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Health risk assessment: Triphenyl phosphate (TPP) in nail polish

Please note: As of 1 July 2025, the New Zealand Institute for Public Health and Forensic Science (PHF Science) is the new name for the Institute of Environmental Science and Research (ESR). Research and reports published prior to this date may reference the organisation’s former name.

Summary

The purpose of this report is to develop a generic health risk assessment for dermal and inhalation exposure to triphenyl phosphate (TPP) from its use in nail polish. This report will only consider domestic, non-occupational, incidental exposure to TPP. Exposure scenarios will be developed for the most common or likely exposure events.

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