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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 for the substance is based on the criteria set out in the “Guidance on information requirements and chemical safety assessment, Chapter R.11: PBT Assessment”.

 

Persistence

The substance is not readily biodegradable based on screening criteria. This was shown in a study according to EU Method C.4-E (24% biodegradation after 28 d) and a BOD test (24.1% biodegradation after 28 d). Thus, the substance meets the screening criterion for persistency and is considered to be potentially persistent (P) or very persistent (vP) in the environment.

 

Bioaccumulation

In accordance with ECHA Guidance R.11 (ECHA, 2017) the substance is not considered to meet the screening criterion for bioaccumulation in aquatic species since the log Kow of 2.8 is below the trigger value of 4.5.

Thus, the substance does not meet the screening criterion for bioaccumulation and it is not considered to be bioaccumulative (B) or very bioaccumulative (vB) in the environment.

Toxicity

Long-term aquatic toxicity results are available for aquatic invertebrates and algae. The lowest long term effect value was identified for aquatic invertebrates with a NOEC (21 d) of 3.2 mg/L which is above the trigger value of 0.01 mg/L. The substance is furthermore not classified for carcinogenicity, mutagenicity, reproduction toxicity or specific target organ toxicity according to Regulation (EC) No 1272/2008 (CLP) and all further amendments (ATPs). Thus, the criteria set out in Annex XIII of Regulation (EC) No 1907/2006 are not met and the substance is not considered to meet the T criterion.

In conclusion, the substance is not considered to be PBT or vPvB.

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