Lead exposure among Malaysian school children using & dgr ; - aminolevulinic acid as an indicator.
Copyright (c) 1996 Elsevier Science B.V. All rights reserved.
A study on lead exposure among school children aged between 7 and 12 years from Kajang and Sepang in the state of Selangor, Malaysia was carried out using delta-aminolevulinic acid ( & dgr ; - ALA & rpar ; levels in the urine as an index.
The & dgr ; - ALA levels in urine were linked to variables which could contribute to lead exposure.
Out of 1628 school children studied [Kajang (43.5% & rpar ; and Sepang (56.5% & rpar ; only 194 subjects (16 and 8.8% from Kajang and Sepang, respectively & rpar ; had urinary & dgr ; - ALA levels between 0.6 and 2.0 mg/100 ml.
However, khi2 analysis demonstrated significant association between & dgr ; - ALA of this group to some of the variables.
The strongest association was found in the habit of biting fingernails (P<0.025 & rpar ; Other statistically significant correlations were found between & dgr ; - ALA and father s occupation (P<0.05 & rpar ; and the amount of time spent playing in the field (P<0.01 & rpar ; Generally, this study indicates that school children in Kajang and Sepang are still relatively safe from excessively high lead exposure.
However, a more sensitive indicator, which is based on a lower tolerable lead limits, such as lead in blood, are necessary to affirm this finding.
Copyright 1997 Elsevier Science B.V.
Mots-clés Pascal : Plomb, Métal lourd, Exposition, Evaluation, Epidémiologie, Enfant, Homme, Age scolaire, Malaisie, Asie, Marqueur biologique, Urine, Liquide biologique, Polluant, Environnement, Milieu urbain, Milieu rural, Lévulinique acide(5-amino)
Mots-clés Pascal anglais : Lead, Heavy metal, Exposure, Evaluation, Epidemiology, Child, Human, School age, Malaysia, Asia, Biological marker, Urine, Biological fluid, Pollutant, Environment, Urban environment, Rural environment
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0225304
Code Inist : 002B03L05. Création : 11/06/1997.