Registration Dossier
Registration Dossier
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EC number: 211-892-8 | CAS number: 706-14-9
PBT assessment
Administrative data
PBT assessment: overall result
- PBT status:
- the substance is not PBT / vPvB
- Justification:
γ-decalactone is readily biodegradable and has a log octanol-water partition coefficient at 3.0, therefore does not meet the criterion for persistence (P) and bioaccumulation (B). For the T criterion, the most sensitive species in acute conditions is aquatic invertebrates with an estimated EC50 value greater than 0.1 mg/L (at 13.1 mg/L). In addition, two chronic EC10 values were determined for the read-across substance, γ-undecalactone (considered more toxic than γ-decalactone), on aquatic invertebrates and algae. Based on data available, the EC10 for algal growth rate is 11.2 mg/L. The lowest EC10 value based on a read-across substance, undecalactone, which is expected to be more toxic than decalactone, was determined at 1.02 mg/L for chronic daphnid reprotoxicity. In conclusion, as these values are both greater than 0.01 mg/L and the substance is not classified as Carcinogenic (category 1 or 2), mutagenic (category 1 or 2), or toxic for reproduction (category 1, 2 or 3) and there is no other evidence of chronic toxicity, γ-decalactone does not meet the criterion for toxicity (T).
In conclusion, γ-decalactone is not considered PBT or vPvB.
- Likely routes of exposure:
None
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