As the ultimate destination of low-level radioactive waste,the safety of near surface disposal facilities is of great significance.Based on the design project of a disposal facilities,analyze the radioactive nuclide release scene after the closure of a near surface disposal facilities,and establish a model to demonstrate its impact on the environment.The results indicate that after the closure of the near surface disposal facilities,the migration of radioactive nuclides has a very small impact on the public dose,meeting the requirements of the national standard for the constraint value of public exposure dose.
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