Registration Dossier
Registration Dossier
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EC number: 205-531-3 | CAS number: 142-28-9
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: inherent biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 1979
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
Data source
Reference
- Reference Type:
- publication
- Title:
- Unnamed
- Year:
- 1 979
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: APHA "Standard Methods" No. 219 (1971)
- Version / remarks:
- American Public Health Association
- Deviations:
- yes
- Remarks:
- Deviation from Guideline: 0.5 mg/L allyithiourea in each assay added to prevent nitrification
- GLP compliance:
- no
Test material
- Reference substance name:
- 1,3-dichloropropane
- EC Number:
- 205-531-3
- EC Name:
- 1,3-dichloropropane
- Cas Number:
- 142-28-9
- Molecular formula:
- C3H6Cl2
- IUPAC Name:
- 1,3-dichloropropane
- Test material form:
- liquid
Constituent 1
- Specific details on test material used for the study:
- no additional data available
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- sewage, predominantly domestic, non-adapted
- Details on inoculum:
- filtered effluent of biological sanitary waste treatment plant, diluted 10 mL in 500 Ml of freshwater
- Duration of test (contact time):
- 5 d
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Value:
- ca. 16
- Sampling time:
- 5 d
- Remarks on result:
- other: reported to be biodegradable under aerobic conditions
BOD5 / COD results
BOD5 / COD
- Parameter:
- BOD5
- Value:
- 0.19 g O2/g test mat.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
- Conclusions:
- 1,3-dichloropropane was degraded by 16% of the theoretical BOD during a 5 day incubation period
- Executive summary:
Using an oxygen consumption test with sewage from predominantly domestic source (to simulate urban wastewater treatment plant) as an inoculum, 1,3-dichloropropane was degraded by 16% of the theoretical BOD during a 5 day incubation period, suggesting biodegradation could occur under aerobic conditions
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