초록 열기/닫기 버튼

In this study, a survey of the number of excess water quality standards, an average concentration analysis, and a trend analysis to calculate the grade of groundwater contamination using data from the groundwater quality monitoring network (GQMN) in Gyeonggi-do were conducted. A water pollution map of underground water was provided, and the water quality characteristics between analysis items and influencing factors were identified by statistical analysis. The indication contamination rate-the ratio of three determined contamination indicators-from high to low was Cl- (31.2%) > NO3--N (27.9%) > pH (20.8%) > Trichloroethylene (8.9%) > ￿ᅠ￿ᅠ ￿ᅠ￿ᅠ ￿ᅠ￿ᅠ ￿ᅠArsenic (6.3%) > Tetrachloroethylene (1.5%). According to the contamination grade analysis, the ‘clean grade ￿ᅠ￿ᅠ