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Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

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Description of key information

Estimation Programs Interface (EPI) Suite (2016) prediction model was run to predict the half-life in water and sediment for the test compound 3-Phenylpropyl acetate (CAS No. 122 -72 -5). If released in to the environment, 25% of the chemical will partition into water according to the Mackay fugacity model level III and the half-life period of 3-Phenylpropyl acetate in water is estimated to be 15 days (360 hrs). The half-life (15 days estimated by EPI suite) indicates that the chemical is not persistent in water and the exposure risk to aquatic animals is moderate to low whereas the half-life period of 3-Phenylpropyl acetate in sediment is estimated to be 135 days (3240 hrs). However, as the percentage release of test chemical into the sediment is less than 1% (i.e, reported as 0.393%), indicates that 3-Phenylpropyl acetate is not persistent in nature.

Key value for chemical safety assessment

Half-life in freshwater:
15 d
at the temperature of:
25 °C
Half-life in freshwater sediment:
135 d
at the temperature of:
25 °C

Additional information

Estimation Programs Interface (EPI) Suite (2016) prediction model was run to predict the half-life in water and sediment for the test compound 3-Phenylpropyl acetate (CAS No. 122 -72 -5). If released in to the environment, 25% of the chemical will partition into water according to the Mackay fugacity model level III and the half-life period of 3-Phenylpropyl acetate in water is estimated to be 15 days (360 hrs). The half-life (15 days estimated by EPI suite) indicates that the chemical is not persistent in water and the exposure risk to aquatic animals is moderate to low whereas the half-life period of 3-Phenylpropyl acetate in sediment is estimated to be 135 days (3240 hrs). However, as the percentage release of test chemical into the sediment is less than 1% (i.e, reported as 0.393%), indicates that 3-Phenylpropyl acetate is not persistent in nature.