Risk Characterization for Future Training Scenarios at the Massachusetts Military Reservation (MMR), Final Results

TL;DRAbstract

This study was conducted to evaluate potential human and ecological health risks associated with emission of pyrotechnic compounds during future training exercises at the Massachusetts Military Reservation. Air dispersion modeling was used to determine air concentrations and deposition rates for emissions. Annual average and spatially averaged air concentrations and deposition rates were used to perform the risk assessments. The Army Risk Assessment Modeling System (ARAMS) was used to conduct the human health risk assessment, which evaluated a site visitor or trespasser exposed to air and soil using air concentrations and deposition rates from the air dispersion modeling. ARAMS was also used to evaluate the time for deposited compounds to reach groundwater and the peak concentration upon contact with the water table. Of the 24 compounds evaluated, only Cr(VI), with an incremental cancer risk of 2.4 x 10(exp -6), posed a potential concern for human health with the maximum exposure and e

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