| Project Title |  |
| Project
A3: Chemical speciation of metals in atmospheric wet deposition and multi-element
content of wet and dry precipations.
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| Research Team | |
| A. Chatt,
Dalhousie University. Email: a.chatt@DAL.ca Tel: 902-494-2474
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| Project Summary | |
| Although trace element signatures and elemental ratios have been used for source identification, research is practically non-existent for the use of the ratios of As, Se, and Sb species in wet deposition to locate pollutant sources. A preconcentration method is being developed for the simultaneous determinations of selected trace elements in wet deposition, and a method for the identification of various species of arsenic in samples of wet deposition. Methods developed include preconcentration of samples to be analyzed using NAA, as well as a solid phase extraction method for the isolation of organically bound As. These methods will be applied for the determination of various As species in wet deposition samples from the Sudbury sites. | |