Human biomonitoring assessment values: Approaches and data requirements


Human biomonitoring (HBM) data is a very useful metric for assessing human's exposures to chemicals in commerce. To assess the potential health risks associated with the presence of chemicals in blood, urine or other biological matrix requires HBM assessment values. While HBM assessment values based on human exposure–response data remain the most highly valuable and interpretable assessment values, enough data exists for such values for very few chemicals. As a consequence, efforts have been undertaken to derive HBM assessment values in which external dose based guidance values such as tolerable daily intakes have been translated into equivalent biomonitoring levels. The development of HBM values by the German HBM Commission and Biomonitoring Equivalents by Summit Toxicology has resulted in conceptually similar assessment values. The review of the development of these values provided here demonstrates examples and approaches that can be used to broaden the range of chemicals for which such assessment values can be derived. Efforts to date have resulted in the publication of HBM assessment values for more than 80 chemicals, and now provide tools that can be used for the evaluation of HBM data across chemicals and populations.



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