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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Administrative data

Link to relevant study record(s)

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Endpoint:
bioaccumulation in aquatic species: fish
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance has a low potential for bioaccumulation based on log Kow <=3
Endpoint:
bioaccumulation in sediment species, other
Remarks:
Calculation
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Qualifier:
no guideline followed
Principles of method if other than guideline:
Bioconcentration factor BCF of Guanidine was calculated using BCFBAF v3.01 EPI Suite 4.0
GLP compliance:
no
Type:
BCF
Value:
3.162 other: L/kg wet-wt
Remarks on result:
other: regression-based method
Type:
BCF
Value:
0.893 dimensionless
Calculation basis:
other: estimated log Kow used: -1.63
Remarks on result:
other: Arnot-Gobas method
Validity criteria fulfilled:
not applicable
Conclusions:
The calculation yielded a BCF = 0.8935 according to the Arnot-Gobas method and based on the estimated log Kow = -1.63 and BCF = 3.162 L/kg wet-wt according to the regression-based method. The result indicates a low potential for bioaccumulation.
Executive summary:

The bioconcentration factor BCF of Guanidine was calculated using EpiWeb4.0, BCFBAFv3.01. The calculation yielded a BCF=3.162 L/kg wet-wt (regression-based) respective BCF=0.8935 (dimensionless) (Arnot-Gobas mehtod with logKow=-1.63).

The result indicates a low potential for bioaccumulation.

Due to mission information about the applicability of the calculation model with respect to the substance under investigetion, the reslut and the conclusion thereof should be treated with care.

Description of key information

A low potential for bioaccumulation is expected.


Key value for chemical safety assessment

BCF (aquatic species):
3.2 L/kg ww

Additional information

According to the measured log Kow < -1.7 a low potential for bioaccumulation is expected.

The calculation yielded a BCF = 0.8935 according to the Arnot-Gobas method and based on the estimated log Kow = -1.63 and

BCF = 3.162 L/kg wet-wt according to the regression-based method. The result indicates a low potential for bioaccumulation.