水文地质特征对土壤地下水污染扩散的影响——以某农药厂为例

Influence of Hydrogeological Characteristics on Soil Groundwater Pollution Diffusion—A Case Study of an Agricultural Pharmaceutical Factory

摘要: 伴随着社会的进步，土壤和地下水环境污染问题得到更高的重视。由于地块水文地质条件的差异，地块呈现的污染特征也不尽相同，如部分区域以红尘沉积的粘性土为主，其污染多表现为平面上，垂向上污染深度不深；部分区域如冲击平原区，多为粉土和砂土等透水层，其水平和垂向上污染范围均较大。因此，在开展污染地块调查的同时需注重地块水文地质条件调查，更好地为预防、调查和管控治理地块做支撑。本文以中国南方依山而建的农药厂为例，详细阐述了水文地质条件对污染扩散的影响。

Abstract: With the progress of society, more attention has been paid to the environmental pollution of soil and groundwater. Due to the differences in hydrogeological conditions of the block, the pollution characteristics of the block are also different. For example, some areas are dominated by clay soil deposited of red dust, and the pollution is mostly on the plane, and the vertical pollution depth is not deep. In some areas, such as the impact plain area, most of them are permeable layers such as silt and sand, and their horizontal and vertical pollution ranges are large. Therefore, it is necessary to pay attention to the hydrogeological condition survey of the polluted plot while carrying out the survey, so as to better support the prevention, investigation and control of the plot. In this paper, the influence of hydrogeological conditions on pollution diffusion is discussed in detail with an example of an agricultural pharmaceutical factory built against a mountain in southern China.