天津市地下水质量评价

通过对比分析典型地下水样超标组分与各种评价结果的一致性,统计分析各种评价结果的分布特征,确定了适用于天津市地下水质量评价的方法是模糊评判法。评价结果表明:天津市浅层地下水质量差,Ⅴ类水分布面积占平原区总面积的70%以上;天津市深层承压水质量较差,Ⅴ类水分布面积占含水层组分布总面积的40%～50%。

Evaluation of groundwater quality in Tianjin City

Based on the comparison of the consistency of over-standard parameters with the evaluation results and statistical analyses of the distribution features in the groundwater samples, the fuzzy evaluation method is determined as a suitable method to evaluate the groundwater quality in Tianjin. The evaluation results show that phreatic water in Tianjin is of bad quality, and the area of water in Class V of national surface water quality standard accounts for 70 percent of the total plain area, and the quality of deep confined groundwater is also bad, with the V class water accounting for 40 to 50 percent of the total area.