Radioactive Tornadic Storms in Saint Louis Missouri on April 22, 2011
The radiation fallout sample was taken via a paper towel wipe of the hood and windshield of my SUV. The sample maxed out at 0.100 mR/hr, roughly 10x background radiation. The water droplets absorbed in the towel tended to vary in their radioactivity. The radionuclides appeared less drawn to particulate than in samples from previous days. Concurrently, the level of radioactivity in this sample was mostly a function of the quantity of water absorbed in the towel. Given that this was the third strong storm of the day, the potential of Radon Daughter washout is significantly reduced.