Registration Dossier
Registration Dossier
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EC number: 202-448-4 | CAS number: 95-76-1
Biodegradation in water and sediment: simulation tests
Administrative data
- Endpoint:
- biodegradation in water: sewage treatment simulation testing
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: guideline study, publication without detailed information
Data source
Referenceopen allclose all
- Reference Type:
- publication
- Title:
- Messung der Bioelimination von Chloranilinen
- Author:
- Janicke W, Hilge G
- Year:
- 1 980
- Bibliographic source:
- GWF-Wasser/Abwasser 121, 131-135
- Reference Type:
- publication
- Title:
- Unnamed
- Year:
- 2 006
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 303 A (Simulation Test - Aerobic Sewage Treatment. A: Activated Sludge Units)
- Principles of method if other than guideline:
- Method: other: Confirmatory Test (Detergentiengesetz), DIN 38412 Teil 24
- GLP compliance:
- not specified
Test material
- Reference substance name:
- 3,4-dichloroaniline
- EC Number:
- 202-448-4
- EC Name:
- 3,4-dichloroaniline
- Cas Number:
- 95-76-1
- Molecular formula:
- C6H5Cl2N
- IUPAC Name:
- 3,4-dichloroaniline
Constituent 1
Study design
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Details on inoculum:
- adapted on p-chloraniline
Initial test substance concentration
- Initial conc.:
- 20 mg/L
Results and discussion
% Degradation
- % Degr.:
- 15 - 20
- Sampling time:
- 50 d
Applicant's summary and conclusion
- Executive summary:
The "Confirmatory Test" in a simulated aerobic sewage treatment showed a degradation (elimination) of 15 -20%.
Therefore 3,4 -DCA is regarded as not biodegradable in municipal waste water treatment plants.
Lower adsorbtion was determined with glass materials compared to pvc equipment.
The tested 3,4 -DCA concentrations were in the range of measured toxicity for bacteria.
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