1 / 16

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.

siran
Download Presentation

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

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  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

More Related