The estimated radiation exposure for local fisherman in coastal areas, and for people who regularly consume seafood from the region was much less than 1 millisievert, an annual dose considered safe, TEPCO said. The simulation showed a slight rise in tritium levels within 2-3 kilometers (1.2-1.8 miles) from the plant, TEPCO official Junichi Matsumoto said. Controlled release of tritium from normal nuclear plants is a routine global practice, officials say. Government and TEPCO officials say tritium, which is not harmful in small amounts, cannot be removed from the contaminated water, but all other isotopes selected for treatment can be reduced to safe levels. Above, the Pacific is seen behind nuclear reactor units at the Fukushima plant in Okuma, Fukushima prefecture, northeastern Japan, on February 27, 2021. nuclear agency arrived in Japan on Monday to assess preparations for the release into the Pacific Ocean of treated radioactive water from the wrecked Fukushima Daiichi nuclear power plant. Some experts said the long-term impact on marine life from low-dose exposure is still unknown.įor more reporting from the Associated Press, see below.Ī team from the U.N. The plan has been strongly opposed by neighboring China and South Korea and Japan's residents and fishermen. Exposure to radioactivity was significantly lower than the maximum safe levels set by international organizations, it said. TEPCO plans to send the water through an undersea tunnel and discharge it about 0.6 miles from the coastal power plant after treating and diluting it with large amounts of seawater.Īccording to the simulation, radiation levels of seawater temporarily increased slightly but quickly fell to normal levels, TEPCO said. The plant's operator said that according to a data simulation, its planned release will cause little impact. The Japanese government and the plant's operator, Tokyo Electric Power Company Holdings (TEPCO), said they will start to gradually release the treated radioactive water in the spring of 2023 so the storage tanks at the plant can be removed to make room for facilities needed for its decommissioning. The water has been stored in about 1,000 tanks that the operator said will reach their capacity late next year. The damage caused a large amount of contaminated cooling water to leak. The operator of the Fukushima nuclear power plant said Wednesday that treated radioactive water released into the sea would have an extremely small impact on the environment, marine life and humans, the Associated Press reported.Ī massive earthquake that triggered a tsunami in 2011 severely damaged three reactors at the Fukushima Daiichi plant on Japan's Pacific coast.
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