Registration Dossier

Environmental fate & pathways

Biodegradation in water: screening tests

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
biodegradation in water: ready biodegradability
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Study period:
2018
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Qualifier:
no guideline followed
Principles of method if other than guideline:
EPIWin estimation
GLP compliance:
no
Key result
Remarks on result:
not measured/tested
Validity criteria fulfilled:
not applicable
Interpretation of results:
readily biodegradable
Conclusions:
2-hydroxypropyltrimethylammonium is calculated to be readily biodegradable by the US EPA EPIwin estimation tool.
Executive summary:

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model)        :  0.8500

Biowin2 (Non-Linear Model)    :  0.9204

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model):  3.0979 (weeks      )

Biowin4 (Primary Survey Model) :  3.8067 (days       )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model)   :  0.5128

Biowin6 (MITI Non-Linear Model):  0.6857

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): 0.0730

Ready Biodegradability Prediction:  YES

Description of key information

2-hydroxypropyltrimethylammonium is calculated to be readily biodegradable by the US EPA EPIwin estimation tool.

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable
Type of water:
freshwater

Additional information