Registration Dossier
Registration Dossier
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EC number: 206-376-4 | CAS number: 334-48-5
Sediment toxicity
Administrative data
Link to relevant study record(s)
- Endpoint:
- sediment toxicity: long-term
- Data waiving:
- other justification
- Justification for data waiving:
- other:
Reference
Description of key information
Toxic effects on sediment dwelling invertebrates are not expected.
Key value for chemical safety assessment
Additional information
No studies on long-term sediment toxicity are available for this substance. Due to the estimated log Koc of 2.64 (ChemProp v6.4, Franco, Fu & Trapp model for ionizable substances, estimated from log Kow of 4.1, pKa of 5.7 and pH 7) a low adsorption to sediment is anticipated. In addition, decanoic acid has been shown to be readily biodegradable, hence it can be assumed that the substance will be completely biologically degraded within the sediment transport process. Therefore, no chronic exposure of sediment dwelling organisms is expected. Furthermore, fatty acids occur in sediment and soils naturally, are part of physiological pathways and can be used as energy source. Thus, toxic effects caused by the decanoic acid are implausible.
In conclusion, due to a) an estimated log Koc of 2.64 b) the lack of chronic exposure and c) the fact that fatty acids are part of physiological pathways, toxic effects on sediment dwelling invertebrates are not expected.
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