Seaborne radiation from Japan’s Fukushima nuclear disaster has been detected in seawater samples taken from Tillamook Bay and Gold Beach in Oregon, researchers from the Woods Hole Oceanographic Institution have announced. 
The institution’s chemical oceanographer, Ken Buesseler, has been tracking the radiation plume in a crowd-funded effort “to monitor the ongoing spread of radiation across the Pacific and its evolving impacts on the ocean,” the institution’s website states.
The researchers say they know the radiation, cesium-134, had to come from Fukushima because of its short half-life. 
The isotope was also detected in November in a Canadian sockeye salmon sampled from Okanagan Lake in the summer of 2015, the Fukushima InFORM project said. The level detected was more than 1,000 times lower than…