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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:
key study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1996
Report Date:
1996

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder

Study design

Oxygen conditions:
not specified
Inoculum or test system:
activated sludge (adaptation not specified)
Duration of test (contact time):
ca. 28 d

Results and discussion

% Degradationopen allclose all
Parameter:
% degradation (O2 consumption)
Value:
4
Sampling time:
4 d
Parameter:
% degradation (O2 consumption)
Value:
5
Sampling time:
7 d
Parameter:
% degradation (O2 consumption)
Value:
3
Sampling time:
11 d
Parameter:
% degradation (O2 consumption)
Value:
3
Sampling time:
14 d
Parameter:
% degradation (O2 consumption)
Value:
11
Sampling time:
18 d
Parameter:
% degradation (O2 consumption)
Value:
14
Sampling time:
21 d
Parameter:
% degradation (O2 consumption)
Value:
5
Sampling time:
25 d
Key result
Parameter:
% degradation (O2 consumption)
Value:
10
Sampling time:
28 d

Applicant's summary and conclusion

Validity criteria fulfilled:
no