官方宣布停产的理由是进行定期保养。业内人士说,实际上是为了改进核电站的安全措施。因为自从一年多前发生的地震和海啸导致福岛核电站大量放射性元素泄漏之后,日本政府对核电站的安全性能显然提出了更高的要求。福岛核电站的四个反应堆彻底下马。其经营公司-东京电力公司宣布,4个核反应堆已经被从名单中删除。受损相对较轻的两个反应堆也被永久性关闭。
TOKYO, Japan - Handout photo shows smoke billowing from the No. 3 reactor of the Fukushima Daiichi Nuclear Power Station in Fukushima Prefecture on March 21, 2011. On front left is the No. 2 reactor and on back right is the No. 4 reactor. Efforts are under way to put the crippled plant under control since the March 11 quake and tsunami. Photo supplied by Tokyo Electric Power Co./Kyodo/MaxPPP