Part 2: Stabilization/Containment of Radiological Particle Contamination to Enhance First Responder, Early Phase Worker, and Public Safety

The application of stabilization technologies to a radiologically contaminated surface has the potential for reducing spread contamination and, as result, decreasing worker exposure radiation. Three technologies, calcium chloride (CaCl2), flame retardant Phos-Chek® MVP-Fx, and Soil2OTM were investigated evaluate their ability reduce resuspension tracking radiological during response activities such vehicle foot traffic. Concrete pavers, asphalt sandy soil walking paths used test surfaces, along with simulated fallout material (SFM) tagged radiostrontium (Sr-85) applied contaminant. Radiological measured using gamma spectrometry before after operation traffic experiments, conducted each technology without nonstabilized control. These measurements acquired separately combination vehicle/foot experiment. resulting data describes extent SFM removed from onto tires or boots, transferred adjacent residual remaining on boots type actions influenced results. For instance, when walked over, less than 2% particles concrete, 4% asphalt, 40% sand surface. By contrast, ~40% again sand, but 7% 15% concrete respectively. In most cases, did provide improved stabilization. improvement was related surface, actions, stabilizer; statistical analysis these variables is presented. Overall, results suggest an utilize planning implementation involving addition, aerosolizable range monitored path all stabilizing agents decreased radioactivity, decrease being 3 fold, whereas CaCl2 Phos-Chek MVP-Fx surfaces generated no detectable radioactivity. that availability respirable by workers under conditions.