Arsenic Mass Balance: Florida. Purpose  Determine the relative magnitude of arsenic from CCA-treated wood versus the amounts from other arsenic sources.

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Presentation transcript:

Arsenic Mass Balance: Florida

Purpose  Determine the relative magnitude of arsenic from CCA-treated wood versus the amounts from other arsenic sources  Evaluate arsenic inputs, outputs, and reservoirs

Inputs  CCA-treated Wood  MSMA (Monosodium Methylarsonate) a Herbicide/Pesticide  Coal and Petroleum  Biosolids from Wastewater Treatment  Fish and Shellfish  Rainfall and Rivers

Outputs  Fertilizer  Air Emissions from Incinerator Facilities  Treated Wastewater  River Outflow

Reservoirs  CCA-treated Wood  Groundwater  Surface Water  Surface Soil  Specific Contaminated Areas?

Preliminary Results to Date

Inputs Conc.Metric tons As/yr CCA-Treated Wood 3,300 mg/kg1,600 MSMA Agriculture Golf Courses 9 Coal4.4 mg/kg110 Petroleum0.10 mg/kg5 Biosolids5.9 mg/kg5 Fish5.7 mg/kg0.2 Shellfish6.5 mg/kg0.4 Rainwater0.13 ug/L15 Rivers3.0 ug/L68 Filled Boxes Need to Be Checked

Outputs Filled Boxes Need to Be Checked Conc.Metric tons As/yr Fertilizer7 mg/kg200 Incinerator Emissions Treated Wastewater 2.1 ug/L River Outflow3.0 ug/L130 CCA Input 3300 mg/kg 1600

Reservoirs Conc.Metric tons As CCA-Treated Wood 3,300 mg/kg Leachate: 5000 ug/L 31,400 Groundwater2.0 ug/L3,150 Surface Water3.6 ug/L113 Surface Soil, 1”0.42 mg/kg2,500 Golf Courses69 mg/kg3,900

Questions?