Contribution of house dust contamination towards lead exposure among children in Karachi, Pakistan

Akihiko Ikegami, Mayumi Ohtsu, Fujio Kayama, Ambreen Sahito, Adeel Ahmed Khan, Zafar Fatmi, Yoshihiko Nakagi, Takahiko Yoshida

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Lead exposure is associated with impaired neurodevelopment among children. House dust is recognized as one of the important secondary sources of lead exposure in children. We assessed the relationship between lead contamination in house dust and blood lead level in Pakistani children. We investigated lead contamination in house dust samples collected from 59 houses in Karachi, Pakistan. The lead content of house dust in Pakistan was relatively higher than that reported in previous studies. Weekly lead intakes from house dust were considerably higher among Pakistani children. In Pakistani children, 12% (7 of 58) showed lead intake values greater than the previous Provisional Tolerable Weekly Intake of lead. A correlation (Pearson's correlation = 0.37) was found between weekly lead intake from house dust and blood lead level in Pakistani children. In addition, blood lead levels were significantly higher in children with high lead intakes than in children with low and medium lead intakes. Thus, house dust is an important source of lead exposure in Pakistani children.

Original languageEnglish
Pages (from-to)271-275
Number of pages5
JournalReviews on Environmental Health
Volume35
Issue number3
DOIs
Publication statusPublished - 1 Sept 2020

Keywords

  • Children
  • House dust
  • Lead
  • Pakistan

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