http://elpais.com
ドイツのMax Planck Institute for Chemistry の代表のJos Lelieveld 氏は、チェルノビルや福島のような原子力(核)発電所事故は、10年ー20年毎に起こると予想、世界の原発は440基+60基建設中
El riesgo de accidente nuclear es mayor de lo calculado
El Instituto Max Planck prevé un incidente grave cada 10 o 20 años
The risk of nuclear accidents is higher than estimated
The Max Planck Institute provides a major incident every 10 to 20 years
Minimum risk to the population radiation Fuskushima
Alicia Rivera Madrid 23 MAY 2012 - 20:51 CET
The Max Planck Institute provides a major incident every 10 to 20 years
Minimum risk to the population radiation Fuskushima
Alicia Rivera Madrid 23 MAY 2012 - 20:51 CET
A catastrophic nuclear accident like Chernobyl Fukushima or may occur somewhere in the world once every 10 or 20 years, which means a probability greater than 200 times the estimates made in the U.S. in 1990, according to a study led by Jos Lelieveld , director of the Max Planck Institute for Chemistry (Germany). These new calculations are made based on the number of civilian nuclear reactors in operation (440), but scientists warn that another 60 are under construction.
Map of overall risk of serious radioactive contamination. / MPI
Western Europe, where the density of reactors is high, every 50 years may suffer an episode of severe contamination by cesium-137 (above 40 kilobecquerels per square meter, which is the level defined by the International Atomic Energy Agency).
These researchers, in view of the results obtained, ask to be carried out in depth analysis and assessment of the risks associated with nuclear plants, according to the Max Planck.
His calculations to determine the probability of core meltdown of a reactor in the exhaust outside world and remember that, until now, there have been four: one in Chernobyl and three in Fukushima-are based on the total number of hours operation of existing nuclear reactors since its commissioning. The report ignores the core meltdown at Three Mile Island in 1979 in the U.S., because it was a partial core melt. The researchers do not distinguish between type of plant or seniority, nor take into account if they are located in risk areas, such as earthquakes.
A fusion of core affect 28 million people in Europe
In their study, published in Atmospheric Chemistry and Physics, Lelieveld and colleagues have used computer models that simulate weather, winds and chemical reactions in the atmosphere, to learn the patterns of spread of radioactive contamination, focusing on cesium -137, a byproduct of the merger of uranium.
The results indicate that, on average, only 8% of the contaminated particles are deposited on the ground in an area of 50 kilometers around the nuclear accident, 50% are over a radius of 1,000 kilometers and approximately 25% will come more 2,000 kilometers away.
By combining these data with the geographic distribution of operating reactors, the researchers conclude that the merger should there be a nuclear reactor in Western Europe would be affected about 28 million people over 40 pollution kilobecquerels per square meter. In South Asia, due to high population density would be 34 million, and in the eastern United States, between 14 and 21 million.
Map of overall risk of serious radioactive contamination. / MPI
Western Europe, where the density of reactors is high, every 50 years may suffer an episode of severe contamination by cesium-137 (above 40 kilobecquerels per square meter, which is the level defined by the International Atomic Energy Agency).
These researchers, in view of the results obtained, ask to be carried out in depth analysis and assessment of the risks associated with nuclear plants, according to the Max Planck.
His calculations to determine the probability of core meltdown of a reactor in the exhaust outside world and remember that, until now, there have been four: one in Chernobyl and three in Fukushima-are based on the total number of hours operation of existing nuclear reactors since its commissioning. The report ignores the core meltdown at Three Mile Island in 1979 in the U.S., because it was a partial core melt. The researchers do not distinguish between type of plant or seniority, nor take into account if they are located in risk areas, such as earthquakes.
A fusion of core affect 28 million people in Europe
In their study, published in Atmospheric Chemistry and Physics, Lelieveld and colleagues have used computer models that simulate weather, winds and chemical reactions in the atmosphere, to learn the patterns of spread of radioactive contamination, focusing on cesium -137, a byproduct of the merger of uranium.
The results indicate that, on average, only 8% of the contaminated particles are deposited on the ground in an area of 50 kilometers around the nuclear accident, 50% are over a radius of 1,000 kilometers and approximately 25% will come more 2,000 kilometers away.
By combining these data with the geographic distribution of operating reactors, the researchers conclude that the merger should there be a nuclear reactor in Western Europe would be affected about 28 million people over 40 pollution kilobecquerels per square meter. In South Asia, due to high population density would be 34 million, and in the eastern United States, between 14 and 21 million.
ドイツのMax Planck Institute for Chemistry の代表のJos Lelieveld 氏は、チェルノビルや福島のような原子力(核)発電所事故は、10年ー20年毎に起こると予想、世界の原発は440基+60基建設中
0 件のコメント:
コメントを投稿