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Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Administrative data

Endpoint:
bioaccumulation in aquatic species: fish
Type of information:
(Q)SAR
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
Justification for type of information:
Standard bioaccumulation studies are not applicable to petroleum UVCB substances, therefore in accordance with Annex XI Section 1.3 testing is not scientifically necessary and the endpoint has been fulfilled using QSAR calculations for relevant constituents. Full justifications for this QSAR are presented in 'Attached justification as well as in 'Overal remarks and attachments'' section'. In brief these are justified because:
- the results are obtained from a QSAR model whose scientific validity has been established
- petroleum substances fall within the applicability domain of the QSAR model
- results are adequate for the purposes of risk assessment
- adequate and reliable documentation is provided

Data source

Reference
Reference Type:
other: EPISUITE
Title:
BCFBAF v3.01
Author:
USEPA
Year:
2019
Bibliographic source:
United States Environmental Protection Agency (USEPA) Epi Suite™ model
Report Date:
2019

Materials and methods

Test guideline
Qualifier:
no guideline required
Principles of method if other than guideline:
- Software tool(s) used including version: EPISuite v4.10
- Model(s) used: BCFBAF v3.01
- Model description: see field 'Attached justification'
- Justification of QSAR prediction, see field 'Attached justification'
GLP compliance:
no
Remarks:
calculations

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Bioaccumulation factor
Key result
Conc. / dose:
> 3.16 - <= 1 520 other: L/kg
Type:
BCF
Value:
> 3.16 - <= 1 520 L/kg
Basis:
whole body w.w.
Calculation basis:
steady state
Remarks on result:
other: temperature and pH is not determined

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Remarks:
Results from BCFBAF model showed all BCF <2000.
Conclusions:
BCF for CAS No. 64741 -44 -2, 64742 -13 -8, 68915 -96 -8, 64742 -80 -9, 64741 -77 -1 and 64741 -76 -0 is >3.16 -1.52e+003 L/kg wet-wt (see Results and discussion section, Bioaccumulation factor)
Executive summary:

Standard bioaccumulation studies are not applicable to petroleum UVCB substances, therefore in accordance with Annex XI Section 1.3 testing is not scientifically necessary and the endpoint has been fulfilled using QSAR calculations for relevant constituents based on BCFBAF v3.01. Full justifications for this QSAR are presented in 'Attached justification' as well as in Overall remarks, attachements section ''Attached full study reporrt''. In brief these are justified because:

- the results are obtained from a QSAR model whose scientific validity has been established

- petroleum substances fall within the applicability domain of the QSAR model

- results are adequate for the purposes of risk assessment

BCF for CAS No. 64741 -44 -2, 64742 -13 -8, 68915 -96 -8, 64742 -80 -9, 64741 -77 -1 and 64741 -76 -0 is >3.16 -1.52e+003 L/kg wet-wt (see Results and discussion section, Bioaccumulation factor)