Radioactive Sulfur Leaked From Japan Traveled to California: UCSD Scientists

For the first time, the amount of radiation leaked from the Fukushima nuclear meltdown in March was measured by a team of researchers. And the results show that tiny amounts of radioactive sulfur reached California in the weeks following the meltdown.

The amount of radioactive sulfur that arrived on the wind in California between March 22 and April 1 was tiny, and in fact "almost nothing," according to Mark Thiemens, a professor of chemistry at the University of California, San Diego.