Revista Facultad de Ingeniería Universidad de Antioquia
versão impressa ISSN 0120-6230
GONZALEZ VALDEZ, Eduardo et al. Blood lead levels and risk factors for lead poisoning in mexican children. Rev.fac.ing.univ. Antioquia [online]. 2008, n.43, pp. 114-119. ISSN 0120-6230.
Lead (Pb) is an environmental pollutant known to cause adverse health effects in humans. Human exposure to Pb is generally assessed by monitoring their concentrations in blood, taking into account the influence of various factors, such as age, gender, diet and air pollution. We measured the concentrations of Pb in the blood of 80 children that correspond to 32 % of the total of children smaller than 15 years, in the mining area of the population of Vetagrande in Zacatecas, Mexico. The lead concentration in blood was analyzed twice by anodic stripping voltammetry based upon the criteria outlined in the Official Mexican Standards, which define 6 categories of contamination. From the results 45% of the children presented < 10 µg/dL, 16.25% 10-14 µg/dL, 33.75% 15-24 µg/dL and 5% 25-44 µg/dL that correspond to the categories I at IV respectively. Thus, more than 50% of the children have lead levels in blood that deserve intervention on the part of the services of health. The probable cause of the lead presence in blood may be due to population's houses are seated in lands enriched with lead, and through an interaction the lead is transported toward people.
Palavras-chave : lead in blood; Vetagrande; health; anodic stripping voltammetry.