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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
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed
Year:
1994

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: 92/69/EEC, C4-E
GLP compliance:
yes

Test material

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

Study design

Reference substance
Reference substance:
other: Sodium benzoate

Results and discussion

% Degradation
Value:
41
Sampling time:
28 d
Remarks on result:
other: St. dev. and Parameter are not available
Details on results:
Points of degradation plot (test substance):
26 % degradation after 4 d
30 % degradation after 7 d
33 % degradation after 11 d
32 % degradation after 14 d
29 % degradation after 18 d
41 % degradation after 21 d
39 % degradation after 25 d
41 % degradation after 28 d

BOD5 / COD results

Results with reference substance:
Points of degradation plot (reference substance):
70 % degradation after 4 d
80 % degradation after 7 d
81 % degradation after 11 d
81 % degradation after 14 d
77 % degradation after 18 d
82 % degradation after 21 d
80 % degradation after 25 d
82 % degradation after 28 d

Applicant's summary and conclusion

Interpretation of results:
other: not readily biodegradable