AI Article Synopsis
- Lead exposure negatively affects children's neurodevelopment, and house dust is a significant source of this exposure in Pakistan.
- A study in Karachi found that lead contamination in house dust is higher than in previous research, with 12% of children exceeding safe lead intake levels.
- A positive correlation was observed between lead intake from house dust and blood lead levels, indicating that children with higher dust lead exposure have significantly higher blood lead levels.
Article 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.
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| http://dx.doi.org/10.1515/reveh-2020-0020 | DOI Listing |
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