Marine Heavy Metal Pollution Monitoring in Maizuru Bay, Kyoto Prefecture, in Japan III--Status of Lead Pollution in Bay Sediment and Land Soil--

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  • 京都府舞鶴湾の鉛を中心とした重金属汚染実態調査(3)～底泥調査と陸上土壌調査～
  • キョウトフ マイズルワン ノ ナマリ オ チュウシン ト シタ ジュウキンゾク オセン ジッタイ チョウサ 3 テイデイ チョウサ ト リクジョウ ドジョウ チョウサ

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Abstract

type:P(論文)

Heavy metal concentrations (Pb, Cd, Mn, Ni, Zn and Hg) from surface sediment and those in every 2cm segment of the core sample from Maizuru Bay were examined in 2008. The highest Pb concentration. (2,884μg/g dry) in surface sediment was detected from the sample near the lead battery recycle factory. This concentration was inferior level applied to the environmental index in Norway. It is possible to estimate the times when release of Pb began in this area from the profile of Pb in sediment core. The concentration of Pb in the top of 5cm was clearly higher than in the other lower part of sediment layers. The Pb concentrations in land soil around th lead battery recycle factory not only under the sea but also on the land. It was proved that some antipollution steps which have been taken were not enough.

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