On January 11, 2021, EPN submitted comments on the draft scope documents for the risk evaluations of di-isodecyl phthalate (DIDP) and di-isononyl phthalate (DINP) conducted under the reformed Toxic Substances Control Act (TSCA). EPA received requests from a manufacturer for the risk evaluations of DIDP and DINP, which belong to a family of chemicals called phthalates and are widely used in everyday products from flooring and shoe soles to children’s toys and childcare products. The purpose of risk evaluations is to determine whether chemical substances such as DIDP and DINP present unreasonable risks to health or the environment under the conditions of use. EPN believes these chemicals should be evaluated in a combined assessment due to coincident exposure to both chemicals, the overlapping conditions of use and potential health effects, as well as EPA’s own previous support of a combined assessment.
Read a summary.
Read the comments.