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Lead in human blood and milk from nursing women living near a smelter in Mexico City

Journal Article · · Journal of Toxicology and Environmental Health; (United States)
 [1]; ; ; ;  [2]
  1. Universidad Autonoma de Queretaro (Mexico)
  2. Universidad Nacional Autonoma de Mexico, Mexico City (Mexico)

The lead content in gasoline in Mexico City is the highest in the world (1g/L). The use of gasoline containing lead as an antiknock agent has been considered the major anthropogenic lead source in the area. 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 [mu]g/dl (SD 19.88 [mu]g/dl), and the geometric mean of milk lead level was 2.47 [mu]g/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 [mu]g/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 [mu]g/kg/d. 32 refs., 3 figs., 1 tab.

OSTI ID:
6500331
Journal Information:
Journal of Toxicology and Environmental Health; (United States), Journal Name: Journal of Toxicology and Environmental Health; (United States) Vol. 38:3; ISSN 0098-4108; ISSN JTEHD6
Country of Publication:
United States
Language:
English