TEPCO is using a robot to traverse the Unit #1 reactor looking for leaks. It has found its first leak, close to the lower part of the Reactor 1
containment vessel at the wrecked Fukushima Daiichi on Wednesday.
The camera spotted two leaks from the reactor into the containment building.
Radiation levels near the leaks were measured at 0.9 to 1.8 sieverts an hour - whereas a typical release of radiation
is generally accepted to be 1 millisievert a year. In other words the radiation level is off the charts compared to normal radiation releases. However that radiation release is occurring inside the containment building.
However it's demonstrating that the containment vessel is cracked - which is to be expected.
Source: http://www3.nhk.or.jp/news/html/20131114/k10013066251000.html
Source: http://rt.com/news/fukushima-robot-detect-radiation-729/
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