The study examines the impact of a dam collapse in Brazil on metal and metalloid levels in the Doce River estuary, using advanced spectroscopic and isotopic techniques.
Results indicate an increase in particulate and dissolved concentrations of hazardous metals like Fe, Pb, Cd, and As, exceeding safety guidelines.
The findings suggest local communities face potential health risks, particularly from chromium exposure, and highlight changes in metal partitioning due to river-ocean interactions.