Role of hydraulic parameters in the concentration and spatial distribution of heavy metals in sediments in a two-stage reservoir

Key Points

• Heavy metal concentration in sediments correlates significantly with hydraulic parameters, highlighting environmental health risks.
• Concentration levels of heavy metals like cadmium and lead were elevated by over 30% in specific sediment layers.
• Analysis of sediment samples from a two-stage reservoir showed variable spatial distribution of contaminants.
• Findings suggest that hydraulic management may mitigate sediment contamination and improve reservoir quality.