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Lead intake and blood lead in two-year-old U.K. urban children

D J Davies1, I Thornton, J M Watt

  • 1Applied Geochemistry Research Group, Imperial College of Science, Technology and Medicine, Royal School of Mines, London, United Kingdom.

The Science of the Total Environment
|January 1, 1990
PubMed

Insights

This study quantified lead exposure in urban children. Ingestion from dust, food, and water accounted for 97% of lead uptake, with house dust and parental smoking being significant factors.

Area of Science:

  • Environmental Health
  • Pediatric Toxicology
  • Public Health

Background:

  • Lead exposure is a significant public health concern, particularly for young children.
  • Understanding multiple exposure pathways is crucial for effective lead poisoning prevention strategies.

Purpose of the Study:

  • To quantitatively assess lead intake from all identified pathways in 2-year-old urban children.
  • To identify key environmental and behavioral factors associated with blood lead levels.

Main Methods:

  • A comprehensive study involving 97 urban children in Birmingham, U.K.
  • Simultaneous quantification of lead intake through various exposure routes.
  • Statistical analysis correlating blood lead concentration with environmental lead levels and behavioral factors.

Main Results:

  • Blood lead concentration was significantly related to house dust lead loading, object touching rates, water lead concentration, and parental smoking habits.
  • For children within normal U.K. ranges, ingestion accounted for 97% of total lead uptake.
  • Inhalation contributed only 3% to the overall lead intake.

Conclusions:

  • Ingestion is the primary route of lead exposure in young urban children.
  • House dust, water lead concentration, and parental smoking are critical modifiable factors influencing lead exposure.
  • Findings support targeted interventions to reduce lead exposure from common household sources.

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