内梅罗指数法在水质评价中存在问题及修正

根据内梅罗指数评价公式,分析了内梅罗指数法进行水质评价存在的问题并进行了修正,解决了原方法在水质评价中的数值不连续的局限性,地下水综合评分值仅受极大值的影响而与Fave关系甚微的弊端,以及原内梅罗指数计算值因相对集中而缺失"较好"水质级别的问题。应用修正前后的内梅罗指数法,对研究区地下水水质评价结果表明,修正后的内梅罗指数法在评价的水质状况时,更能反映真实情况。

Existing Problems and Modifications of Using Nemerow Index Method in Water Quality Assessment

According to the Nemero index formula,the existing problems of using the Nemero index method to evaluate water quality were analyzed and amended.The modified Nemero index method can solve the limitations of numerical discontinuity from the original Nemero index method in water quality assessment,the malpractice of that the groundwater synthesis grading values were only affected by the maximum value but had insignificant correlation with the Fave effect,and the lack of the "relatively good" water quality classification due to the relatively centralized calculation results using the original Nemero index method.The original and modified Nemerow index methods were applied to evaluate the groundwater quality in a specific study area.The evaluation results indicated that the modified Nemerow index method can better reflect the actual situations in the evaluation of groundwater quality.