Mass balance on surface-bound, mineralogic, and total lead concentrations as related to industrial aggregate bioaccessibility
Article Abstract:
Increasing concerns on lead (Pb) bioavailability and its risks to humans have raised interest on the speciation and immobilization of Pb-bearing phases. Previous research has focused only on the solubility of the mineralogic fraction. A current research study, which aimed at investigating the potential for surface-bound (sorbed) Pb to contribute to the bioavailable fraction, shows that there is low bioaccessibility of Pb in modern aggregate compared to urban Cincinnati soils and street dusts.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1997
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Estimation of lead and arsenic bioavailability using a physiologically based extraction test
Article Abstract:
The use of the physiologically based extraction test (PBET) for estimating lead and arsenic bioavailability was investigated. The results showed that in the case of lead, PBET estimates were linearly correlated with that obtained with the Sprague-Dawley rat model. For arsenic, however, PBET results overpredicted bioavailability study results in rabbit and primate models.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
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A risk-based approach to soil remediation modeling
Article Abstract:
A new soil remediation modeling technique offers improved cost efficiency while maintaining the ability to meet basic human health protection standards. The technique, which prevents the over-remediation of sites, makes use of iterative fate and transport modeling to determine the most efficient levels of remediation.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1997
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