Natural and anthropogenic factors controlling hydrogeochemical processes in a fractured granite bedrock aquifer, Korea.

ABSTRACT: Contamination of groundwater has become a critical environmental concern, prompting international inquiries. In this study, the impacts of natural and anthropogenic factors in the granite bedrock groundwater system were identified based on the hydrogeochemical compositions including environmental isotopes (δ¹⁸O, δ²H, ²²²Rn, δ³⁴S_SO4, δ¹⁸O_SO4) using multivariate statistical methods. Hierarchical clustering analysis classified the groundwater samples into three groups for both dry and wet seasons. The first group, observed in both seasons, represents groundwater influenced by water-rock interactions in low flow and also demonstrates anthropogenic contamination near densely populated residential areas. The second grou

SUBMITTER: Kim J 

PROVIDER: S-EPMC12043750 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature