核事故的发生自人类开发利用核能开始便时有发生,日本福岛第一核电站在遭受特大地震和海啸的袭击之后发生了严重的核泄漏事故,给环境造成严重后果。依据国际环境法中相关国际条约和原则的规定,应当追究其国家环境责任。 Nuclear accidents have taken place since the beginning of human development and utilization of nuclear energy. The Fukushima Daiichi NPP suffered serious nuclear leakage after it was hit by a major earthquake and tsunami, causing serious environmental consequences. According to the provisions of the relevant international treaties and principles in international environmental law, they should hold their state environmental responsibility.