RT Journal Article
T1 Biogeochemical indicators (waters/diatoms) of acid mine drainage pollution in the Odiel river (Iberian Pyritic Belt, SW Spain)
A1 Córdoba García, Francisco
A1 Luís, Ana Teresa
A1 Leiva, Mercedes
A1 Miguel Sarmiento, Aguasanta
A1 Santisteban Fernández, María
A1 Fortes Garrido, Juan Carlos
A1 Dávila Martín, José Miguel
A1 Álvarez Bajo, Osiris
A1 Grande Gil, José Antonio
AB Odiel river basin is located in the Iberian Pyritic Belt (IPB) and mostly of its tributaries are severely affected by acid mine drainage (AMD). It is originated when pyritic minerals from abandoned mines, especially mineral residues from waste rock dams, get in contact with air and water. Fifteen sampling points were chosen to analyze interactions between diatom communities and water hydrogeochemistry. Considering physicochemical characteristics, sampling points were assigned as highly, moderately, and unpolluted by AMD. No correlation was observed between ecological diversity indexes and physico-chemical parameters. However, a dependency relationship between diatom species distribution and specific pH, conductivity, redox potential, sulfate, and metal concentrations was observed. Cluster analysis based on Pearson correlation and rs values of the non-parametric Spearman correlation allowed to identify Pinnularia acidophila, Pinnularia subcapitata var. elongata, and Eunotia exigua as the main bioindicators of AMD-polluted Odiel streams. Finally, a principal component analysis led to associate the most abundant diatoms species to specific physico-chemical parameters.
PB Springer
SN 0944-1344
SN 1614-7499 (electrónico)
YR 2022
FD 2022-01
LK https://hdl.handle.net/10272/24730
UL https://hdl.handle.net/10272/24730
LA eng
NO Córdoba, F., Luís, A.T., Leiva, M. et al. Biogeochemical indicators (waters/diatoms) of acid mine drainage pollution in the Odiel river (Iberian Pyritic Belt, SW Spain). Environ Sci Pollut Res 29, 31749–31760 (2022). https://doi.org/10.1007/s11356-021-18475-2
NO The authors are grateful to the Sustainable Mining Engineering Research Group, Department of Mining, Mechanic, Energetic, and Construction Engineering, Higher Technical School of Engineering, University of Huelva, Spain.
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026