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Fukushima contaminants found as far north as Alaska’s Bering Strait via Reuters

ANCHORAGE, Alaska (Reuters) – 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 elevation in levels of radioactive cesium-137 attributable to the Fukushima disaster, the University of Alaska Fairbanks Sea Grant program said.


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. 

Those levels are far too low to pose a health concern, an important point for people living on the Bering Sea coast who subsist on food caught in the ocean, Sheffield said. 

Cesium-137 levels some 3,000-times higher than those found in the Bering Sea are considered safe for human consumption under U.S. Environmental Protection Agency drinking water standards, officials said. 


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. 

NOAA scientists found trace amounts of Fukushima-linked radionuclides in muscle tissue of fur seals on Alaska’s St. Paul Island in the southern Bering Sea. There was no testing of the water there, Sheffield said. 

The people of St. Lawrence Island, who live well to the north of St. Paul Island, had expected Fukushima radionuclides to arrive eventually, she said. 

“They fully anticipated getting it. They didn’t know when,” she said. “The way the currents work does bring the water up from the south.”

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