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Partition coefficient

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Description of key information

Major components ranging between 4.78 and 4.83 (literature and QSAR).
Potential concern for classification in aquatic chronic toxicity hazard class (log Kow > 4) and potentially Bioaccumulative in a PBT context.

Key value for chemical safety assessment

Additional information

No study was conducted on the oil itself.

In a Weight of Evidence approach, literature provided data for one of the two major components:

- alpha-pinene log Kow ca 4.83.

For delta-3 -carene, no literature data was available, so the dataset was completed with a valid QSAR estimation: log Kow ca 4.78.

As no CSA is required for the tonnage band of concern, no key value was retained (nor calculated weighted value nor worst-case). However, for Classification purpose, the worst case is considered, which lies above the CLP and DSD threshold values (log Kow >4 and >3 respectively).

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