聚丁烯管（0.75英寸）埋在被甲苯、三氯乙烯、1,2-二氯苯和邻氯酚污染的饱和和不饱和土壤中，根据有机化学品及其浓度，在1至150天内渗透到可检测水平。将这些结果与不含土壤的管瓶试验进行比较，结果表明，土壤孔隙中有机化学物质的浓度控制着有机化学物质通过埋地塑料管的渗透速率。结果还表明，在其他条件相同的情况下，埋在高有机碳含量土壤中的塑料管的渗透速度将比埋在低有机碳含量土壤中的塑料管慢。 即便如此，有机碳含量极高的土壤也不能用来保护塑料管不被有机化学品渗透。预测土壤孔隙中有机化学物质平衡浓度的方法有助于确定埋在污染土壤中的塑料管是否可能被渗透。包括21个参考文献、表格和图表。

Polybutylene pipes (0.75 in.) buried in both water-saturated and unsaturated soils contaminated with toluene, trichloroethylene, 1,2-dichlorobenzene, and o-chlorophenol were permeated to detectable levels in 1 to 150 days, depending on the organic chemical and its concentration. Comparison of these results with pipe-bottle experiments containing no soil showed that the concentration of organic chemical in the soil pore controls the rate of organic chemical permeation through buried plastic pipes. The results also indicate that under otherwise identical conditions, plastic pipes buried in a soil of high organic carbon content will be permeated more slowly than pipe buried in a soil of low organic carbon content. Even so, soils of very high organic carbon content cannot be relied on to protect plastic pipe from permeation by organic chemicals. A method for predicting the equilibrium concentration of organic chemical in the soil pore was useful in determining whether a plastic pipe buried in contaminated soil is likely to be permeated. Includes 21 references, tables, figures.