Registration Dossier

Classification & Labelling & PBT assessment

PBT assessment

Currently viewing:

Administrative data

PBT assessment: overall result

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

OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test) - activated sludge, domestic, non-adapted - Readily biodegradable.

The shake flask method at pH 7 was applied for the determination of the partition coefficient (Pow) of MEA Polyborate 1:3 and 1:1. The Pow value of the test item was 1.4´10-1. It corresponds with a log Pow value of -0.9 for both ratios. The shake flask method pH 7 was applied for the determination of the partition coefficient (Pow) of MEA Polyborate 1:3 and 1:1. The Pow value of the test item was 3.3´10-3. It corresponds with a log Pow value of -2.5 both ratios.

On the basis of the ECHA Guidance on information requirements and chemical safety assessment (Chapter R.11: PBT Assessment) and the available short-term toxicity data it is not possible to assess whether the Toxicity (T) criterion has been fulfilled. The available short-term toxicity data for MEA Polyborates (1:1 and 1:3) indicates that the lowest reliable acute E(L)C50 values is 26 mg active ingredient /l for the freshwater algae Pseudokirchneriella subcapitata. The corresponding NOEC value from the study is 3.2 mg active ingredient /l which is higher than the toxicity criterion of 0.01 mg l-1.