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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
biochemistry, genetics and molecular biology
Hair trace elements concentration to describe polymetallic mining waste exposure in bolivian altiplano
Biological Trace Element Research, Volume 139, No. 1, Year 2011
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Description
Severe polymetallic contamination is frequently observed in the mining communities of Bolivian Altiplano. We evaluated hair trace elements concentrations at the population level to characterise exposure profile in different contexts of contact with mining and metallurgical pollution. We sampled 242 children aged 7 to 12 years in schools from five Oruro districts located in different contexts of potential contamination. Hair trace elements concentrations were measured using ICP-MS (Pb, As, Hg, Cd, Sb, Sn, Bi, Ag, Ni, Se, Cu, Cr, Mn, Co and Zn). We compared concentration according to school areas and gender. Concentrations were markedly different depending on school areas. Children from schools near industrial areas were far more exposed to non essential elements than children from downtown and suburban schools, as well as the rural school. The most concentrated non-essential element was Pb (geometric means (SD): 1.6 (1.3) μg/g in rural school; 2.0 (2.3) μg/g in suburban school; 2.3 (3.0) μg/g in downtown school; 14.1 (2.7) μg/g in the mine school and 21.2 (3.3) μg/g in the smelter school). Boys showed higher levels for all non-essential elements while girls had higher levels of Zn. Hair trace elements concentrations highlighted the heterogeneity of exposure profiles, identifying the most contaminated districts. © 2010 Springer Science+Business Media, LLC.
Authors & Co-Authors
Cournil, Amandine
France, Marseille
Ird Institut de Recherche Pour le Developpement
Bénéfice, Éric
France, Marseille
Ird Institut de Recherche Pour le Developpement
Gardon, Jacques
Bolivia, La Paz
Universidad Mayor de San Andres Bolivia
France, Marseille
Ird Institut de Recherche Pour le Developpement
Statistics
Citations: 44
Authors: 3
Affiliations: 3
Identifiers
Doi:
10.1007/s12011-010-8641-1
ISSN:
01634984
Research Areas
Environmental
Genetics And Genomics
Maternal And Child Health
Study Design
Cross Sectional Study
Participants Gender
Male
Female