DIRATA is the IAEA’s database on discharges of radionuclides to the atmosphere and the aquatic environment. It is a worldwide centralized repository of data submitted by IAEA Member States and each site dataset includes annual discharge and detection limits. Regulatory limits are given whenever available and a limited amount of information on the location of the site (country, geographical coordinates, water body into which radioactivity is released, number, names and types of installations) is also included.

One of important purposes of DIRATA is to serve to Member States as a technical means for reporting and reviewing within the framework of the Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management.

The first on-line version of the DIRATA database provides tools for

  • input of the primary information by IAEA Member States and international organizations in batch or interactive (record by record) modes. The Microsoft Excel template is provided on the DIRATA website for the batch input;
  • on-line access of Member States and the public to the dataset. The information contained in DIRATA is available for downloading (in CSV format) and interactive review.

DIRATA was prepared by:

  • Radioactive Discharges Unit
  • Waste Safety Section
  • Division of Radiation, Transport and Waste Safety
  • Department of Nuclear Safety and Security
  • International Atomic Energy Agency

The software implementation and technical support are conducted by the IAEA’s Division of Information Technology.

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