This Department of Fisheries and Oceans map shows the surface water distribution of cesium-137 from Fukushima in 2012, when the main inventory of radioactivity had moved toward the central North Pacific. The plume is expected to shift almost entirely to North America’s west coast during the next five years. Fukushima radiation was detected in B.C. coastal waters in June 2013.
“According to our observations, the radiation from Fukushima was detected in B.C. coastal waters in June 2013. Barely detectable, but detectable,” Brown said.