Source Apportionment of Heavy Metals in Air Particulate Matter Using Automated Electron Probe Micro Analysis
Source apportionment of air particulate matter, using receptor models recommended by the Environmental Protection Agency, USA, are not well adapted for situations with a complex source composition because of the inherent inability to resolve chemically equivalent sources. Alternatively, methods allowing the analysis of single particles such as electron probe micro analysis (EPMA) provide direct information on chemical composition and morphology for each individual particle and thus, in the most optimal situations for each individual source. It has therefore been suggested to use these methods to provide information in addition to that obtained in the analysis of bulk samples1.
KeywordsSuspended Particulate Matter Source Apportionment Soil Dust Zinc Smelter Coarse Mode Particle
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