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Funded through Florida International University

Funded through Florida International University National Institute for Environmental Health Sciences. Impacts from CCA-Treated Wood Within Marine and Terrestrial Environments. Specific Aims.

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Funded through Florida International University

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  1. Funded through Florida International University National Institute for Environmental Health Sciences Impacts from CCA-Treated Wood Within Marine and Terrestrial Environments

  2. Specific Aims • Evaluate the impacts of arsenic from CCA-treated wood by measuring the species of arsenic that are leached from different environmental samples. • Develop methods for arsenic speciation in the particulate phase.

  3. Research Design and Methods • Laboratory Evaluation (Phase I) • Method Development • Leaching Experiments • Data Evaluation • Field Evaluation (Phase II) • Deck Sampling • Marine Dock Sampling • Data Evaluation

  4. Method Development (Phase I)

  5. Leaching Experiments (Phase I) • Samples • CCA-Treated wood (4, 9.6, 40 kg/m3 ,weathered wood) • Untreated Southern Yellow Pine • Solvents • De-ionized Water • Rain Water • Ocean Water • Simulated Rain Water (SPLP) • Simulated Landfill Leachate (TCLP)

  6. Leaching Experiments (Phase I)  • Samples • CCA-Treated wood (4, 9.6, 40 kg/m3 ,weathered wood) • Untreated Southern Yellow Pine • Solvents • De-ionized Water • Rain Water • Ocean Water • Simulated Rain Water (SPLP) • Simulated Landfill Leachate (TCLP)   

  7. Deck Sampling (Phase II) Untreated SYP CCA-Treated

  8. Deck Sampling (Phase II) Runoff Sampler Deck Native Soil Leachate Collection System Perforated Pipe

  9. A Second Set of Deck Experiments

  10. All Four Decks Complete

  11. Tubs that decks will go in to catch leachate

  12. Marine Dock Sampling (Phase II) • Collect water, sediment & Marine Organism Samples from CCA-Treated Docks. • Collect Controls in Near Vicinity in Areas with Minimal Impacts from CCA-Treated Wood.

  13. Anticipated Benefits • Results can be used for environmental risk models to evaluate the probability of human disease or other environmental outcome associated with the use or disposal of CCA-treated wood. • Expand ability to speciate environmental samples.

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