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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:
weight of evidence
Study period:
1994
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data

Data source

Reference
Reference Type:
publication
Title:
Official Bulletin of Ministry of International Trade and Industry
Author:
Ministry of International Trade and Industry (Japan)
Year:
1994
Bibliographic source:
J-CHECK. Japan Chemicals Collaborative Knowledge Database
Report date:
1994

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
GLP compliance:
not specified

Test material

1
Reference substance name:
Reference substance 001
Cas Number:
133-37-9

Study design

Inoculum or test system:
activated sludge, domestic, non-adapted
Duration of test (contact time):
14 d
Initial test substance concentration
Initial conc.:
100 mg/L
Based on:
test mat.
Parameter followed for biodegradation estimationopen allclose all
Parameter followed for biodegradation estimation:
O2 consumption
Parameter followed for biodegradation estimation:
TOC removal

Results and discussion

% Degradationopen allclose all
Key result
Parameter:
% degradation (O2 consumption)
Value:
76
Sampling time:
14 d
Key result
Parameter:
% degradation (TOC removal)
Value:
100
Sampling time:
14 d

Applicant's summary and conclusion

Interpretation of results:
readily biodegradable