The Tokyo Electric Power Company (TEPCO) says a record high level of radioactive cesium in groundwater beneath Japan’s Fukushima No. 1 nuclear power plant has been discovered.
On February 13, TEPCO, which is the operator of the crippled nuclear plant, said that 37,000 becquerels of cesium-134 and 93,000 becquerels of cesium-137 were detected per liter of groundwater sampled from a monitoring well earlier in the day, Russia Today reported on Friday.
The samples were taken from the technical well that is located next to the second power unit, some 50 meters from the coast. The figures (the total reading) marked the highest of all the cesium measurements which had been taken previously.
Experts say radioactive water is possibly leaking from an underground tunnel located near the second power unit on the seashore.
However, the exact reason for such a significant rise in radioactive cesium content in the groundwater is not clear yet.
Japanese newspaper Asahi Shimbun has reported that the amount of radioactive chemicals appears to be increasing, as on February 12 the same well had given a combined cesium reading of 76,000 becquerels per liter.
Japan’s Nuclear Regulation Authority (NRA) had earlier criticized TEPCO for incorrectly measuring radiation levels in contaminated groundwater at the site.
TEPCO has also struggled to control the leaks at the Fukushima nuclear power plant since March 2011, but a massive amount of contaminated water has already leaked into the Pacific Ocean.
On March 11, 2011, a nine-magnitude earthquake triggered a tsunami that inflicted heavy damage on the six-reactor Fukushima plant. The cooling systems of the plant’s reactors were knocked out, leading to meltdowns and the release of radioactive material.
MR/HSN
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