Journal of Radioanalytical and Nuclear Chemistry

, Volume 161, Issue 1, pp 239–244 | Cite as

Phosphorus availability from bottom sediments of lakes using a nuclear technique

  • F. Flores
  • J. F. Facetti
Applications of Radioanalytical Methods to Geological and Environmental Science


Availability of phosphorus from the bottom sediments of a lake plays an import role in the development of aquatic biota and in the enhancement of the eutrophication process. In this work, the31P−32P isotopic exhange (E values) technique was applied to assess the potential influence of this phosphorus “reservoir” on the water quality of the Acaray and Yguazú Dams in the Easter Region of Paraguay. Samples analyzed were taken from the bottom sediments of the water body at different sites as well as from the shores. The method is reliable and yields information of potential ecological significance.


Physical Chemistry Phosphorus Water Quality Inorganic Chemistry Water Body 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    R. MARGALEFF, Limnologia, Omega, Barcelona, 1983.Google Scholar
  2. 2.
    J. M. ANDERSEN, Arch. Hydrobiol., 74 (1974) 528.Google Scholar
  3. 3.
    WETZEL Limnology 2nd ed. Saunders College Publishing, 1983.Google Scholar
  4. 4.
    G. E. HUTCHISON, A treatise on Limnology, J. Wiley, New York, 1957.Google Scholar
  5. 5.
    O. S. JACOBSEN, Vatten, 4 (1978) 230.Google Scholar
  6. 6.
    S. RUSSELL et al., J. Soil Sci., 5 (1974) 85.Google Scholar
  7. 7.
    E. MALAVOLTA, Manual de Química Agrícola, S. Paulo, 1976.Google Scholar
  8. 8.
    F. AMER, Determination of32P in soils, in: Radioisotopes in Soil-Plants studies 43, IAEA, Vienna, 1962.Google Scholar
  9. 9.
    P. WELCH, Lynnological Methods, McGraw-Hill, USA, 1978.Google Scholar
  10. 10.
    E. MALAVOLTA, in: Curso Regional de Radioisotopos, O. A. S. Asunción, Paraguay (mimeograph), 1971.Google Scholar
  11. 11.
    Standard Methods for Examination of Water and Waste-water, 14th ed., American Public Health Assoc., Washington, 1976.Google Scholar
  12. 12.
    B. ULRICH et al., Kinetic of isotopic exchange between soil phosphate, soil solution and plant in radioisotopes, in: Soil-Plant Studies, 59, IAEA, Vienna, 1962.Google Scholar
  13. 13.
    F. R. HAYES et al., J. Ecol., 40 (1952) 202.Google Scholar
  14. 14.
    J. F. FACETTI, in: 2nd Semin. de Itaipú Binacional sobre Medio Ambiente, 169, Foz de Yguazú, 1987.Google Scholar

Copyright information

© Akadémiai Kiadó 1992

Authors and Affiliations

  • F. Flores
    • 1
  • J. F. Facetti
    • 1
  1. 1.Hydroconsult S. R. L.AsunciónParaguay

Personalised recommendations