Registration Dossier
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EC number: 207-300-2 | CAS number: 460-00-4
Biodegradation in water and sediment: simulation tests
Administrative data
Link to relevant study record(s)
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 1-Bromo-4-fluorobenzene(CAS No. 460 -00 -4). If released in to the environment, 31.4 % of the chemical will partition into water according to the Mackay fugacity model level III and the half-life period of 1-Bromo-4-fluorobenzenein water is estimated to be 37.5 days (900 hrs). The half-life (37.5 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 1-Bromo-4-fluorobenzenein sediment is estimated to be 337.5 days (8100 hrs). However, as the percentage release of test chemical into the sediment is less than 1% (i.e, reported as 0.657%), indicates that 1-Bromo-4-fluorobenzene is not persistent in nature.
Key value for chemical safety assessment
- Half-life in freshwater:
- 37.5 d
- at the temperature of:
- 25 °C
- Half-life in freshwater sediment:
- 337.5 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 1-Bromo-4-fluorobenzene(CAS No. 460 -00 -4). If released in to the environment, 31.4 % of the chemical will partition into water according to the Mackay fugacity model level III and the half-life period of 1-Bromo-4-fluorobenzenein water is estimated to be 37.5 days (900 hrs). The half-life (37.5 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 1-Bromo-4-fluorobenzenein sediment is estimated to be 337.5 days (8100 hrs). However, as the percentage release of test chemical into the sediment is less than 1% (i.e, reported as 0.657%), indicates that 1-Bromo-4-fluorobenzene is not persistent in nature.
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