Registration Dossier

Environmental fate & pathways

Phototransformation in air

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The calculated half-life of BPA-DA in air is 8.062 h (at 12 -hour daylight).

Key value for chemical safety assessment

Half-life in air:
8.062 h

Additional information

The rate of photodegradation in air was calculated by QSAR (US EPA EPISuite) based on reaction with hydroxyl radicals (US EPA, 2000). The study was awarded a reliability score of 2 in accordance with the criteria set forth by Klimisch et al. (1997).

Atmospheric photo-oxidation potential, mediated by reaction with hydroxyl radicals, was estimated using the submodel Atmospheric Oxidation Potential for Windows (AOPWIN). A QSAR calculation is considered sufficient as a Tier 1 approach.

The calculated half-life of BPA-DA in air is 8.062 h (at 12 -hour daylight).