Toenail arsenic : Incorporation patterns and biomarker potential
- Authors: Dowling, Kim , Pearce, Dora , Gerson, Andrea , Sim, Malcolm , Sutton, Stephen , Newville, Matthew
- Date: 2008
- Type: Text , Conference paper
- Relation: Paper presented at 3rd Conference on Developments in Victorian Geology and Mineralisation, Melbourne : 3rd-4th February 2008
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Arsenic microdistribution and speciation in toenail clippings of children living in a historic gold mining area
- Authors: Pearce, Dora , Dowling, Kim , Gerson, Andrea , Sim, Malcolm , Sutton, Stephen , Newville, Matthew , Russell, Robert , McOrist, Gordon
- Date: 2010
- Type: Text , Journal article
- Relation: Science of the Total Environment Vol. 408, no. 12 (2010), p. 2590-2599
- Full Text:
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- Description: Arsenic is naturally associated with gold mineralisation and elevated in some soils and mine waste around historical gold mining activity in Victoria, Australia. To explore uptake, arsenic concentrations in children's toenail clippings and household soils were measured, and the microdistribution and speciation of arsenic in situ in toenail clipping thin sections investigated using synchrotron-based X-ray microprobe techniques. The ability to differentiate exogenous arsenic was explored by investigating surface contamination on cleaned clippings using depth profiling, and direct diffusion of arsenic into incubated clippings. Total arsenic concentrations ranged from 0.15 to 2.1