日本政府在上周六与当地官员会谈时估算,在目前年辐射量200毫希沃特的地区,居民要在20多年后,才可以安全回家。年辐射量100毫希沃特的地区则需10年。该推算根据的是核辐射的自然衰减,没有计入人工再清除,比如挖走受污染土壤等因素。诸多专家几个月以来一直持有这种观点。切尔诺贝利核事故已过去25年,但周围的广大地区依然无法居住。
The Japanese government unveiled guidelines last week with the aim of halving radiation in problem areas in two years, but for spots with very high readings it could take much longer to reach safe levels.
日本政府上周公布了指导方针,目标是在两年内使问题地区的核辐射量减半,但在一些高辐射地区,需要更久才能降到安全线。
Japan has banned people from entering within 20 km of the Fukushima plant, located 240 km northeast of Tokyo. Around 80,000 people have been evacuated since the March 11 quake and tsunami and many are living in shelters or temporary homes.
日本禁止人们进入福岛核电站周围20公里(12英里)内的地区。这里位于东京东北240公里。自3月11日日本强震以来,已有大约8万人撤离,很多人还住在避难所或临时住所里。
The governments announcement follows the release of data last week showing radiation readings in 35 spots in the evacuation zone above the 20 millisieverts per year level deemed safe by the government. The highest reading was 508 millisieverts in the town of Okuma, about 3 km from the nuclear plant.
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