山东半岛蓝色经济区烟台市地下水质量综合评价

Comprehensive Assessment of Groundwater Quality in Yantai City in Shandong Peninsula Blue Economic Zone

摘要:

该文以山东半岛蓝色经济区烟台城市地质调查范围636km2作为研究区，选取136个水质监测结果中的10种因子，选取基于熵权的综合指数法进行评价，详细介绍了熵权综合指数法在地下水水质评价中的应用。结果显示，研究区内水质评价结果共分为5个区，其中Ⅰ~Ⅲ类水占总面积的40.1%，Ⅳ，Ⅴ类水占总面积59.9%，总体水质一般，主要原因是工业污水、生活污水大量排放，化肥、农药的大量使用、大量开采地下水。较差区域主要分布在开发区大季家镇古现镇福山区臧家镇福山区兜余镇莱山区孙家滩以北、八角镇永福园以南，莱山街道解甲庄街道以北，养马岛，牟平武宁镇、研究区河流下游及沿海地带，超标因子主要有亚硝酸盐、硝酸盐、氯化物、溶解性总固体（TDS）、总硬度、氨氮、镉、铅、挥发酚等。该方法计算过程简单合理，结果客观、可靠、合理，值得推广应用。

Abstract:

In this paper, selecting geological surveying area in Yantai city in Shandong Peninsula Blue Economic Zone as the research area, which covers about 636km2, 10 factors have been from 136 water quality monitoring results have been evaluated. Comprehensive index method is selected as the evaluation method, and the application of entropy weight in groundwater quality evaluation has been introduced in detail. The water quality in the study area can be divided into five areas, Ⅰ~ Ⅲ type water account for a total area of 40.1%, while Ⅳ and Ⅴ water account for a total area of 59.9%. The overall water quality is general. The main reasons are large amounts of industrial sewage and domestic sewage discharge, large amounts of chemical fertilizer and pesticide use, and large amounts of underground water extraction. The poor areas are mainly distributed in Dajijia town in the development zone, Guxian town, Sunjiatan in Fushan district, Douyuzhen town in Fushan district, north of Sunjiatan in Laoshan district, south of Bajiao townYongfuyuan, north of Laishan streetJiejiazhuang street, Yangmadao island, Wuning town in Muping city, and downstream of the river and coastal areas. Superscalar factors include nitrites, nitrates, chloride, total dissolved solids (TDS), total hardness, ammonia nitrogen, cadmium, lead, volatile phenol, etc. Through analysis and comparison, the evaluation result of entropy weight comprehensive index method is reliable and worth popularizing. It is showed that the calculation process of this method is simple and reasonable, and the result is objective, reliable and reasonable.