Historical record of heavy metal pollution deduced by lead isotope ratios in core sediments from the ...

  title={Historical record of heavy metal pollution deduced by lead isotope ratios in core sediments from the ...},
  author={Takahiro Hosono and Chih-Chieh Su and Kei Okamura and M Taniguchi},
Three marine sediment cores from Osaka Bay were analyzed for Pb geochronology, heavy metal concentrations (Zn, Cu, and Pb) and stable lead isotope ratios (Pb/Pb) in order to reconstruct high-resolution heavy metal pollution history from 1900-2006. Anthropogenic metal accumulation in sediments peaked in 1970 in agreement with the high economic growth period in Japan. The comparison of temporal patterns of Pb/Pb ratio with other areas of Japan suggested that the heavy metals, imported from… CONTINUE READING

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