Distribution, source, fate and bioaccumulation of methyl siloxanes in marine environment.
Distribution, source, fate and bioaccumulation of methyl siloxanes in marine environment.
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DOI：
10.1016/j.envpol.2014.04.033
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发表时间：
2014-08
影响因子：
8.9
通讯作者：
Wenjun Hong;Hongliang Jia;Cheng-Chung Liu;Zi-Feng Zhang;Yeqing Sun;Yi-Fan Li
中科院分区：
文献类型：
--
作者：
Wenjun Hong;Hongliang Jia;Cheng-Chung Liu;Zi-Feng Zhang;Yeqing Sun;Yi-Fan Li
研究表明，一些环状甲基硅氧烷被认为具有持久性、生物累积性、毒性和潜在的生态危害性。在本研究中，我们测定了从中国东北地区海洋环境中收集的海水、沉积物和底层鱼类样品中的甲基硅氧烷。海水、沉积物和鱼类中总甲基硅氧烷的平均浓度分别为 46.1 ± 27.2 ng/L、12.4 ± 5.39 ng/g 干重 (dw) 和 5.10 ± 1.34 湿重 (ww)。海水和污水中甲基硅氧烷的组成存在非常强且显着的相关性（r=0.94，p<0.0001），表明污水是研究海域甲基硅氧烷的主要来源。结果发现，D4的生物沉积物积累因子（BSAF）平均值为0.716±0.456，D5为0.103±0.0771，D6为1.06±0.528，D7为0.877±0.530。
Studies have shown that some cyclic methyl siloxanes were identified as characterized of persistent, bioaccumulated, toxic, and potential to ecological harm. In this study, we determined methyl siloxanes in seawater, sediment and bottom fish samples collected from marine environment in Northeast China. The mean concentrations of total methyl siloxanes were 46.1 ± 27.2 ng/L, 12.4 ± 5.39 ng/g dry weight (dw) and 5.10 ± 1.34 wet weight (ww) in seawater, sediment and fish, respectively. Very strong and significant correlations (r= 0.94,p< 0.0001) were found in compositions of methyl siloxanes between seawater and sewage, indicating that sewage was the main source of methyl siloxanes in the marine area studied. It was found that the mean value of biota-sediment accumulation factor (BSAF) was.0.716 ± 0.456 for D4, 0.103 ± 0.0771 for D5, 1.06 ± 0.528 for D6and 0.877 ± 0.530 for D7.