Radioactive contamination from Japan's Fukushima Daiichi nuclear power plant hit by a tsunami in 2011 has drifted as far north as waters off a remote Alaska island in the Bering Strait, scientists said on Wednesday. Analysis of seawater collected last year near St. Lawrence Island revealed a slight
ANCHORAGE, Alaska - Radioactive contamination from Japan's Fukushima Daiichi nuclear power plant hit by a tsunami in 2011 has drifted as far north as waters off a remote Alaska island in the Bering Strait, scientists said on Wednesday.
The newly detected Fukushima radiation was minute. The level of cesium-137, a byproduct of nuclear fission, in seawater was just four-tenths as high as traces of the isotope naturally found in the Pacific Ocean. A 9.0-magnitude quake and tsunami in March 2011 triggered meltdowns at three of the Fukushima Daiichi plant's six reactors, spewing radiation into the air, soil and ocean and forcing 160,000 residents to flee.The results reported on Wednesday came from a long-term but small-scale testing program.
Until the most recent St. Lawrence Island sample was tested by the Woods Hole Oceanographic Institution, the only other known sign of Fukushima radiation in the Bering Sea was detected in 2014 by the National Oceanic and Atmospheric Administration.
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