[Blood lead levels in children and environmental legacy of a lead foundry in Brazil].
OBJECTIVE
To determine the blood lead levels in children living near an inactive lead foundry in the city of Santo Amaro da Purificação, state of Bahia, in September of 1998; and to identify factors associated with differences in these levels.


METHODS
Cross-sectional study with children between 1 and 4 years of age living within 1 km of the lead foundry. Mothers or guardians of 47 children answered a questionnaire concerning ingestion of clay, soil, plaster and/or other materials (pica), and other relevant epidemiological aspects. The concentration of lead in blood was determined by atomic absorption espectrophotometry.


RESULTS
The mean blood lead level was 17.1 +/- 7.3 micro g/dL. Blood lead levels were approximately 5 micro g/dl greater among children with pica, regardless of age, visible presence of scum surrounding the home, employment status of the father, family history of lead poisoning, and malnutrition.


CONCLUSIONS
The environmental legacy of the lead foundry, which was shut down in 1993, continues to represent a relevant risk factor for increased blood lead levels in children, especially those presenting pica.
Carvalho
Fernando Martins
FM
Universidade Federal da Bahia, Departamento de Medicina Preventiva, Salvador, Brasil. fmc@ufba.br
Silvany Neto
Annibal Muniz
AM
Tavares
Tania Mascarenhas
TM
Costa
Angela Cristina Andrade
AC
Chaves
Carolina d'El Rei
Cd
Nascimento
Luciano Dias
LD
Reis
Márcia de Andrade
Mde A
D001938:Brazil; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D004781:Environmental Exposure; D006801:Humans; D007223:Infant; D007854:Lead / Q000097:blood*; D010842:Pica / Q000150:complications*; D012307:Risk Factors
D007854:Lead