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Impact of Arsenic from CCA-Treated Wood in Marine and Terrestrial Environments

Impact of Arsenic from CCA-Treated Wood in Marine and Terrestrial Environments A Collaborative Research between FIU and UM Supported by NIEHS-ARCH Program. Acknowledgments. FIU Myron Georgiadis Sheena Powell Szuri UM Dr. Helena Solo-Gabriele Bernine Khan. Goals.

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Impact of Arsenic from CCA-Treated Wood in Marine and Terrestrial Environments

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  1. Impact of Arsenic from CCA-Treated Wood in Marine and Terrestrial Environments A Collaborative Research between FIU and UM Supported by NIEHS-ARCH Program

  2. Acknowledgments • FIU • Myron Georgiadis • Sheena Powell Szuri • UM • Dr. Helena Solo-Gabriele • Bernine Khan

  3. Goals • To develop analytical techniques for arsenic speciation in leachate of CCA-treated wood and surrounding soils . • To develop an analytical procedure for arsenic speciation based on the partitioning of arsenic compounds between different molecular-weight fractions in leachate

  4. Effects of PO4 Concentration(PACS-2)

  5. Effects of PO4 Concentration(PACS-2)

  6. HG-AFS and ICP-MS Comparison

  7. Effects of Extraction Time(PACS-2)

  8. Effects of Extraction Time(PACS-2)

  9. Effects of Extraction Time(PACS-2 spiked with arsenite)

  10. Effects of Extraction Time(PACS-2 spiked with arsenite)

  11. Effects of EDTA(PACS-2 spiked with arsenite)

  12. Varying EDTA Concentration(PACS-2 spiked with arsenate)

  13. Everglades Soil SampleSpiked with Arsenite (2 mg/g)

  14. Everglades Soil SampleSpiked with Arsenate (4 mg/g)

  15. Equilibrium Dialysis Average Recovery by Molecular Weight Cutoff 3500 12000 MWCO

  16. Total Arsenic from two Leachates using two Molecular Weight Cutoff Sizes after 24 hour Dialysis. Leachate 2 Leachate 1 Leachate 1 500 500 12000

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