Air Domain Report - Contribution to PM10 at selected locations 2000-2012

Ministry for the Environment


Note: PM10 concentrations are given in micrograms per cubic metre of air, or µg/m3.

Source: Institute of Geological and Nuclear Sciences. Regional councils of Wellington, Hawke's Bay; Nelson City Council; Marlborough District Council, Otago; Auckland Council

From 2014 Air domain report for the Ministry for the Environment by Statistics New Zealand

Case study: Contribution of natural sources to PM10 concentrations

Related topic: Emissions from natural sources (pressure)

Case study definition: For selected monitoring sites, this case study presents the natural and anthropogenic (human-made) components of total annual PM10 concentrations.

Background: Natural sources (eg sea salt, dust, bushfires, volcanoes, pollens, and other biogenic material) can contribute to the presence of air pollutants. However, the contributions of air pollutants from natural sources are expected to remain relatively stable in the absence of significant natural events, such as large volcanic eruptions or bushfires.

While impacts from PM10 include the effects of natural and anthropogenic (human-made) sources, the contribution of natural sources to PM10 concentrations is beyond the control of management or abatement strategies.

Presentation of case study components: Annual average concentrations of PM10 (micrograms per cubic metre), for sites which have conducted source apportionment studies, by:
natural sources
anthropogenic (human-made) sources.

Methodology: Uses information from source apportionment studies conducted over time. Source apportionment studies analyse the particles collected at some monitoring stations.

Source apportionment studies have been conducted at many sites in New Zealand. This case study uses the results from these studies where the results are considered to be representative of that site (at least one year of monitoring).

See NIWA’s Indicators for Environmental Domain Reporting report for more information. The values used for this case study are those used for the health impacts indicator, as outlined in appendix B of NIWA’s report.

Data coverage:
Blenheim (2006–07)

Nelson (2006–12)

Masterton (2002–04)

Tahunanui (2008–09)

Hastings (2006–07)

Upper Hutt (2000–02)

Dunedin (2010)

Wainuiomata (2011–12)

Kingsland, Auckland (2004–07)

Henderson, Auckland (2006–12)

Penrose, Auckland (2006–12)

Takapuna, Auckland (2006–12)

Khyber Pass, Auckland (2006–12)

Queen Street, Auckland (2006–12)
More information is needed before a national average can be compiled.

Data source: Source apportionment data and analysis provided by GNS Science

Limitations to data and analysis, including level of confidence: The data accurately represents the monitoring site but are not nationally representative.

Changes to time series: The data covers different time periods for different sites.


Detailed definitions can be found here:

Data provided by

Ministry for the Environment

Dataset name

Environmental Reporting: Air Domain Report 2014


How to find the data

At URL provided, download 'Excel files'

Import & extraction details

File as imported: Environmental Reporting: Air Domain Report 2014

From the dataset Environmental Reporting: Air Domain Report 2014, this data was extracted:

  • Sheet: Table 18
  • Range: C10:D23
  • Provided: 28 data points

Dataset originally released on:

May 16, 2014

Purpose of collection

The Ministry for the Environment and Statistics New Zealand commissioned NIWA to produce a report that provides information for New Zealand’s Environmental Reporting Series: 2014 Air domain report. This report provides the methodology and results for the national air domain indicators – on-road vehicle emissions, annual average PM10, and health impacts due to exposure to PM10. It also includes information on natural sources of pollutants, and the influence of meteorological conditions on air quality.