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Environmental fate & pathways

Phototransformation in water

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Description of key information

Bisphenol A has a half-life of 0.5 to 10 days for direct photolysis and 0.7 to 1.3 days for indirect photolysis.

Key value for chemical safety assessment

Half-life in water:
0.5 d

Additional information

Bisphenol A may undergo both direct and indirect photolysis in water. Direct photolysis half-lives of 0.5 to 10 days have been reported from laboratory experiments. Indirect photolysis (in the presence of various dissolved organic matter) half-lives of about 0.7 to 1.3 days have been reported from laboratory experiments.