Registration Dossier
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EC number: 945-517-0 | CAS number: -
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From the 26th of January to the 23th of February, 1989
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: read-across from supporting substance (structural analogue or surrogate)
- Remarks:
- Study conducted according to european accepted guideline.
- Justification for type of information:
- Justification for Read Across is detailed in the endpoint summary and it is further detailed in the report attached to the IUCLID section 13.
Cross-reference
- Reason / purpose for cross-reference:
- read-across source
Reference
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Study period:
- From the 26th of January to the 23th of February, 1989
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: read-across from supporting substance (structural analogue or surrogate)
- Remarks:
- Study conducted according to european accepted guideline.
- Justification for type of information:
- Justification for Read Across is detailed in the endpoint summary and it is further detailed in the report attached to the IUCLID section 13.
- Reason / purpose for cross-reference:
- assessment report
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: EEC Directive 79/831, Annex V, C.7
- Principles of method if other than guideline:
- Internal method SOP MBA 002 02
- GLP compliance:
- no
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Details on inoculum:
- Mixture of polyvalent bacteria collected on 25.01.89 in the aeration tank of a domestic sewage treatment plant, ARA Therwil (mixed activated sludge)Bacteria concentration: 30 mg/L
- Duration of test (contact time):
- 28 d
- Initial conc.:
- 100 mg/L
- Details on study design:
- Water /Nutrient: According to the specification of the test methodTemperature: : 20±2°CLighting: noneEstimation technique: Voith Sapromat; O2-Consumtion automatically measured
- Reference substance:
- aniline
- Remarks:
- (Aldrich Chemical Co. Ltd.,No,24228-4)
- Parameter:
- other: BOD versus ThOD
- Value:
- 0
- Sampling time:
- 28 d
- Results with reference substance:
- % of BOD versus ThOD is 98 % .
- Validity criteria fulfilled:
- yes
- Remarks:
- The degradation after 28 days of the reference substance (Anilin) has to be higher than 60 %.
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- The % of BOD versus ThOD is 0% (28d).
The substance is not readilty biodegradable.
No toxicity of the test compound can be found. - Executive summary:
The determination of biodegradation was evaluated on the similar substance 01, according to the EEC Directive 79 -831, Annex V. C.7 based on the OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I)).
The % of BOD versus ThOD was 0 % at 28 days, therefore the similar substance 01 was not biodegradable. No toxicity of the test compound was found.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 989
- Report date:
- 1989
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: EEC Directive 79/831, Annex V, C.7
- Principles of method if other than guideline:
- Internal method SOP MBA 002 02
- GLP compliance:
- no
Test material
- Reference substance name:
- Similar substance 01 of Acid Brown 314:1
- IUPAC Name:
- Similar substance 01 of Acid Brown 314:1
- Test material form:
- solid: particulate/powder
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Details on inoculum:
- Mixture of polyvalent bacteria collected on 25.01.89 in the aeration tank of a domestic sewage treatment plant, ARA Therwil (mixed activated sludge)Bacteria concentration: 30 mg/L
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 100 mg/L
- Details on study design:
- Water /Nutrient: According to the specification of the test methodTemperature: : 20±2°CLighting: noneEstimation technique: Voith Sapromat; O2-Consumtion automatically measured
Reference substance
- Reference substance:
- aniline
- Remarks:
- (Aldrich Chemical Co. Ltd.,No,24228-4)
Results and discussion
% Degradation
- Parameter:
- other: BOD versus ThOD
- Value:
- 0
- Sampling time:
- 28 d
BOD5 / COD results
- Results with reference substance:
- % of BOD versus ThOD is 98 % .
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Remarks:
- The degradation after 28 days of the reference substance (Anilin) has to be higher than 60 %.
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- The % of BOD versus ThOD is 0% (28d).
The substance is not readilty biodegradable.
No toxicity of the test compound can be found. - Executive summary:
The determination of biodegradation was evaluated, according to the EEC Directive 79 -831, Annex V. C.7 based on the OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I)).
The % of BOD versus ThOD was 0 % at 28 days, therefore the similar substance 01 was not biodegradable. No toxicity of the test compound was found.
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