Registration Dossier

Environmental fate & pathways

Biodegradation in water: screening tests

Administrative data

Endpoint:
biodegradation in water: ready biodegradability
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: According to OECD Guideline No. 301 E

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1989
Report Date:
1989

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 301 E (Ready biodegradability: Modified OECD Screening Test)
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent

Study design

Duration of test (contact time):
28 d

Results and discussion

% Degradationopen allclose all
Parameter:
% degradation (DOC removal)
Value:
12
Sampling time:
7 d
Parameter:
% degradation (DOC removal)
Value:
22
Sampling time:
14 d
Parameter:
% degradation (DOC removal)
Value:
31
Sampling time:
21 d
Parameter:
% degradation (DOC removal)
Value:
48
Sampling time:
28 d

Applicant's summary and conclusion

Interpretation of results:
inherently biodegradable
Conclusions:
Not readily biodegradable in the 10-d window and after 28 days. Degradationrate was 48%.