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Dr. Barbara Petersen is a Principal and serves as Director of Exponent's Food & Chemicals practice. Dr. Petersen is internationally recognized for her expertise in exposure assessment methodology food consumption profile modeling and applications of Monte Carlo techniques to conduct risk assessments. Dr. Petersen has pioneered the technical methods for incorporating information about dietary practices actual agricultural practices and commercial food processing technologies into regulatory science issues. Dr. Petersen has successfully applied these approaches to develop software that maximizes the utility of data and provides realistic risk assessments that allow the user to understand the sources of potential exposure. Applications include FQPA compliance regulatory strategies for existing products intake calculations to support new pesticides GRAS self affirmations and preparation of food additive petitions nutrition labeling justifications new food product designs and marketing strategies and product stewardship program designs.
Dr. Petersen has directed the design and conduct of seven statistically based national market basket studies. These studies were designed for different purposes including acute and chronic assessments for pesticides compliance assessments under Proposition 65 and market research. | 