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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Weber, John Juhasz, Albert L. Smith, Euan |
| Description | Country affiliation: Australia Author Affiliation: Juhasz AL ( Centre for Environmental Risk Assessment and Remediation, University of South Australia, Mawson Lakes, SA 5095, Australia. Albert.Juhasz@unisa.edu.au) |
| Abstract | The impact of soil particle size and bioaccessibility on children and adult lead (Pb) exposure via the incidental soil ingestion pathway was assessed in 16 peri-urban contaminated soils. A comparison of Pb distribution across 4 particle size fractions (<50 µm, <100 µm, <250 µm and <2 mm) found increasing Pb concentrations associated with decreasing particle size fractions. Lead enrichment in the <50 µm particle size fraction was up to 5 times the concentration observed in the bulk soil. When gastric phase Pb bioaccessibility was determined in the <50, <100 and <250 µm particle size fractions using the SBRC assay, Pb bioaccessibility also increased with decreasing particle size fraction for 6 of the 16 soils tested. Assessment of children and adult Pb exposure indicated that particle size and bioaccessibility had a significant influence on the contribution of incidental soil ingestion to daily Pb intake values. Although the <250 µm particle size fraction is recommended for incidental soil ingestion calculations, using this fraction has the potential to underestimate Pb exposure due to the preferential adhesion of smaller particles to hands with elevated Pb concentrations. |
| ISSN | 03043894 |
| Issue Number | 2-3 |
| Volume Number | 186 |
| e-ISSN | 18733336 |
| Journal | Journal of Hazardous Materials |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2011-02-28 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Environmental Exposure Statistics & Numerical Data Lead Analysis Blood Soil Pollutants Soil Adult Biological Availability Child Firearms Humans Incineration Industry Metallurgy Particle Size Stomach Metabolism Urban Population Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Pollution Waste Management and Disposal Health, Toxicology and Mutagenesis Environmental Engineering |
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