Bioavailability and toxicokinetics of hydrophobic aromatic compounds in benthic and terrestrial invertebrates.
Bioavailability and toxicokinetics of hydrophobic aromatic compounds in benthic and terrestrial invertebrates.
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DOI：
10.1139/a96-015
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发表时间：
1996-04
影响因子：
5.7
通讯作者：
A. Belfroid;D. Sijm;C. Gestel
中科院分区：
文献类型：
--
作者：
A. Belfroid;D. Sijm;C. Gestel
底栖和陆生无脊椎动物对水、沉积物和土壤中持久性疏水性化学品的吸收和积累取决于化合物的疏水性（辛醇/水分配系数对数值）和生物体的脂质含量。有几种方法可以确定摄取途径。讨论了它们的优缺点。疏水性污染物的吸收途径主要是通过间隙水，但对于辛醇/水分配系数对数值大于5的化合物，从土壤和沉积物颗粒中的吸收变得重要。在沉积物或土壤的存在下，大部分疏水污染物被吸附到沉积物/土壤颗粒上。因此，累积也受到与吸附有关的因素的控制，如沉积物/土壤的有机物含量和组成、石油的存在、颗粒大小分布以及污染物的停留时间。其他因素可能是粘土含量和金属的存在。结果表明，有机质是控制底栖生物和陆生生物富集的最重要因素。
Uptake and accumulation of persistent hydrophobic chemicals by benthic and terrestrial invertebrates in water, sediment, and soil depends on the hydrophobicity of the compound (log Kow) and the lipid content of the organism. Several methods exist to determine the route of uptake. Their advantages and drawbacks are discussed. The route of uptake of hydrophobic contaminants is mainly via interstitial water, but for compounds with log Kow > 5 uptake from soil and sediment particles becomes important. In the presence of sediment or soil, the bulk of hydrophobic contaminants is sorbed to sediment/soil particles. Accumulation is, therefore, also controlled by sorption-related factors, such as the organic matter content and composition of sediment/soil, the presence of oil, particle size distribution, and the residence time of the contaminant. Other factors may be clay content and the presence of metals. It is shown that organic matter is the most important factor controlling accumulation in benthic and terrestr...