Oh God no!! Not RADIOACTIVE Thorium!!!
Detectable levels of tritium have caused heart ache for power plants with detectable levels below release limits to put this in perspective release limit in air for tritium is 1E-7 uc/ml, thorium-232 is 4E-15 uc/ml and thorium 230 is 2E-14 uc/ml. Plutonium-239 is 2E-14. I worked a DOE project that cleaned up an old thorium warehouse it was normal to see hundreds of DAC and occasionally thousands, the filter from the continuous air monitor read an mr or two and up to a rad beta at the end of the day.
In the public arena such as this though even with very low amounts the problem becomes perception of risk by the public wether tritium or iodine from a power plant or thorium from DOE weapons process.
