Seasonal variations in groundwater arsenic occurrence, speciation, and human health risks under contrasting groundwater-level conditions in an arid irrigated aquifer.
Groundwater arsenic contamination in the northern Tianshan Mountains of Xinjiang, China, threatens regional drinking-water safety, yet its seasonal response to groundwater-level fluctuations remains poorly understood. We integrated UNMIX-based hydrochemical factor analysis, hydrogeochemical modeling, and Monte Carlo si...