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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:
2009
Report Date:
2009

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
other:
Deviations:
not specified
Qualifier:
equivalent or similar to
Guideline:
OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
Deviations:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
liquid

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
activated sludge, industrial (adaptation not specified)
Duration of test (contact time):
ca. 28 d
Initial test substance concentration
Initial conc.:
ca. 100 mg/L
Based on:
test mat.

Results and discussion

% Degradationopen allclose all
Key result
Parameter:
% degradation (O2 consumption)
Value:
ca. 19
St. dev.:
0
Sampling time:
28 d
Key result
Parameter:
% degradation (test mat. analysis)
Value:
> 98
St. dev.:
0
Sampling time:
28 d

Applicant's summary and conclusion

Validity criteria fulfilled:
yes