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Butyltin contamination in sediments and seawater from Kaohsiung Harbor, Taiwan

机译：台湾高雄港沉积物和海水中丁基锡的污染

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摘要

The distribution of butyltin (BT) compounds in the sediments and seawater, at the river outfalls, fishing ports, shipyards, and industrial zone docks of Kaohsiung Harbor, Taiwan were investigated. Twenty sediment and seawater samples were collected from various locations in the Harbor in 2006 and analyzed for monobutyltin (MBT), dibutyltin (DBT), and tributyltin (TBT). Results showed that the concentration of total BTs varied from 1.5 to 151 ng/g in sediment samples, with TBT being the major component of the sediment samples. This suggests that sediments could be the most possible sink of TBT brought by the sorption mechanism. The concentrations of BTs ranged from 9.7 to 270 ng/L in seawater samples, whereas DBT and MBT, the degradation byproducts of TBT, were mainly the most abundant BT compounds of the seawater samples. This indicates that the abiotic or biotic degradation potential of TBT was significant. Spatially,rnthe highest concentrations of BTs were observed in both water and sediment samples collected from the shipyard and fishing port areas. This indicates that the shipping-related activities (e.g., navigation, ship repair, and ship building) would contribute most of BTs in the environment. Results show that the concentrations of degradation products (DBT and MBT) were related closely to temperature, salinity, dissolved oxygen (DO), and chlorophyll-a of the seawater. This implies that seasonal changes of the water parameters controlled the degradation of TBT in seawater. The observed levels of BT compounds in both seawater and sediments were much higher than those required to induce toxic effects on marine organisms, suggesting that appropriate TBT control strategies should be taken in Kaohsiung Harbor.
机译：研究了台湾高雄港的河口，渔港，造船厂和工业区码头中沉积物和海水中丁基锡（BT）化合物的分布。 2006年，从港口的不同地点收集了20个沉积物和海水样品，并分析了单丁基锡（MBT），二丁基锡（DBT）和三丁基锡（TBT）。结果表明，沉积物样品中总BTs的浓度在1.5至151 ng / g之间，其中TBT是沉积物样品的主要成分。这表明，沉积物可能是吸附机制带来的最可能的TBT汇。海水样品中的BTs浓度范围为9.7至270 ng / L，而TBT的降解副产物DBT和MBT主要是海水样品中含量最高的BT化合物。这表明，TBT的非生物或生物降解潜力是巨大的。在空间上，从船厂和渔港区收集的水和沉积物样品中都观察到了最高的BTs浓度。这表明与航运有关的活动（例如，航行，修船和造船）将贡献环境中的大多数BT。结果表明，降解产物（DBT和MBT）的浓度与海水的温度，盐度，溶解氧（DO）和叶绿素-a密切相关。这意味着水参数的季节性变化控制了海水中TBT的降解。在海水和沉积物中观察到的BT化合物水平远高于对海洋生物产生毒性作用所需的水平，这表明高雄港应采取适当的TBT控制策略。

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  • 来源
    《Environmental Monitoring and Assessment》 |2010年第4期|P.75-87|共13页
  • 作者

    Chih-Feng Chen; rnChin-Ming Kao; rnCheng-Di Dong; rnChiu-Wen Chen;

  • 作者单位

    Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan;

    rnInstitute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan;

    rnDepartment of Marine Environmental Engineering, National Kaohsiung Marine University, Kaohsiung 811, Taiwan;

    rnDepartment of Marine Environmental Engineering, National Kaohsiung Marine University, Kaohsiung 811, Taiwan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    butyltins; sediment; seawater; harbor; shipyard;

    机译：丁基锡;沉淀;海水;港口;船厂;

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