Adsorption Characteristics of Tributyltin Compounds to Port and Harbor Sediments

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  • YAMASAKI Tomohiro
    Environmental Engineering Department, Technical Division, Toyo Construction Co., Ltd.
  • NAKAMURA Yoshiyuki
    Marine Environment and Engineering Department, Port and Airport Research Institute
  • KAGAYAMA Akira
    Graduate School of Environment and Information Sciences, Yokohama National University
  • MASUNAGA Shigeki
    Graduate School of Environment and Information Sciences, Yokohama National University

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  • トリブチルスズ化合物の港湾堆積物への吸着特性
  • トリブチルスズ カゴウブツ ノ コウワン タイセキブツ エノ キュウチャク トクセイ

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Abstract

The highly toxic tributyltin (TBT) compounds used as biocides in ship antifouling paints have been released to aquatic environments. In this study, we investigated the sediment-water partition of organotin compounds using the sediments collected from several ports and harbors. As a result, the adsorption of TBT onto a particle was found to be significantly determined by organic carbon content and temperature and less significantly by pH and salinity. The possibility of the effect of dibutyltin (DBT) adsorption on TBT adsorption was suggested.

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