Abstract
Abstract The concentrations of 21 soluble trace elements deposited in urban snow collected during 1979 on the island of Montreal have been measured using three different methods: proton-induced X-ray emission (PIXE), graphite-furnace atomic absorption spectroscopy (AAS) and instrumental neutron activation analysis (INAA). A comparison of the results obtained with these three techniques used for both independent and comparative measurements, clearly show the reliability of PIXE in multi-elemental analyses of aqueous environmental samples. The results reported here constitute a more comprehensive analytical study of atmospheric deposition through snow than has been previously reported.
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