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Environmental fate & pathways

Adsorption / desorption

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Reference
Endpoint:
adsorption / desorption: screening
Type of information:
(Q)SAR
Adequacy of study:
key study
Study period:
2018
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a (Q)SAR model, with limited documentation / justification, but validity of model and reliability of prediction considered adequate based on a generally acknowledged source
Justification for type of information:
Results are calculated with EUSES, which is the default plugged-in environmental exposure assessment tool in Chesar.
Qualifier:
according to
Guideline:
other: Detailed explanations of environmental exposure assessment are available in the Guidance on Information Requirements and Chemical Safety Assessment Chapter R16: Environmental Exposure estimation.
Type of method:
other: QSAR
Computational methods:
Model input: log Kow = 4.9. The Koc-QSAR 'predominantly hydrophobics' in EUSES was selected: Koc = 1.26*Kow^0.81.
Key result
Type:
Koc
Value:
11 700 L/kg
Type:
log Koc
Value:
4.07 dimensionless
Conclusions:
The Koc value is 11700 L/kg.

Description of key information

The Koc is calculated to be 11700 L/kg based on the Koc-QSAR for 'predominantly hydrophobics' incorprated in EUSES, with the log Kow of 4.9 as input as a representative value for the more hydrophobic constituents of Terpene hydrocarbon alcohols.

Key value for chemical safety assessment

Koc at 20 °C:
11 700

Additional information