2017, Number 3
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Rev Med Inst Mex Seguro Soc 2017; 55 (3)
Intelligence quotient loss in Mexican pottery artisan’s children
Estrada-Sánchez D, Ericson B, Juárez-Pérez CA, Aguilar-Madrid G, Hernández L, Gualtero S, Caravanos J
Language: Spanish
References: 37
Page: 292-299
PDF size: 306.83 Kb.
ABSTRACT
Background: In Mexico, artisans frequently use lead oxide or greta in
order to produce utensils, which are destined to preparation and storage
of food and drinks. Additionally, the risk of lead poisoning of artisans
and their families is greater than in general population, and within these
families, children are the most susceptible to lead poisoning. The aim of
this study was to estimate IQ loss in Mexican children from potter families
exposed to lead.
Methods: Lead concentrations in soil were determined in 19 potter’s
homes that functioned as pottery workshops in seven Mexican states
between 2009 and 2012. This information was used to estimate blood
lead levels through the integrated exposure uptake biokinetic (IEUBK)
model. The loss of IQ points was then estimated according to the Lanphear
and Schwartz models.
Results: The mean lead concentration found in the workshops’ soil was
1098.4 ppm. Blood lead levels estimated in children under 8 years old
were 26.4 µg/dL and the loss of IQ points comprised from 7.13 to 8.84
points depending on the model.
Conclusions: It is possible that 11 children from families of artisans in
Mexico may be losing between 7.13 to 8.84 IQ points, due to lead exposure
in their houses-workshops. This loss in IQ points could have important
health, economic and social impacts.
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