此范文为英译中

原文：

Chemicals present in one environmental matrix may be affected by several complex processes
and phenomena, facilitating transfers into other media. The potential for cross-media transfers of pollutants from the soil medium into other media is particularly significant.
In fact, the movement of contaminants through soils is generally very complex, with some pollutants moving rapidly while others move rather slowly. In general, the affinity that contaminants have for soil affects their mobility by retarding transport. For instance, hydrophobic or cationic contaminants that are migranting in solution are subject to retardation effects. The hydrophobicity of a contaminatnt can greatly affect its fate, which explains some of the different rates of contaminant migration that occur in the subsurface environment. On the other hand, chemical constituents having a moderate to high degree of mobility can leach from soils into groundwater; volatile constituents may contribute to subsurface gas in the vadose zone, and also possible releases into the atmosphere. Conversely, it is possible for cross-media transport of constituents from other media into soils to take place; for example, chemical constituents may be transported into the soils matrix via deposition of suspended particulates from the atmosphere, and also through releases of subsurface gas.

译文：

一个环境介质中出现的化学物质可能会受到几个复杂程序和现象的影响，从而促进向其他介质转化。从土壤介质到其他介质，污染物跨介质的潜力是特别重要的。实际上，通过土壤发生运动的污染物通常是非常复杂的，某些污染物运动得很快而其他的则相对慢些。通常，污染物与土壤的亲合力会因为阻碍传输而影响他们的移动性。例如，在溶液中迁移的狂犬病或阳离子污染物会被延缓。污染物的疏水性会极大地影响其归宿，这就表明在地表环境中会发生几种不同归宿的污染物移动。另一方面，具有中等到高等移动性的化学要素可以从土壤侵入地下水；挥发性的要素会在渗流区中产生地下气体，同时还可能排放到大气中。反过来，要素也很有可能会从其他介质传输到土壤中。比如，化学要素可能会通过悬浮物分解、或是地下气体的排放从大气传输到土壤介质中。