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Monitoring of PM10 in New Zealand

Publication date:  August 2003
Publication reference number:  AQTR 40

This report provides a summary of the results of air quality monitoring of fine particules (PM10 - particles less than 10 micron in diameter) in New Zealand from 1988 to 2001. Historical measurements of total suspended particles (TSP) over the period 1964 - 2000 (Auckland) and 1983 - 2001 (Hamilton) are also presented to analyse trends.

The report highlights that PM10 concentrations frequently breach the Ministry for the Environment's ambient air quality guideline value of 50 µg/m3 (24 hour average) in many areas, both rural and urban.

Note: The graphs and images in this document are best printed out in colour.