RT Journal Article
T1 Possible adverse effects of mining activity on the neurocognitive development of children in the area of Cerro de Pasco (Perú)
A1 Carreiro-DaCunha, Elton
A1 Ordóñez Mayán, Lucía
A1 Bianchini, Flaviano
A1 Muñoz Barús, José Ignacio
K1 Metal pollution
K1 Mining activity
K1 Pathological effects
AB Over the last 10 years there have been a number of studies examining the effects of exposure to environmental metal pollution on the population of the area of Cerro de Pasco (Peru). These have documented the prolonged pollution of the area caused by mining activity and recorded its pathological effects on the exposed population. The present work reports associations between the concentrations of metals in the hair of the area's children and their cognitive development, investigates the neurocognitive effects of exposure, and examines the change in environmental metal concentrations over time. Significant differences in hair metal concentrations were detected between exposed (case) and non-exposed (control) populations; in the former, the mean arsenic concentration was three times that of the latter, the cadmium concentration was double, and that of lead six times that of the latter. The mean total IQ of the exposed children was 12.3 points lower than those who were not exposed. Significant correlations were detected between the lead, cadmium, arsenic, manganese and antimony concentrations of the children's (combined exposed and non-exposed) hair and TIQ. In the exposed population, marked increases in hair metal concentrations were recorded between 2016 and 2018 (200 %), later falling by 2021 (though still exceeding the 2016 concentrations). Multivariate analyses involving big data are required to determine the covariables that influence the development of TIQ in exposed children, and to determine whether high toxic metal concentrations are an independent risk factor for cognitive deficit.
PB Elsevier
SN 0379-0738
YR 2026
FD 2026-05
LK https://hdl.handle.net/10347/46827
UL https://hdl.handle.net/10347/46827
LA eng
NO Carreiro DaCunha, E., Ordóñez Mayán, L., Bianchini, F., Muñoz Barúz, J.I. (2026). Possible adverse effects of mining activity on the neurocognitive development of children in the area of Cerro de Pasco (Perú). "Forensic Science International", vol. 382
NO This study is partially supported by Source International and a grant from the Xunta de Galicia, Spain (Proxectos Plan Galego IDT; ED431C 2021/35), grant ED431C 2021/24, from the Consellería de Cultura, Educación e Universidades (Grupos Competitivos). The funding source did not influence any stage of the development of this study.
DS Minerva
RD 4 may 2026