Measure to strongly and radiate things in Fukushima: The straight people of villous themeda of plutonium: Japan faces the greatest crisis

Measure to strongly and radiate things in Fukushima: The straight people of villous themeda of plutonium: Japan faces the greatest crisis
Measure to strongly and radiate things in Fukushima: The straight people of villous themeda of plutonium: Japan faces the greatest crisis
Nuclear crisis of the 18th day of Japan's strongest earthquake The largest crisis Fukushima first nuclear power station detects plutonium atomic energy and ensures safety in the institute in Japan's history: It means the east electricity of severity of the accident: The density will not threaten the human body safely at present on the night of the 28th, the east electricity is held the news briefing and talked in Tokyo, on the 21st and the 22nd of this month, staff members gather the soil sample from 5 places in the first area of nuclear power station in Fukushima, the company trusts the external mechanism to measure, verify that there is micro- plutonium - 238, plutonium - 239 and plutonium - 240 in these samples. Before this, have already been detected radioactive iodine and cesium in the first area of nuclear power station inner soil and nearby sea water in Fukushima, but detect plutonium or the first time. East the intersection of electricity and vice the intersection of society and the intersection of Changwu and the intersection of rattan and honour say " whether let people feel worried, I say apologize " ,But the density of the plutonium radiates the thing density level in the lower soil of normal environment, will constitute a threat to, meet accident aircrew rush to repair, work, stop either. Military rattan say existing density and the intersection of cold war and the intersection of period and the intersection of U.S.A., Soviet Union,etc. and country of plutonium descend slowly and lightly until radioactive material of Japan about equal in level in density after the atmospheric nuclear test, " less than intensity which is detrimental to health " . The east electricity is announced, strengthening to the area of nuclear power station and monitoring of the surrounding environment, increase 3 observation stations newly in the factory, pay close attention to the plutonium density change. However, Japanese atomic energy security institute says on the 29th, detect radioactive plutonium from the first area of nuclear power station inner soil in Fukushima, have " shown significance and severity of the accident " . The courtyard spokesmans of security personnel Western Hills Great Britain swallow says, measuring plutonium element means " the fuel is excellent and is damaged somewhat " ,Though the nuclear reactor has multi-layer shelter shells, find such poisonous radiation thing may well be termed " terribly " . "Though the density of existing plutonium is not enough to threaten the health, I do not feel optimistic. " Western Hills say " this was meaning safe shell presents breaking, I thought the situation made people uneasy. " Make mistakes in succession in data and information that the east electricity is announced recently, their analytical capacity of data and announcing the dependability of the data is queried in many ways. The plutonium will probably come from the reactor No. 3 The east electricity claims not to still know where the plutonium comes from. Expert says, the plutonium - 238 may come from the reactor No. 3, it is only 6 reactors of nuclear power station that mix oxide (MOX) with plutonium uranium with nuclear energy It is the aircrew of the fuel. According to the statement at 28th night of military rattan, it is released that the nuclear fuel that the plutonium may be melted down by the exhausted fuel pool part is excellent. Before this, Fukushima first nuclear power station 1 to 4 aircrew recur hydrogen explode and radioactive material let out and exhausted the intersection of fuel and pool it lacks water, nuclear fuel to be excellent to pile the intersection of core and the intersection of person who melt down and accident. On the 29th, the east electricity is still continuing stepping up resuming the cooled function of every reactor and exhausted fuel pool. From 1 to size 3 the intersection of turbine and the intersection of computer lab and basement and tunnel and there is water accumulation containing radioactive material of high density in the shaft outside the computer lab of aircrew, it is the task of top priority to get rid of the water accumulation. At 28th night, Japan Tokyo Utilities Electric Co. announces, the soil sample gathered in first factory of nuclear power station in Fukushima detects radioactive element plutonium (b for the first time . Radioactivity and toxicity of plutonium are all very strong, are applied to nuclear weapons and nuclear reactor at present. The east electricity claims, the density of measuring plutonium at the present stage is a normal level, will not influence the health. On the 29th, the straight people of villous themeda of Japanese prime minister say, Japan is facing the greatest crisis since the dawn of human civilization. What is plutonium? Why say the state of affair is serious? The intersection of radioactivity and toxicity in human body of plutonium very strong the intersection of Hiroshima and the intersection of Nagasaki and atomic bomb use plutonium make kernel no matter leak, deal with, stand up very much troublesome more or less Before this, Japanese authorities have already detected radioactive iodine and cesium in the first area of nuclear power station inner soil and nearby sea water in Fukushima, why it shows that this time detects plutonium " The severity of the accident " ? Plutonium is that one kind has strong and radioactive transuranium