Analysis of the Pathogenic Factors and Hydrogeochemistry Characters of Drinking Water in Kaschin-Beck Disease Area of Hongyuan County,Sichuan Province,China
Kaschin-Beck disease(KBD)is a local endemic osteoarthritis disease.Hongyuan County is one of the serious KBD area in China.A total of 37 groundwater and surface water samples were collected in September 2009.The water quality data in this research include major cations,anions,and trace elements.The results indicate that hydrochemical types of disease areas are mainly low degree of mineralization and HCO3-Ca and the water source is melt water and rainfall.The enrichment presented by Se and Zn while Sr,Ba,F existed in indigence is the the typical characteristic of the drinking-water.There were significant differences among prevalence rates of KBD by drinking different water sources with SPSS software.People drinking the surface water there are more likely to become KBD victims.According to factor analysis method and hydrogeological conditions of the study area,KBD prevalence in the study area has close relationship with Ca,SO4,Sr,F elements in drinking water.Lack of these four elements leads to prevalence of KBD increase.