title: Lead in human blood and milk from nursing women living near a smelter in Mexico City.
abstract: Lead levels in breast milk and blood were determined in women living within a 200-m radius of 3 smelters in Mexico City. All samples were analyzed on a Perkin Elmer 460 atomic absorption spectrometer equipped with HGA 2200. The mean blood lead level was 45.88 micrograms/dl (SD 19.88 microgram/dl), and the geometric mean of milk lead level was 2.47 micrograms/100 ml. The correlation coefficient of these two variables was 0.88. Using the mean value of lead found in breast milk, an infant of 5.5 kg would ingest 8.1 micrograms/kg/d in his diet. The daily permissible intake (DPI) established by the World Health Organization (WHO) in 1972 for an adult is 5.0 micrograms/kg/d.
authors.affiliation: Centro de Estudios Académicos sobre Contaminación Ambiental, Universidad Autónoma de Querétaro, Mexico.
authors.forename: D
authors.initials: D
authors.lastname: Namihira
authors.forename: L
authors.initials: L
authors.lastname: Saldivar
authors.forename: N
authors.initials: N
authors.lastname: Pustilnik
authors.forename: G J
authors.initials: GJ
authors.lastname: Carreón
authors.forename: M E
authors.initials: ME
authors.lastname: Salinas
mesh_terms: D000293:Adolescent; D000328:Adult; D004781:Environmental Exposure; D004787:Environmental Pollution; D005260:Female; D006801:Humans; D007854:Lead / Q000032:analysis* / Q000097:blood; D008669:Metallurgy; D008800:Mexico; D008895:Milk, Human / Q000737:chemistry*; D012044:Regression Analysis; D012959:Socioeconomic Factors; D013054:Spectrophotometry, Atomic
chemical_list: D007854:Lead