地下水污染风险区划方法研究

针对地下水易污性评价未考虑污染源要素,缺乏系统有效的地下水污染风险区划方法与参数体系等问题,基于对污染地下水的系统结构分析,污染源解析,构建了地下水脆弱性与污染源综合评价耦合模型,提出了针对地下水污染源的多指标评价方法,形成了地下水污染风险区划的多因素综合评价方法,建立了系统的地下水污染风险评价的参数体系.利用构建的多因素耦合评价方法,以我国北方某大型岩溶地下水源地作为案例进行了污染风险区划,确定了主要污染风险区域.结果表明,风险源与地下水易污性的共同作用决定了地下水高污染风险区分布.地下水污染风险区划方法的建立为地下水污染有效监管提供了必要的方法支撑.

Groundwater Pollution Risk Mapping Method

Based on methods for groundwater vulnerability assessment not involving in contamination source elements, and lack of the systemic and effective techniques and parameter system on groundwater pollution risk mapping in present, through analyzing the structure of groundwater system and characteristics of contaminant sources, and coupling groundwater intrinsic vulnerability with contaminant sources, the integrated multi-index models were developed to evaluate the risk sources of groundwater contaminant and form the groundwater pollution risk mapping in this paper. The models had been used to a large-scale karst groundwater source of northern China as a case study. The results indicated that vulnerability assessment overlaid risk pollution sources of groundwater could effectively confirm the high risk regions of groundwater pollution, and the methods might provide necessary support for the supervision of groundwater pollution.