4 aircrews in Fukushima nuclear power station radiate the water accumulation high now: The American army gives water to lower the temperature

4 aircrews in Fukushima nuclear power station radiate the water accumulation high now: The American army gives water to lower the temperature
4 aircrews in Fukushima nuclear power station radiate the water accumulation high now: The American army gives water to lower the temperature
On the 24th, Japan's earthquake survivor accepts the detection of nuclear radiation under the guidance of official medical personnel. First nuclear power station of dangerous situations, Fukushima of Japan, relieve still 26, a plurality of reactors there will be possibility of melting and letting out because the temperature is too high still, the radiation amount outside the hydropower station soars continuously. In order to relieve this phenomenon, the American army sends the large-scale freighter to be that this hydropower station will send the fresh water needed badly, by reducing the dangerous situation incurred because of using the sea water to lower the temperature. Because sea water have strong corrosivity, rush to deal with an emergency personnel to be anxious, Fukushima the intersection of cooling system and pipeline in the first nuclear power station might in order to deposit into saline damage that come down and stop up. In this case, the work of lowering the temperature of cooling of the reactor faces greater difficulty. Japan determines, uses the fresh water instead and " has a bath " for the first nuclear power station reactor in Fukushima at once ,And the sea water that the area stored while listing. The radioactive material content in the sea water exceeds 1250 times of arm's length standard near Fukushima first nuclear power station, but from 28 kilometers of sea water in place of hydropower station, the radioactive material content is basically equivalent to normal value. Austrian researchers claim, cut 73% and 60% of similar material leakage quantity after Pele's nuclear accident of the promise happen nearly 1986 years with radioactive iodine and cesium that Fukushima first nuclear power station discharges. Accident of Fukushima nuclear power station and cutting the difference of Pele's nuclear accident of the promise to lie in, a large number of radioactive materials billow and appear with the smog in the fire that cuts Pele nuclear power station of the promise and happens. Meanwhile, Fukushima first nuclear power station only finds temporarily elements easy to volatilize and decompose such as iodine and cesium,etc. are squirted from the damaged fuel stick, but still may form endangering to the people outside the hydropower station seriously healthily. Relevant materials reveal iodine and cesium can borrow wind, travel, from far, in extensive range, the human body is apt to absorb. The iodine is absorbed by the thyroid gland soon, then disappear naturally with radioactive decay. Half-life after cesium will be absorbed by human muscles was 30, so will stay until being discharged by the body in the body, this course may take from 10 days to 100 days. The radiation of these two kinds of isotope may cause the serious injury to DNA. For example, the children who suck the iodine 131 may suffer from thyroid gland cancer after 10 or many years; Comparatively speaking, adult's resistance is a bit stronger. Because this time the first nuclear power station accident of Fukushima is very complicated, it is very difficult to confirm when to deal with the accident at present, the main task is to control the nuclear material to leak at the present stage. Before this, 3 staff members are injured in the underwater work of the radioactive material with higher content by excessive radiation. Do not investigate these yet at present " Poisonous " Source of the water accumulation. Meanwhile, because the water accumulation is relatively large in area, and nuclear radiation exceeds standard by a wide margin, in order that the accident recurs while preventing removing the water accumulation, the rescuer has not carried on the homework of water drainage at present, but is proving the water drainage plan. Rescuer's therefore suspicion, use " uranium plutonium mixture " To make the fuel for the 3rd of nuclear power station of Fukushima first the reactor metal outer cover or exhausted fuel pool may present " The obvious damage or loophole " . However, fortunately, whole reactor and other 5 reactors internal pressure No. 3 are normal in temperature, temporarily will cause nuclear fuel melt further, but radiation in the hydropower station quantity still very much better. Relevant materials reveal, it was that the excellent toxicity of MOX fuel is great that the reactor used on the 3rd. Once leakage takes place really, have very much better radioactive heavy metal (the isotope of uranium and plutonium) which pollutes strength in a large amount It is more difficult to remove. Among them, plutonium up to 25,000 year half-life in element, uranium - up to 700 million years half-life in 235, the first nuclear power station surrounding environment of Fukushima may suffer crushing blow. Japanese Government admits, the first nuclear power station safe protective measure in Fukushima is insufficient seriously for the first time, and propose the residents of 20-30 kilometers stay in the room from the hydropower station " Guarantee the security " . Japan will even require these residents as soon as possible " Evacuate voluntarily " ,In order to be rescued the goods and materials more. Now, find the radioactive pollutant in the milk made in nearby of first nuclear power station of Fukushima and 11 kinds of vegetables and sea water. Once the reactor really has a loophole, the incident that that has already meaning letting out lasted several days on the 3rd. This loophole may be formed when explodes of hydrogen happening on March 14. Though Japanese Government says, has not found a large number of new radiating things in the air yet near Fukushima nuclear power station, but no one dares to guarantee whether water flowed out in the nuclear power station has already leaked to the nearby underground water body. 3 unit new discoveries in Fukushima nuclear power station radiate the water accumulation high By 21 o'clock on the 26th of this month at local time, Japan's earthquake and tsunami cause 10489 deaths, 16621 people are missing. Sadly, in the first perimeter of nuclear power station and range of 10 kilometers in Fukushima, many victim's remains are unable to search. The thousandfold that the radiation of surrounding waters of nuclear power station exceeds standard, 4 aircrews radiate the water accumulation high, Japan's nuclear crisis has not left yet. Continue it for the 3rd of nuclear power station of Fukushima first after the factory building of the aircrew includes the water accumulation that the high density radiates the material on the 24th, the 1st, finding the similar water accumulation on the 25th in the aircrew factory building No. 2 and 4. Electricity of Tokyo is said, by the morning of the 26th, 40 centimetres of water accumulation of the basement among the aircrew turbines on the 1st, radiate the material density equal to water accumulation of aircrew No. 3, normal levels are about 10,000 times; Aircrew's water accumulation is about 1 meter on the 2nd, 1.5 meters of aircrews No. 3, 80 centimetres of aircrews No. 4. Electricity of Tokyo is measuring aircrew's water accumulation No. 2 and 4 and radiating the material density. A spokesman says later on the 26th, personnel begin to use the water pump to clear up the water accumulation for homework. Japanese atomic energy security institute detects many kinds of radiation materials in the water accumulation. Get rid of iodine - 131 and cesium - 137, it is excellent inside in the fuel that other materials are usually airtight, seldom appear in water in the reactor. This organization analyzes, the water accumulation may be let out by the reactor valve, or come from cooling Chinese and foreign circles of course and spraying water; There are not data that reveal the reactor pressure shell is damaged. The swallow of Western Hills Great Britain, spokesman of institute of security of atomic energy is said on the 26th, because the water accumulation suffers pollution, some regional radiation levels of nuclear power station rise, hinder the reactor from cooling the homework. "An important one is, pursue to remove it the method to pollute the water accumulation, continue to cool to let at the same time. " Electricity of Tokyo begins to pour into the fresh water to the aircrew No. 1 and 3 later on the 25th, injected the fresh water into unit No. 2 from 26 days, in order to prevent sea water salt crystallization from adhering to the fuel excellently, weaken the cooling result.


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