Skip to main content

Considerations on the Disposal of Radioactive Wastes From Nuclear-Powered Ships Into the Marine Environment (1959) / Chapter Skim
Currently Skimming:

Processes Determining the Concentration of Nuclides in the Marine Environment and in Sea Food
Pages 13-14

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 13...
... interchange between the waters thereof and the waters of the upper mixed layer of the open sea is often inhibited, so that the rate of dilution of pollutant in the water of the basin is a great deal less than the rate of dilution due to eddy diffusion in the open sea. Where the basin has a shallow entrance, there usually will be developed in the basin below the entrance depth a body of water which stagnates seasonally or permanently, and in which there can be a considerable accumulation of elements which fall out as particles from the upper layer.
Read the entire page →
From page 14...
... TABLE 1 PHYSICAL STATES OF ELEMENTS IN SEAWATER (from Greendale and Ballou, 1954) Percentage in given physical state Element Ionic Colloidal Porticulote Cesium 70 7 23 Iodine 90 8 2 Strontium 87 3 10 Antimony 73 15 12 Tellurium 45 43 12 Molybdenum 30 10 60 Ruthenium 05 95 Cerium 24 94 Zirconium 1 3 96 Yttrium 04 96 Niobium 0 0 100 Gravity effects on particulate matter in the sea will tend to remove from the seawater radio-isotopes incorporated in such particles, which eventually settle to the sea bottom.
Read the entire page →

Key Terms

  • enclosed basins
  • mixed layer
  • drinking water
  • partially enclosed
  • average life

  • colloidal porticulote
  • maximum permissible
  • upper layer
  • flushing time
  • products introduced

  • continuous exposure
  • total exposure
  • water particle
  • shallow entrance
  • term conditions

  • rapid increase
  • factors including
  • entrance depth
  • waters thereof
  • solid phases

  • radionuclides exceed
  • water times
  • following detonation
  • water tabulated
  • gravity effects

  • human population
  • usually occur
  • mean residence
  • element ionic
  • sea bottom


    • This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
    More information on Chapter Skim is available.