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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Biodegradation in water: screening tests

Administrative data

Endpoint:
biodegradation in water: screening tests
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1992
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study performed according to Japanese (MITI/MHW) guidelines for a ready biodegradation study using commercial DecaBDE as the test article.

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
Biodegradation and bioaccumulation data based on the CSCL Japan
Author:
Anonymous
Year:
1992
Bibliographic source:
Eds: Chemicals Inspection & Testing Institute, Tokyo, Japan
Reference Type:
publication
Title:
Unnamed
Year:
2002

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
other: ready biodegradation test of MITI/MHW Japan
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 302 C (Inherent Biodegradability: Modified MITI Test (II))
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Bis(pentabromophenyl) ether
EC Number:
214-604-9
EC Name:
Bis(pentabromophenyl) ether
Cas Number:
1163-19-5
Molecular formula:
C12Br10O
IUPAC Name:
bis(pentabromophenyl) ether

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
mixture of sewage, soil and natural water
Duration of test (contact time):
2 wk
Initial test substance concentration
Initial conc.:
100 mg/L
Based on:
test mat.

Results and discussion

% Degradation
Parameter:
% degradation (O2 consumption)
Value:
0
Sampling time:
14 d

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Interpretation of results:
under test conditions no biodegradation observed
Conclusions:
DecaBDE was not readily biodegradable by a mixture of sewage sludge, soil, sediment, and water under aerobic conditions.
Executive summary:

DecaBDE was not readily biodegradable by a mixture of sewage sludge, soil, sediment, and water under aerobic conditions.