1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-Hexamethylcyclopenta [g]-2-Benzopyran (HHCB); Phthalic Anhydride; o-Dichlorobenzene (o-DCB) and p-Dichlorobenzene (p-DCB); Science Advisory Committee on Chemicals (SACC) Peer Review; Draft Risk Evaluations; Notice of SACC Meeting; Availability of Draft Documents and Request for Comment

Julie Panko, representing ToxStrategies LLC (funded by the American Chemistry Council’s Phthalic Anhydride TSCA Risk Evaluation Consortium), argues that the EPA's risk evaluation of Phthalic Anhydride overestimates worker exposure. She recommends that the EPA use more granular job titles to avoid misclassification, use task-level data rather than extrapolated 8-hour TWAs, and account for standard operating procedures regarding dermal PPE.

Integral Consulting, representing a chemical manufacturer's perspective, argues that the EPA's draft risk evaluation for phthalic anhydride overestimates occupational risks. The commenter suggests that the EPA relied on biased data sets, used inappropriate uncertainty factors, and failed to account for the chemical's rapid hydrolysis on the skin.