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 FIU  Myron Georgiadis  Sheena Powell Szuri UM 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 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 leachateTo develop an analytical procedure for arsenic speciation based on the partitioning of arsenic compounds between different molecular-weight fractions in leachate

4. Effects of PO 4 Concentration (PACS-2)

6. HG-AFS and ICP-MS Comparison

7. Effects of Extraction Time (PACS-2)

9. 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 Sample Spiked with Arsenite (2  g/g)

14. Everglades Soil Sample Spiked with Arsenate (4  g/g)

15. 350012000 MWCO Equilibrium Dialysis Average Recovery by Molecular Weight Cutoff

16. 50012000500 Total Arsenic from two Leachates using two Molecular Weight Cutoff Sizes after 24 hour Dialysis. Leachate 1 Leachate 2