The water seeping into a trench outside the Number two reactor at Fukushima Daiichi nuclear plant in northeast Japan had a radiation level of more than 1,000 millisieverts per hou

The water seeping into a trench outside the Number two reactor at Fukushima Daiichi nuclear plant in northeast Japan had a radiation level of more than 1,000 millisieverts per hour.
Such a high level can cause temporary radiation sickness including nausea and vomiting and far exceeds the 100 millisievert per hour which is generally regarded the lowest amount at which cancer risks are apparent.
Officials at Tokyo Electric Power Co (TEPCO) are now attempting to locate the source of the leak, which is near the turbine building of the Number 2 reactor and around 180 feet from the sea.
"The trench is located outside the building and the water contains radioactive materials," Hiro Hasegawa, a spokesman for TEPCO, told The Daily Telegraph.
"There is normally no water found in this area so it is difficult to compare this to normal levels.