Screening-level ecological risk assessment (SLERA) in an abandoned As–Cu mining area (N Spain): implications of phyto-availability and soil properties on vegetation

• DOI: 10.1007/s10653-025-02394-z
• Publication Date: 2025-02-22T07:07:34Z
• Authors: Humberto Serrano-...; Miguel Izquierdo-...; Fernando Barrio-P...; Rodrigo Álvarez; Almudena Ordóñez; Eduardo De Miguel
• Keywords: Edaphic

Abstract This study applies a Screening-Level Ecological Risk Assessment (SLERA) to evaluate the potential impact of trace elements on vegetation in an abandoned As–Cu mining area northern Spain. A total 27 soil samples were analyzed for pseudo-total ( aqua regia ) and phyto-available (EDTA 0.05 M) content As, Cd, Co, Cr, Cu, Ni, Pb Zn. Contamination ecotoxicological risk indices used identify pollution hotspots contaminants ecological concern (COPEC). Arsenic, Co Zn pose across site. Available concentrations these are high, although average phyto-availabilities generally low (< 30%). Remarkably, some highly contaminated areas support vegetation, while others remain barren. suggests that high alone do not fully explain presence or absence vegetation. Edaphic properties, such as pH minimal organic matter content, seem play critical role inhibiting growth certain areas. These results underline importance considering only element but also site-specific edaphic properties when assessing planning remediation strategies