Registration Dossier
Registration Dossier
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EC number: 203-608-6 | CAS number: 108-70-3
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
- Justification for type of information:
- Annex XV dossier of the substance. The ready biodegradability was studied with a method corresponding to the OECD TG 301C, Modified MITI (I) test (MITI-List, 2002).
Data source
Reference
- Reference Type:
- other: Annex XV report
- Title:
- PROPOSAL FOR IDENTIFICATION OF A SUBSTANCE AS A CMR CAT 1 OR 2, PBT, VPVB OR A SUBSTANCE OF AN EQUIVALENT LEVEL OF CONCERN
- Author:
- Germany
- Year:
- 2 010
- Bibliographic source:
- https://echa.europa.eu/documents/10162/c47ecb40-5a44-6906-0433-6a90905508c7
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- GLP compliance:
- not specified
Test material
- Reference substance name:
- 1,3,5-trichlorobenzene
- EC Number:
- 203-608-6
- EC Name:
- 1,3,5-trichlorobenzene
- Cas Number:
- 108-70-3
- Molecular formula:
- C6H3Cl3
- IUPAC Name:
- 1,3,5-trichlorobenzene
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Details on inoculum:
- Activated sludge concentration 30 mg/l
Initial test substance concentration
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- O2 consumption
Reference substance
- Reference substance:
- not specified
Results and discussion
% Degradation
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 0
- Sampling time:
- 14 d
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- The degradation measured as Biochemical Oxygen Demand (BOD) was 0% after 14 days.
- Executive summary:
The ready biodegradability was studied with a method corresponding to the OECD TG 301C, Modified MITI (I) test (MITI-List, 2002). The test concentration was 100 mg/l and activated sludge concentration 30 mg/l. In the aerobic study, the degradation measured as Biochemical Oxygen Demand (BOD) was 0% after 14 days.
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