Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/48415
Título: Determinants of blood lead levels in children: A cross-sectional study in the Canary Islands (Spain)
Autores/as: Bas, Pilar
Luzardo, Octavio P. 
Peña-Quintana, Luis 
González, Juan E.
Peña, Juan A.
Gracia, Javier
Zumbado, Manuel 
Boada, Luis D. 
Clasificación UNESCO: 32 Ciencias médicas
3212 Salud pública
320110 Pediatría
Palabras clave: Exposure
Questionnaire
Population
Toxicity
Cadmium
Fecha de publicación: 2012
Publicación seriada: International Journal of Hygiene and Environmental Health 
Resumen: The adverse effects of lead exposure on children are well known. Low blood lead levels (BLL) produce neurodevelopmental delay and cognitive disorders. However, since BLL thresholds for adverse effects on children's health are not known, the children population at risk of excessive lead exposure still has to be identified. This study was aimed at evaluating BLL in a children population of Gran Canaria (Canary Islands, Spain). Up to our knowledge, this is the first study to report on BLL in this population. Lead was identified and quantified in blood samples of 120 children, by means of Graphite furnace atomic absorption spectrometry (GFAAS). Lead was undetected in 80% of samples; BLL was 1 to 5 mu g/dl in 15% of samples, and higher than 5 mu g/dl in more than 4% of samples. BLL values in the evaluated children were low and similar to those described for other populations in Western countries. However, samples with the highest contamination (those in percentile 95) reached BLLs as high as 5.2 mu g/dl. Positive associations were found between BLL and recent immigration (children adopted from non-western countries), and between BLL and parental smoking in children with low weight at birth. Since lead exposure in childhood may be a causative factor in adverse health trends - especially those involving the neurological system - and since threshold values for adverse lead effects are unknown, our finding that around 20% of the studied children had BLL higher than 1 mu g/dl are of concern. Enhancing preventive measures for reducing lead exposure in children from the Canary Islands deserves further study.
URI: http://hdl.handle.net/10553/48415
ISSN: 1438-4639
DOI: 10.1016/j.ijheh.2011.10.011
Fuente: International Journal Of Hygiene And Environmental Health[ISSN 1438-4639],v. 215 (3), p. 383-388 (Abril 2012)
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