This fails, however, to take into account the longer half-lives of other isotopes like cesium-137. Hidehiko Nishiyama, spokesperson for the Nuclear Safety and Industrial Agency, admitted at the time: “We must keep putting water into the reactors to cool to prevent further fuel damage, even though we know that there is a side-effect, which is the leakage.” This led to 10,000t of contaminated water – at 500 times the legal limit for radioactivity – being dumped into the ocean in April in an effort to contain even more toxic water. According to early reports, Tokyo Electric Power Company (TEPCO) attempted to cool damaged reactors by filling the reactor containment vessels with water leaking from the core, but radioactive water pouring out of the reactors was pooling around the complex, hampering recovery attempts. Radiation levels in the ocean surrounding Fukushima have been reported as being as much as 6,500 times the legal limit. Meanwhile, over half a million households in the Fukushima area continue to struggle without access to water.
Sign up here for GlobalData's free bi-weekly Covid-19 report on the latest information your industry needs to know.Īlthough Japanese authorities have looked to prevent the spread of radiation in the country’s water systems and the ocean surrounding the Fukushima Daiichi plant, radiation has been found in tap water in the capital, Tokyo, over 120 miles away.
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