Wednesday, March 30, 2011

Plutonium Detected in the Soil Near Fukushima Reactor

. Wednesday, March 30, 2011

Tokyo Electric Power Co. (Tepco), the operator of the Fukushima reactors, said that plutonium has been detected in soil at five locations at the Fukushima nuclear power plant, Monday. The level of plutonium detected is ''not significant.'' The dose is not threaten human health. Source of the leak of plutonium is still mysterious and still being investigated by the Agency.

Discovery of plutonium indicates specific damage in reactor fuel rods. Plutonium is a radioactive substance which more toxic than iodine 131 and cesium or other radioactive substances.

Meanwhile, Tepco said that radiation levels found in ditch water outside the plant number 2 has passed the 1000 millisievert per hour (high level). Contaminated water is likely comes from the reactor core, where the fuel rods material have melted partially. TEPCO also said that the concentration of radioactive substances in a pool at the reactor's basement No. 2 was 100,000 times higher than normal for water in a reactor core. They added that the radiation level in the air in the trench stood at 100 to 300 millisieverts.

In addition, people could suffer a decrease in the number of lymphocytes -white blood cell type- in 30 minutes only, and by remaining in such conditions for just four hours, half could die within 30 days all conditions at 1.000 millisieverts per hour of radiation level.

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