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

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.

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

Method Development (Phase I)

Leaching Experiments (Phase I) Samples – CCA-Treated wood (4, 9.6, 40 kg/m 3, weathered wood) – Untreated Southern Yellow Pine Solvents – De-ionized Water – Rain Water – Ocean Water – Simulated Rain Water (SPLP) – Simulated Landfill Leachate (TCLP)

Leaching Experiments (Phase I) Samples – CCA-Treated wood (4, 9.6, 40 kg/m 3, weathered wood) – Untreated Southern Yellow Pine Solvents – De-ionized Water – Rain Water – Ocean Water – Simulated Rain Water (SPLP) – Simulated Landfill Leachate (TCLP)    

Deck Sampling (Phase II) CCA-Treated Untreated SYP

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

A Second Set of Deck Experiments

All Four Decks Complete

Tubs that decks will go in to catch leachate

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.

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.