| Title: |
Probabilistic modelling of young children’s overall lead exposure in France: Integrated approach for various exposure media
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| Resource Type: |
document --> technical publication --> journal article
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| Country: |
France
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| Year: |
2007 |
| Availability: |
Environment International 33 937-945.
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| Author 1/Producer: |
Glorennec P.
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| Other Authors/Producers: |
Bemrah N., Tard A., Robin A., Le Bot B. And Bard D.
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| Author / Producer Type: |
Agency, regulator or other governmental or inter-governmental body
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EUGRIS Keyword(s): |
Contaminated land-->Contaminants-->Heavy metals
Contaminated land-->Risk assessment-->Models
Contaminated land-->Risk assessment-->Tools and procedures
Diffuse pollution-->Processes
Water resources and their management -->Stresses, quality and ecological status
Water resources and their management -->Water resources and their management Overview
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| Short description: |
Following the ban on lead as a gasoline additive, concentrations of this pollutant in the air have decreased significantly. However, certain industrial
sites still release lead into the environment, which accumulates in soils and can move up the food chain. In children, even at low concentration in the
blood, lead can cause significant health impacts such as a decrease in neural capacity and intellectual ability.
In this context, French researchers have recently modelled the environmental exposure of children to lead. To this end, they considered three media
that can contain lead, namely food, tap water and soil and dust. Air was not considered in this study and researchers verified that its contribution to
the total dose of lead ingested is minimal. For each of these potential lead contamination paths, they collected contamination and consumption data
for France. Further, they used published data about the average quantity of soil and dust unintentionally ingested by children. They then estimated the
weekly exposure dose (WED) for children aged from 0.5 to 6 years in terms of lead weight per body weight (in µg/kg).
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| Long description: |
Median weekly exposure dose was 7.5 ìg/kg bw.week for children aged 6 months to 3 years and 4.7 for those aged from 3–6 years. 95th percentiles were 13.5 and 8.7 ìg/kg bw.week. Exposure came mainly from food. The principal uncertainties are associated with quantification limits in food and water, representativeness and traceability of tap water samples, and absence of recent data about urban soil contamination.
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Submitted By:
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Professor Paul Bardos WhoDoesWhat?
Last update: 01/11/2007
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