element. Applied to nuclear weapons and nuclear reactor at present. At the time of World War II, the American army threw the atomic bomb under and used plutonium to make kernels in Hiroshima market and market of Nagasaki of Japan. Relevant experts say, no matter how much plutonium that lets out this time is, it is very troublesome to deal with, and until it leak, should excellent to take away fuel in time, choose, pile and deal with one to the intersection of Fukushima and first the intersection of nuclear power station and odd reactors damaged finally, but does not take the fuel containing plutonium away, plutonium will still pollute the groundwater. So, Japan concerned calls the state of affair " serious " . The danger of plutonium still lies in it is to the toxicity of the human body, plutonium is stronger in this respect that compare with other radioactive elements, once invade the human body, will hide in tissue cells such as human lung, skeleton,etc., destroy the cell gene, improve the risk of suffering from cancer. And radioactive element this very long half-life, difficult on treatment. The plutonium most stable isotope is plutonium - 244, half-life was about 80 million, but its most important isotope is plutonium - 239, half-life is up to 2. 410,000. Researcher of academy of sciences Gu ZhongMao of Chinese atomic energy says, plutonium is the material that the nuclear fuel must be produced in the course of reacting, have already measured the radioactive iodine before this near the nuclear power station of the accident, has proved the damage takes place in the excellent outer cover of fuel, this means certainly containing plutonium in radioactive materials leaked. In addition, plutonium compares with iodine, flowability is bad, the iodine has volatility, to the air middle-distance race, plutonium is entered in water at first, enter soil, so, it is just a time question that Japan measures in the soil to plutonium in the area of nuclear power station. Relevant experts point out, the influence of radioactive plutonium is mainly limited to the locality. The straight people of villous themeda: Japan faces the largest crisis in the history and considers letting Fukushima first nuclear power station scrap for 29 days, at committee's meeting of Senate's budget, straight people say the villous themeda while answering Liberal Democratic Party's senator's questions about first nuclear power station accident of Fukushima, the present state of nuclear power station is still difficult to predict, the government will reply with the maximum sense of urgency. The straight people of villous themeda emphasize, the present crisis is not merely the greatest crisis that Japan faces after World War II, we can say it is Japan too ' In history) The greatest crisis. At the meeting, auspicious Guangzhou of Fukushima, party leader of party of the people of the society, puts forward the requirement for closing Fukushima first nuclear power station. The straight people of villous themeda say: "yes,etc. ( Nuclear power station) Enter certain steady state and listen to the expert's opinion, make decision, but possibility is very high. " Japanese chief cabinet secretary a wild good fortune man expresses at the press conference on the 29th too, detect radioactive plutonium in the soil from the area of nuclear power station, and there is water accumulation containing radioactive material of high density in the basement of computer lab of aircrew turbine on the 2nd, "these proved fuel excellent to appear to a certain degree Melt down " . The authority releases the southwest northwest North China of South China of East China of the Northeast to measure to iodine from Japan - 131 To the environment and too public to exert an influence to direct against the possible influence to our country of first nuclear power station accident of Fukushima of Japan healthily, the national nuclear accident meets an urgent need for March 29 of Coordination Committee the authority releases: Notify, the first nuclear power station accident situation in Fukushima of Japan tends towards stability according to International Atomic Energy Agency, the radioactive level of the surrounding environment shows a tendency to continue the decline. It's reported by medias of foreign countries that, U.S.A., Iceland, Finland, France, Sweden, South Korea, Turkey, Russia, Canada, Philippine country claim, monitor the intersection of nuclear power station and radioactive material of trace very much that accident release, Fukushima of Japan, among them South Korea is the highest, it is several 1�� of this natural bottom in the locality. March 29, in the northeast of our country, East China, South China, southwest, the Northwest, North China some area air China and Singapore monitor and come from extremely micro- manpower radioactive nuclide iodine that Japan's nuclear accident release - 131, 1/100,000 of this natural bottom radiation quantity taking shape that less than natural radiants such as rock, soil, building, food, the sun,etc., take the civil aviation flight and fly 1�� of quantity shone by cosmic ray of 2,000 kilometers in other words, will exert an influence to environment and public health, needn't take safeguard procedures any. Comprehensive World Meteological Organization with the intersection of International Atomic Energy Agency and the intersection of Beijing and regional environment respond to centre, National Bureau of Oceanography, environmental protection department promptly ' State Bureau of Nuclear Safety) Monitor and analyze that does not think the accident of Fukushima nuclear power station of Japan has exerted an influence on environment of our country and domestic masses healthily. (comprehensive Xinhua News Agency's report)


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