title: [Children exposure to lead in contaminated sites].
abstract: OBJECTIVE
  To assess the exposure to lead in children living in various types of contaminated sites.
  
  
  METHODS
  The study was conducted from June 2008 to December 2009 at four sites in Mexico: Avalos metallurgical, Chihuahua; Morales metallurgical, San Luis Potosí (SLP); Trinidad pottery area, Tlaxcala and Cedral mine site, SLP. These sites contain different sources of lead. The metal levels were quantified in outdoor dust and in peripheral blood of children.
  
  
  RESULTS
  Lead dust concentrations exceed the National Guidelines for residential soils (400 mg/kg) in a range of values for the four sites from 62 to 5 187 mg/kg. Regarding biological monitoring, the studied children showed maximum lead blood levels of 22 µg/dL in Cedral, 31 µg/dL in Morales, 32 µg/dL in Avalos, and 52 µg/dL in Trinidad. It is important to mention that in all the studied sites, a significative positive correlation was found between blood lead levels and the lead concentrations in dust.
  
  
  CONCLUSIONS
  These sites are an example of the health risks related to lead exposure in Mexico; therefore, there is an urgent need for a national public health program aimed at reducing lead exposure in vulnerable populations.
authors: Centro de Investigacion Aplicada en Ambiente y Salud, CIACYT-Medicina, Universidad Autonoma de San Luis Potosi, Mexico.
authors: Rogelio
authors: R
authors: Flores-Ramírez
authors: Edna
authors: E
authors: Rico-Escobar
authors: Jorge E
authors: JE
authors: Núñez-Monreal
authors: Edelmira
authors: E
authors: García-Nieto
authors: Leticia
authors: L
authors: Carrizales
authors: César
authors: C
authors: Ilizaliturri-Hernández
authors: Fernando
authors: F
authors: Díaz-Barriga
mesh_terms: D002516:Ceramics; D002648:Child; D002675:Child, Preschool; D004391:Dust / Q000032:analysis; D004781:Environmental Exposure; D004784:Environmental Monitoring; D005260:Female; D006301:Health Services Needs and Demand; D006801:Humans; D007220:Industrial Waste; D019570:Inhalation Exposure; D007854:Lead / Q000032:analysis* / Q000097:blood; D008297:Male; D008452:Maximum Allowable Concentration; D008669:Metallurgy; D008800:Mexico; D011786:Quality Control; D012306:Risk; D012989:Soil Pollutants / Q000032:analysis; D013054:Spectrophotometry, Atomic
chemical_list: D004391:Dust; D007220:Industrial Waste; D012989:Soil Pollutants; D007854:Lead