Photodegradation is an important abiotic degradation process to consider for the persistence and fate assessment of chemical substances in the environment. Laboratory investigation of the direct photodegradation of a fragrance ingredient, neogalbone, including quantum yield determination and its validation outdoor, and degradation products examination, was performed. In addition, direct photodegradation half-lives of neogalbone in natural waters were estimated based on its molar absorption spectrum, quantum yield, and the attenuated irradiance at depth of natural waters due to absorption by various levels of dissolved organic matter and scattering by suspended solids. The calculated degradation half-lives in the water compartment were used to estimate the environmental persistence and fate of neogalbone via multimedia modeling.

Aquatic photochemistry of a fragrance ingredient and its use in environmental persistence assessment

2019 Spring National Meeting

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.