DYNAMICS OF DIETARY BIOACCUMULATION AND FECAL ELIMINATION OF HYDROPHOBIC ORGANIC-CHEMICALS IN FISH

DYNAMICS OF DIETARY BIOACCUMULATION AND FECAL ELIMINATION OF HYDROPHOBIC ORGANIC-CHEMICALS IN FISH
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DOI:
10.1016/0045-6535(88)90066-5
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发表时间:
1988-01-01
期刊:
影响因子:
8.8
通讯作者:
MACKAY, D
MACKAY, D
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
GOBAS, FAPC;MUIR, DCG;MACKAY, D

文献摘要

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对鱼类从食物中吸收疏水有机化学物质效率的现有文献资料进行了汇编。结果表明,食品中化学物质的吸收效率与1-辛醇-水分配系数(KOW)呈正相关关系,即1/Eo = 5.3.10-8.cntdot.KOW + 2.3。导出了从食物中摄取化学物质的模型,该模型与观察到的食物摄取数据一致。该方程解释了几种疏水卤代芳烃在自然生态系统中存在的食物链积累现象。
A compilation of available literature data on uptake efficiencies of hydrophobic, organic chemicals from food by fish is presented. It is shown that the uptake efficiency of chemical from food (Eo) follows a relationship with the 1-octanol-water partition coefficient (KOW), i.e., 1/Eo = 5.3.10-8.cntdot.KOW + 2.3. A model is derived for chemical uptake from food, which is shown to be consistent with the observed food-uptake data. The equations provide an explanation for the phenomenon of food chain accumulation, which is observed in natural ecoysystems for several hydrophobic halogenated aromatic hydrocarbons.