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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:
2000
Report date:
2000

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
Deviations:
no

Test material

Constituent 1
impurity 1
Test material form:
liquid

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
activated sludge, adapted
Duration of test (contact time):
ca. 28 d
Initial test substance concentration
Initial conc.:
ca. 2 mg/L
Based on:
test mat.

Results and discussion

% Degradationopen allclose all
Key result
Parameter:
% degradation (O2 consumption)
Value:
ca. 68.2
St. dev.:
4.6
Sampling time:
28 d
Remarks on result:
other:
Parameter:
% degradation (O2 consumption)
Value:
ca. 19.5
St. dev.:
6.1
Sampling time:
28 d
Remarks on result:
other:

Applicant's summary and conclusion

Validity criteria fulfilled:
yes