Environmental Pollution and Protection

Quality Evaluation of Shallow Groundwater in Luoyang City Based on Fuzzy Mathematics

Download PDF (383.9 KB) PP. 201 - 209 Pub. Date: December 1, 2017

DOI: 10.22606/epp.2017.24006

Author(s)

Ding Jihui
College of Civil Engineering and Architecture, Hebei University, Baoding, 071002, China
Xiang Mengjia
College of Civil Engineering and Architecture, Hebei University, Baoding, 071002, China
Lixiang^*
A State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environment Sciences, Beijing 100012, China
Yang Jingjing
A State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environment Sciences, Beijing 100012, China
Zhu Jianchao
A State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environment Sciences, Beijing 100012, China

Abstract

Based on the investigation of shallow groundwater environment in Luoyang City, thirty two groups of groundwater samples were collected and conducted relevant water quality analysis, sixteen of which were selected as the evaluation indexes. A comprehensive evaluation of Luoyang groundwater was conducted by resorting to fuzzy mathematics. It is concluded that water sample I, sample II, sample III, sample IV, sample V accounted for 6.25%, 37.5%, 37.5%, 6.25, 12.5% of the total. The groundwater quality was largely at a moderate state. In conclusion, comparative analysis by resorting to comprehensive index method, fuzzy comprehensive method using membership degree to evaluate groundwater quality, and it proved fuzzy mathematics more comprehensive and reasonable. Groundwater pollution is mainly concentrated in industrial parks and densely populated urban areas. Such parameters as total hardness and nitrogen were the main causes of groundwater contamination in the study area.

Keywords

Luoyang city; groundwater quality; fuzzy mathematics; comprehensive index method

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