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PBT assessment

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PBT assessment: overall result

PBT status:
the substance is not PBT / vPvB
Justification:

The PBT Assessment is based on the criteria set out in the “Guidance on information requirements and chemical safety assessment, Chapter R.11: PBT Assessment” (ECHA, 2017).

 

Persistence 

The substances of the Alcohol Ethoxylates (AE) category are readily biodegradable. All available screening studies, investigating the ready biodegradability of the substances, demonstrated degradation rates > 60% after 28 days. The substances of the Alcohol Ethoxylates (AE) category are expected to be ultimately degraded in the environment and persistence of the substances is unlikely. Based on the available results the substances of the Alcohol Ethoxylates (AE) category do not meet the screening criterion for persistence and is not considered to be P or vP.

 

Bioaccumulation 

The substances of the Alcohol Ethoxylates (AE) categoryhave a limited potential to bioaccumulate. Overall, the potential to bioaccumulate increases with the alkyl chain length of the substances. This correlation is also reflected by the higher log Pow of long-chain AE substances. Literature data on the bioaccumulation potential of alcohol ethoxylates indicate a rapid biotransformation and elimination of the substances (Tolls, 1998; Tolls et al., 2000). A positive correlation between elimination rate alkyl chain length has been demonstrated for alcohol ethoxylates. Due to a rapid metabolisation of the substancesa long-term retention of AE in tissue is not excepted.

Alcohol Ethoxylates (AE) category are not considered to be B or vB.

 

Toxicity 

All available short-term effect concentrations are > 0.1 mg/L (fish, aquatic invertebrates, algae) and no long-term effects with NOEC or EC10 <0.01 mg/L were determined for the substance.

The substance does not meet the criteria for classification as s not classified according to the consolidated version of Regulation (EC) No 1272/2008 as carcinogenic (category 1A or 1B), germ cell mutagenic (category 1A or 1B), or toxic for reproduction (category 1A, 1B or 2) or as STOT RE 1 or STOT RE 2 according to the CLP Regulation. Thus, the substance does not meet the T criterion.

 

Conclusion:

The substance is not PBT/vPvB.