Burkhard Lawrence P, Cook Philip M, Lukasewycz Marta T
Mid-Continent Ecology Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Duluth, Minnesota 55804, USA.
Environ Sci Technol. 2005 Aug 1;39(15):5716-21. doi: 10.1021/es050308w.
Sets of biota-sediment accumulation factors (BSAFs) for fish were compared across ecosystems for nonionic organic chemicals. The sets of BSAFs, when plotted against each other, in log-log space, formed linear relationships and demonstrated that the relative scaling or ranking of the individual BSAFs within a set are consistent, if not the same, across ecosystems. This behavior holds for chemicals that either are, or are not, metabolized by fish. These results demonstrate that sets of BSAF values can differ but with parallel shifts in magnitude between ecosystems (for example, all of the BSAFs in the set are uniformly larger in one ecosystem, while in another they all are uniformly smaller) in response to underlying differences in ecosystem conditions and parameters such as trophic level, diet of the organisms, and distribution of the chemical between the sediment and water column.
针对非离子有机化学品，比较了不同生态系统中鱼类的生物群-沉积物积累因子（BSAF）集。当在对数-对数空间中相互绘制时，这些BSAF集形成了线性关系，表明一组内各个BSAF的相对缩放或排序在不同生态系统中是一致的（即便不完全相同）。这种行为适用于鱼类能够或不能代谢的化学品。这些结果表明，BSAF值集可能不同，但会因生态系统条件和参数（如营养级、生物的饮食以及沉积物和水柱之间化学物质的分布）的潜在差异，在不同生态系统之间产生大小平行变化（例如，一组中的所有BSAF在一个生态系统中均统一较大，而在另一个生态系统中则都统一较小）。
