Journal of Oceanography

, Volume 34, Issue 3, pp 108–115 | Cite as

Accumulation rate and heavy metal pollution in Osaka Bay sediments

  • Eiji Matsumoto
  • Setsuya Yokota


The accumulation rates of sediment cores in Osaka Bay have been determined by using210Pb dating technique. In the upper 10 cm210Pbex contents show a constant value with depth. The accumulation rates below the homogeneous layer of sediments ranging from 0.12 to 0.61cm y−1 (0.067−0.34 g cm−2 y−1) were obtained. The higher contents of Zn, Cu, Pb and Cr were observed in the upper 10 to 30 cm of sediments. Assuming that the increment of heavy metal content in sediments is due to anthropogenic origin, the amount of anthropogenic input of heavy metals into sediments were estimated to be 1,300–2,700μg cm−2 for Zn, 150 – 480 for Cu, 360 – 410 for Pb and 320 – 480 for Cr. The increment appears to start about 100 years ago. In surfical sediments most of heavy metal contents exceeded the background content, and then most part of Osaka Bay is polluted by heavy metals.


Heavy Metal Sediment Core Accumulation Rate Heavy Metal Pollution Heavy Metal Content 
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. Ando, A., H. Kurasawa, T. Ohmori andE. Takeda (1974): 1974 compilation of data on the GSJ geochemical reference samples JG-1 granodiorite and JB-1 basalt. Geochem. J.,8, 175–192.CrossRefGoogle Scholar
  2. Kawakami, Y. andH. Nishimura (1976): Benzo (a)pyrene in the sediment of Osaka Bay and Keihin Canal and its estimated sources. J. Oceanogr. Soc. Japan,32, 175–181.CrossRefGoogle Scholar
  3. Krishnaswami, S., D. Lal, J. M. Martin andM. Meybeck (1971): Geochronology of lake sediments. Earth Planet. Sci. Lett.,11, 407–414.CrossRefGoogle Scholar
  4. Matsumoto, E. (1975):210Pb geochronology of sediments from Lake Shinji. Geochem. J.,9, 167–172.CrossRefGoogle Scholar
  5. Matsumoto, E. andC. S. Wong (1977): Heavy metal sedimentation in Saanich Inlet measured with210Pb technique. J. Geophys. Res.,82, 5477–5482.CrossRefGoogle Scholar
  6. Robbins, J. A. andD. N. Edgington (1975): Determination of recent sedimentation rates in Lake Michigan using Pb-210 and Cs-137. Geochim. Cosmochim. Acta,39, 285–304.CrossRefGoogle Scholar
  7. (1969): No. 1, 23–45.Google Scholar
  8. (1971): 3, 115 pp.Google Scholar
  9. (1974): No. 5, 41 pp.Google Scholar
  10. (1978): No. 5, 42–58.Google Scholar
  11. (1977):11, 51–57.Google Scholar
  12. (1974):44, 103–109.Google Scholar

Copyright information

© Oceanographical Society of Japan 1978

Authors and Affiliations

  • Eiji Matsumoto
    • 1
  • Setsuya Yokota
    • 1
  1. 1.Geological Survey of JapanKawasakiJapan

Personalised recommendations