Chart showing where various radionuclides concentrate in human body (see link at right for larger sized chart)A post at Forbes.com reports that researchers at University of California-San Diego detected significantly increased concentrations of radioactive Sulfur-35 in air, which they concluded had blown to California from the Fukushima Daiichi meltdowns. Radioactive Sulfur-35 is known to concentrate in human testicles. A chart of radionuclides shows where other radioactive toxins concentrate in the human body. While an L.A. Times post downplays the health significance of the radioactive Sulfur-35 fallout for Californians, the same Forbes reporter earlier wrote about the debate on such fallout's health risks. After all, the BEIR 7 report reaffirmed that any exposure to radioactivity, no matter how small, still carries a health risk. That is, there is no "safe" level of exposure to radioactivity.