Hong Hyae-Kyung, Takahashi Shin, Min Byung-Yoon, Tanabe Shinsuke
Center for Marine Environmental Studies, Ehime University, Tarumi, Matsuyama, Japan.
Environ Pollut. 2002;117(3):475-86. doi: 10.1016/s0269-7491(01)00185-3.
Butyltin compounds (BTs) including tributyltin (TBT) and its degradation products, di- (DBT) and mono-butyltin (MBT), were determined in bivalves such as blue mussels (Mytilus edulis) and arkshells (Scapharca broughtonii) collected from Korean coastal waters. BTs were detected in all the blue mussels and arkshells analyzed. The concentrations of total butyltin (sigmaBTs: MBT + DBT + TBT) in blue mussels and arkshells ranged from 49 to 2500 ng/g and 29 to 87 ng/g wet weight, respectively. Higher concentrations of BTs were found in blue mussels collected from Okpo and Kohyonsong Bays and Jangsengpo Harbor where large shipyards and harbors are located with dry-dock facilities. This suggested that maritime activities nearby the harbors play a major role as the source of BTs. Concentrations of TBT in mussels collected from Korea were one of the highest values reported, suggesting ongoing TBT contamination in Korea. Among BTs, TBT was the predominant compound both in blue mussels and arkshells collected from almost all the sampling locations, indicating the fresh input of TBT in Korean coastal waters. Smaller mussels tended to accumulate BTs at higher concentrations than larger ones, which may be due to higher filtration rate of small mussels and/or contact with surface microlayer in intertidal zones.
在从韩国沿海水域采集的双壳贝类，如蓝贻贝（紫贻贝）和魁蚶中，测定了包括三丁基锡（TBT）及其降解产物二丁基锡（DBT）和单丁基锡（MBT）在内的丁基锡化合物（BTs）。在所有分析的蓝贻贝和魁蚶中均检测到了BTs。蓝贻贝和魁蚶中总丁基锡（σBTs：MBT + DBT + TBT）的浓度分别为湿重49至2500 ng/g和29至87 ng/g。在位于有干船坞设施的大型造船厂和港口的玉浦湾、高延松湾和长承浦港采集的蓝贻贝中发现了更高浓度的BTs。这表明港口附近的海上活动是BTs的主要来源。从韩国采集的贻贝中TBT的浓度是报告的最高值之一，表明韩国存在持续的TBT污染。在几乎所有采样地点采集的蓝贻贝和魁蚶中，TBT都是BTs中的主要化合物，这表明韩国沿海水域有新鲜的TBT输入。较小的贻贝比较大的贻贝更容易积累更高浓度的BTs，这可能是由于小贻贝的过滤率较高和/或与潮间带的表面微层接触较多。
