Journal
REGULATORY TOXICOLOGY AND PHARMACOLOGY
Volume 51, Issue 3, Pages S49-S56Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.yrtph.2008.05.008
Keywords
cadmium; Biomonitoring Equivalents; BEs; pharmacokinetics; risk assessment; screening
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Recent efforts by the US Centers for Disease Control and Prevention and other researchers have resulted in a growing database of measured concentrations of chemical substances in blood or urine samples taken from the general population. However, few tools exist to assist in the interpretation of the measured values in a health risk context. Biomonitoring Equivalents (BEs) are defined as the concentration or range of concentrations of a chemical or its metabolite in a biological medium (blood, urine, or other medium) that is consistent with an existing health-based exposure guideline. This document reviews available pharmacokinetic data and models for cadmium and applies these data and models to existing health-based exposure guidance values from the US Environmental Protection Agency, the Agency for Toxic Substances and Disease Registry, Health Canada, and the World Health Organization, to estimate corresponding BE values for cadmium in blood and urine. These values can be used as screening tools for evaluation of biomonitoring data for cadmium in the context of existing risk assessments for cadmium and for prioritization of the potential need for additional risk assessment and risk management efforts for cadmium. (c) 2008 Elsevier Inc. All rights reserved.
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