Registration Dossier
Registration Dossier
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EC number: 214-604-9 | CAS number: 1163-19-5
Long-term toxicity to aquatic invertebrates
Administrative data
- Endpoint:
- long-term toxicity to aquatic invertebrates
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1996-1997
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study performed according to international guidelines and GLPs.
Data source
Referenceopen allclose all
- Reference Type:
- publication
- Title:
- Unnamed
- Year:
- 2 002
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 997
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 850.1300 (Daphnid Chronic Toxicity Test)
- GLP compliance:
- yes
Test material
- Reference substance name:
- Octabromodiphenyl ether
- IUPAC Name:
- Octabromodiphenyl ether
- Details on test material:
- The commerical octabromodiphenyl ether was used as test article. In consultation with the UK, DecaBDE was not tested due to its extremely low water solubility (<0.1 ug/L) and difficult analysis.
Constituent 1
Sampling and analysis
- Analytical monitoring:
- yes
Test solutions
- Vehicle:
- yes
Test organisms
- Test organisms (species):
- Daphnia magna
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 21 d
- Post exposure observation period:
- no
Test conditions
- Hardness:
- see EU RAR
- Test temperature:
- see EU RAR
- pH:
- see EU RAR
- Dissolved oxygen:
- see EU RAR
- Salinity:
- see EU RAR
- Nominal and measured concentrations:
- up to 2 ug/L (solubility limit for octabromodiphenyl ether)
- Reference substance (positive control):
- no
Results and discussion
Effect concentrations
- Duration:
- 21 d
- Dose descriptor:
- NOEC
- Effect conc.:
- > 2 µg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- other: survival, reproduction, growth
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- DecaBDE is not expected to be chronically toxic to Daphnia at the limit of its solubility.
- Executive summary:
EU RAR DecaBDE, pg 92: "A long-term Daphnia test has been carried out using octabromodiphenyl ether. No effects on survival, reproduction or growth were seen over 21 days at concentrations up to 2 µg/l (solubility limit) (see the assessment of that substance for further details). Taken as a whole, it is clear that the aquatic toxicity and bioaccumulation potential of the polybrominated diphenyl ethers (penta-, octa- and decabromodiphenyl ether) decreases with increasing bromination and therefore it is unlikely that decabromodiphenyl ether will show any toxic effects to invertebrates at concentrations below its solubility limit."
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