For introducing the groundwater quality assessment using background concentration of groundwater, several methods had been studied to estimate the background concentration of groundwater and to suggest the background concentration of study area. Some methods such as Box whisker plot, Percentile and Cumulative probability distribution had been adopted to estimate background concentration, and it was evaluated that the Cumulative probability distribution method presents more reasonable background concentration because it can consider the data distribution. So we estimated the background concentration of study area using cumulative probability distribution method. We suggested the background concentration for each hydrogeology respectively in case hydrogeological water quality similarity is very low.

• 여영도(한국환경공단) | Young-Do Yea Corresponding author
• 서용교(한국환경공단) | Yong-gyo Seo
• 김락현(한국환경공단) | Rak-Hyeon Kim
• 조동준((주)유신) | Dong-Jun Cho
• 김광식((주)유신) | Kwang-Shik Kim
• 조욱상(수원대학교) | Wook-Sang Cho