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Environmental fate & pathways

Biodegradation in water: screening tests

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Administrative data

Endpoint:
biodegradation in water: ready biodegradability
Type of information:
experimental study
Adequacy of study:
other information
Study period:
February, 22- March, 22, 1989
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Guideline study, basic data given

Data source

Referenceopen allclose all

Reference Type:
study report
Title:
Unnamed
Year:
1989
Reference Type:
secondary source
Title:
3,4-dichlorobut-1-ene
Author:
ECB
Year:
2000
Bibliographic source:
ECB IUCLID dataset
Reference Type:
secondary source
Title:
3,4-Dichlorobut-1-ene - CAS No: 760-23-6
Author:
OECD SIDS
Year:
2003
Bibliographic source:
SIDS Initial Assessment Report for 11th SIAM, UNEP Publications

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
other: EG Guideline 79/831 EWG, part 5
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
GLP compliance:
not specified

Test material

Constituent 1
Reference substance name:
720-23-6
IUPAC Name:
720-23-6
Constituent 2
Chemical structure
Reference substance name:
3,4-dichlorobut-1-ene
EC Number:
212-079-0
EC Name:
3,4-dichlorobut-1-ene
Cas Number:
760-23-6
Molecular formula:
C4H6Cl2
IUPAC Name:
3,4-dichlorobut-1-ene
Details on test material:
- Name of test material (as cited in study report): 3,4-Dichlorbuten
- Analytical purity: not stated in original report ( 99.6% reported in ECD IUCLID4 dataset)

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
sewage, predominantly domestic (adaptation not specified)
Details on inoculum:
- Source of inoculum/activated sludge: laboratory treatment plant
- Laboratory culture: yes
Duration of test (contact time):
28 d
Parameter followed for biodegradation estimation
Parameter followed for biodegradation estimation:
O2 consumption
Reference substance
Reference substance:
aniline

Results and discussion

% Degradationopen allclose all
Parameter:
% degradation (O2 consumption)
Value:
0
Sampling time:
5 d
Parameter:
% degradation (O2 consumption)
Value:
0
Sampling time:
15 d
Parameter:
% degradation (O2 consumption)
Value:
0
Sampling time:
28 d

BOD5 / COD results

Results with reference substance:
100% after 28 d

Applicant's summary and conclusion

Interpretation of results:
under test conditions no biodegradation observed