The Government looks with local governments the opportunity to establish a "zone of caution" cabinet the power plant with a radius of 12 miles said Yukio Edano, Chief Secretary of the Japan. Such a zone would be legally binding, unlike the current evacuation, which is technically voluntary.
As most of the Fukushima Daiichi nuclear power radiation releases were arrested, some families were to return to the area these days to remove the personal effects and some journalists have explored the it. Dozens of families never left after the initial evacuation was commissioned by stages, there are almost six weeks after an earthquake and tsunami on March 11.
Growth of activity in the area to evacuate prompted concern among disaster victims that their homes may be stolen while they are away. Nuclear experts have been debating whether the continuous movement of people, livestock and vehicles in the region make it more difficult for decontamination after the nuclear power plant has been fully stabilized.
Noriyuki Shikata, a senior Government spokesman, said on Tuesday that the Government had no legal authority to prevent people from entry and exit of the evacuation zone, nor legal authority to expel those who stayed behind. The media have suggested that 200 households are still occupied in the area, mainly elderly people who refuse to live in evacuation centres in gyms or farmers who refuse to abandon their livestock.
Plans for a cautious zone were reported by the Asahi Shimbun newspaper, which said that the Government also plans to allow residents to make short trips in the area to recover their houses essentials.
The newspaper Sankei Shimbun reported on its Web site Wednesday morning that residents of the city of Minami-Soma, which is partly within the north shore of the evacuation zone, were given fliers warning that it might be to create a legally enforceable cautious zone.
A police spokesman from Fukushima Prefecture, whose jurisdiction includes the evacuation zone, said that the police have been spot checks on 3,378 addresses in the region over the past three weeks and found people to 63 sites; These people were asked to leave. According to the Japanese cabinet, there is 78,200 residents of the area within the radius of 12 miles before the earthquake, tsunamis and nuclear accidents.
Mr. Edano, second to the Japan government official, told a Conference of press followed Wednesday afternoon that Prime Minister Naoto Kan would travel Thursday to Fukushima meet the Governor of the prefecture and visit evacuation centers in the two cities of the Prefecture. Mr. Edano declined to predict if a caution zone would be imposed.
Decontamination of a wide area after a nuclear accident is composed of mapping very carefully "hot spots" where the wind and rain have perhaps concentrated benefits radioactive. Contaminated objects are then sent to a landfill specially lined; even the dirt may have to be excavated if contamination is high enough.
Michael Friedlander, a plant operator old nuclear power in the United States and the specialist of nuclear emergency who lives now in Hong Kong, said in an interview week last and this week was very important to prevent unnecessary in the evacuation zone activities. He has supported car tires and other movement may cause smearing autour of radioactive dust from the invisible hotspots, which made it necessary for the decontamination of other areas as well, or leaving other areas with low levels of contamination.
But Michael Corradini, the President of the engineering physics from the University of Wisconsin, said that, with crews to be able to configure already lines of electricity in the whole of the evacuation of the damaged power plant area and with equipment heavy repair made as to the power plant, the movement of individuals and their vehicles would probably not much extra effect to spreading hot spots.
Another people 62,400 has lived between 12 and 19 miles from the power plant. People living within the greater region were originally told to stay indoors, but have since been asked to leave voluntarily, with the residents of five other communities outside the zone also received a few because of wind profiles radioactive fallout and the rain. The cabinet has not published an estimate of the population of the other five communities.
After the Chernobyl nuclear accident in 1986, the former Soviet Union has established that a more rigorously applied zone of exclusion of an initial radius of approximately 19 miles. Later, the exact boundaries of the area have been adjusted to take account of the real models benefits. Wind and rain had grown particularly heavy fallout North of the reactor which took fire.
Japan was the chance that weather patterns appear to have pushed much of the East of radiation right and out at sea, except for a plume that fell to Earth farm Northwest of the reactor.
Much wind gauges and other meteorological equipment near the site were destroyed by the tsunami and the earthquake. Last week, Masanori Shinano, technical advisor to the nuclear safety of the Japan Commission, said that the Government needed estimate the direction of the wind to calculate radiation total released by the accident. The Agency looked at the weather forecast for these days around the area of Fukushima, that are generated to go computer models with other weather stations, and to conclude the wind forecasts has been mainly blowing towards the sea during the days of the larger version of radioactive airborne.
The commission, a group of independent experts, believes that the radiation total released by the accident of Fukushima was one sixth of that of Chernobyl. Japan, nuclear and industrial safety agency, which has a history of being close to the nuclear industry, estimated that the total release was one-tenth of Chernobyl.
Ken Ijichi, Moshe Komata and Kantaro Suzuki contributed reporting.
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