![]() West Coast from Washington state to California. ![]() Buesseler said he expects similar low cesium levels to gradually reach other North American shores, possibly extending along the U.S. It was the world's worst nuclear disaster since Chernobyl in 1986. In March 2011, an earthquake and tsunami struck the Fukushima nuclear plant, 130 miles (209 km) northeast of Tokyo, sparking triple nuclear meltdowns, forcing more than 160,000 residents to flee from nearby towns, and contaminating water, food and air. For example, swimming in the Vancouver Island water every day for a year would provide a dose of radiation less than a thousand times smaller than a single dental X-ray, Woods Hole said. ![]() The levels the group detected are extremely low. "Radioactivity can be dangerous, and we should be carefully monitoring the oceans after what is certainly the largest accidental release of radioactive contaminants to the oceans in history," Buesseler said in a statement. 19 off the coast of Ucluelet, a small town on Vancouver Island in Canada's British Columbia, said Woods Hole Oceanographic Institution scientist Ken Buesseler. Trace amounts of Cesium-134 and Cesium-137 were detected in samples collected ON Feb. (Reuters) - Radiation from Japan's 2011 Fukushima nuclear disaster has for the first time been detected along a North American shoreline, though at levels too low to pose a significant threat to human or marine life, scientists said on Monday.
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