A study of Guanabara Bay sedimentation rates

  • J. M. Godoy
  • I. Moreira
  • M. J. Bragança
  • C. Wanderley
  • L. B. Mendes
Letter to the Editor

Abstract

Sedimentation rates in Guanabara Bay were determined by applying the210Pb CRS method to sediment cores collected at five different stations. The results showed a pronounced increase from 0.1–0.2 cm·year−1 to 1–2 cm·year−1, in sedimentation rate, over the last 40–50 years. Observed heavy metal profiles in sediment could also be explained on the basis210Pb dating and local industrial history.

Keywords

Physical Chemistry Heavy Metal Inorganic Chemistry Sedimentation Sedimentation Rate 

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References

  1. 1.
    A. Caçonia, Distribução de cobre, chumbo e zinco em sedimentos superficiais da área norte da Baía da Guanabara, Rio de Janeiro. Master Thesis, Universidade Federal Fluminense, Niteroi, Brazil, 1984.Google Scholar
  2. 2.
    W. Haeckel, F. Schroeder, A. Rebello, I. Moreira, R. Santelli Cd, Pb, Cu, Cr and Hg in waters and sediments of the Guanabara Bay estuary. GKSS Report 85/E/21, Geesthacht, Federal Republic of Germany, 1985.Google Scholar
  3. 3.
    A. Rebello, W. Haeckel, I. Moreira, R. Santelli, F. Schroeder, Marine Chem., 18 (1986) 215.Google Scholar
  4. 4.
    E. S. Amador, An. Acad. Brasil. Ciências, 52 (1980) 723.Google Scholar
  5. 5.
    R. D. Wilken, I. Moreira, A. Rebello An. Acad. Brasil. Ciências, 58 (1986) 195.Google Scholar
  6. 6.
    P. G. Appleby, F. Oldfield Hydrobiologia, 103 (1983) 29.CrossRefGoogle Scholar
  7. 7.
    B. S. Shukla, S. R. Joshi, Environ. Geol. Water Sci., 14 (1989) 73.CrossRefGoogle Scholar
  8. 8.
    S. R. Joshi, B. S. Shukla, J. Radioanal. Nucl. Chem., 148 (1991) 73.Google Scholar
  9. 9.
    B. Forsberg, J. M. Godoy, R. Victoria, L. A., Martinelli, Geol. J., 19 (1989) 399.Google Scholar
  10. 10.
    I. Moreira, J. M. Godoy, Study of the variation of the sedimentation rates in Guanabara Bay, using210Pb. 2nd Karlsruhe Intern. Conf. on Analytical Chemistry in Nuclear Technology, Karlsruhe, Federal Republic of Germany, 1989.Google Scholar
  11. 11.
    J. M. Godoy, H. Schuettelkopf: J. Radioanal. Nucl. Chem. 111 (1987) 329.Google Scholar
  12. 12.
    W. R. Schell, M. J. Tobin M,210Pb Dating Using the CRS-MV Model with Historical Data to Test and Evaluate Accuracy, in: Low-Level Measurements of Radioactivity in the Environment,M. Garcia-Leon andR. Garcia-Tenorio (Eds). World Scientific, Pte. Ltd., 1994, p. 355.Google Scholar
  13. 12a.
    Japan International Cooperation Agency (JICA), The Study on Recuperation of the Guanabara Bay Ecosystem, Vol. 2, Main Report, March 1994, p. 7.2.Google Scholar

Copyright information

© Akadémiai Kiadó 1998

Authors and Affiliations

  • J. M. Godoy
    • 1
    • 2
  • I. Moreira
    • 2
  • M. J. Bragança
    • 2
  • C. Wanderley
    • 2
  • L. B. Mendes
    • 2
  1. 1.Instituto de Radioproteção e Dosimetria-Comissão Nacional de Energia NuclearRio de Janeiro, RJBrasil
  2. 2.Departamento de Química-PontificiaUniversidade Católica do Rio de JaneiroRio de Janeiro, RJBrasil

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