Davy, P.K.; Trompetter, W.J.; Markwitz, A. 2011 Source apportionment of airborne particles at Dunedin. GNS Science consultancy report 2011/131. 82 p. doi: 10.21420/Z4E9-8294
Abstract:
A receptor modelling study of air particulate matter samples from an ambient air quality monitoring site on Albany Street, Dunedin was undertaken to provide information for Otago Regional Council’s air quality management responsibilities. One hundred and two each of PM2.5 and PM10-2.5 filters were analysed to determine elemental concentrations and provide the basis for apportioning airborne particle mass concentrations to various sources. The source apportionment analysis identified primary contributors to ambient concentrations of particulate matter as measured at the site. The key results are: 1. Crustal matter, marine aerosol and a source identified as arising from construction combined with fertiliser (manufacturing or handling) activities were the primary source contributors to PM10-2.5 ; 2. Biomass burning was the significant contributor to high PM2.5 concentrations during the monitoring period and the source responsible for exceedances of the PM2.5 ambient air quality monitoring guideline; 3. Coarse particle sources were primarily responsible for PM10 concentrations that exceeded the PM10 National Environmental Standard (NES). (auth)
Permission granted September 2020 from Otago Regional Council to make the report and data public.
