 6
3 Domestic heating 7
3.1 Methodology 7
3.2 Home heating methods 9
3.2.1 Hamilton 9
3.2.2 Tokoroa 10
3.3 Emissions from domestic heating 11
3.3.1 Hamilton 11
3.3.2 Tokoroa 16
4 Motor vehicles 21
4.1 Motor vehicle emissions 24
4.2 Hamilton 24
4.3 Tokoroa 24
5 Industrial and commercial 25
5.1 Methodology 25
5.2 Industrial and commercial emissions 26
5.3 Hamilton 26
5.4 Tokoroa 27
6 Outdoor burning 28
6.1 Methodology 28
6.2 Hamilton 29
6.3 Tokoroa 29
7 Other sources of emissions 31
8 Total emissions 32
8.1 Hamilton 32
8.1.1 Comparison to 2005 emission estimates 37
8.2 Tokoroa 37
8.2.1 Comparison to 2007 emission estimates 42
  References 43
  Appendix A: Home heating questionnaire 44
  Appendix B: Emission factors for domestic heating 49
About this site     Contact us     Feedback and complaints New Zealand Government