RT Journal Article
T1 Impact of Old Pb Mining and Metallurgical Production in Soils from the Linares Mining District (Spain)
A1 Boente López, Carlos
A1 Sierra, Carlos
A1 Martínez López, Julián
A1 Rodríguez Valdés, Eduardo
A1 Afif, Elías
A1 Rey Arrans, Javier
A1 Horta Ribeiro Antunes, Isabel Margarida
A1 Rodríguez Gallego, José Luis
AB Mineral processing and metallurgy production centers may leave a far-reaching fingerprintof soil contamination. This scenario is particularly relevant in the mining district of Linares (SouthernSpain), where former industrial sites are now dedicated to other land uses. Within this context,we selected five sectors of concern in Linares region, which are currently used as agricultural andresidential areas. The study began with an edaphic characterization, including grain-size fractioningand soil chemical analyses, which were complemented by mineralogical and sequential extractioninformation. Anomalous soil concentrations of As, Cd, Cu, Pb, and Zn were found, with highervalues than the admissible regional guideline limits. Moreover, chemical speciation indicated thatin general, Pb, Zn, and Cd were highly available and bound mainly to the carbonate fraction. Inaddition, health risk assessment evidenced potential threats by Pb and As. Regarding remediationapproaches, we observed that, in soils affected by mining and ore dressing activities, the clay andsilt size fractions contained the highest pollution load, making them suitable for a size classificationtreatment. By contrast, in areas affected by metallurgical activity, pollutants were prone to be evenlydistributed among all grain sizes, thereby complicating the implementation of such remediationstrategies
PB MDPI
SN 2076-3298 (electrónico)
YR 2022
FD 2022
LK http://hdl.handle.net/10272/20711
UL http://hdl.handle.net/10272/20711
LA eng
NO This work was partially funded by the research projects NANOCAREM, MCI-20-PID2019-106939GB-I00 (AEI/Spain, FEDER/EU).Carlos Boente obtained a postdoctoral contract within the PAIDI 2020 program(Ref 707 DOC 01097), cofinanced by the Junta de Andalucía (Andalusian Government). This workwas developed under the project UIDB/04683/2020 and UIDP/04683/2020—ICT, Fundação para aCiência e Tecnologia. The authors thank Noemi Esquinas for assistance provided with the sequentialextraction procedures
DS Repositorio Institucional de la Universidad de Huelva
RD 14 jul 2026