| Project Title |  |
| Project
A2: in situ solid state chemical speciation of some metal pollutants
associated with ground level particulate matter.
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| Research Team | |
| Dr.
M. Lamoureux, St. Mary’s Univiversity. Email: marc.lamoureux@stmarys.ca Tel: 902-420-5652 C. Grégoire,
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| Project Summary | |
| The objective is to develop methods for chemical speciation of metal pollutants associated with ground level particulate matter. A method for the analysis of particulate matter has been developed which does not require digestion of collection substrate for subsequent analysis using ultrasonic slurry sampling (USS) directly coupled with either graphite furnace atomic absorption spectrometry (GFAAS) or inductively coupled plasma mass spectrometry (ICP-MS). Pb, Cu and Ni have been determined as a function of particulate size for different collection periods without any sample digestion. Extended x-ray absorption fine structure (EXAFS) spectroscopy has been shown to be suitable for the determination of in situ solid-state chemical speciation of some metal-containing particulate matter as a function of particulate size. Results show that both methods are conceptually plausible. | |