Registration Dossier

Environmental fate & pathways

Biodegradation in water: screening tests

Administrative data

Endpoint:
biodegradation in water: ready biodegradability
Adequacy of study:
other information

Data source

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

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: Annex to Directive 92/69/EEC, Procedure C.4-C "CO2 Evolution test" (OECD Procedure 301B, adopted 1992) US EPA, OPPTS Method 835.3110 (m) (adopted January 1998).
GLP compliance:
yes

Study design

Reference substance
Reference substance:
other: Sodium benzoate

Results and discussion

% Degradation
Value:
53
Sampling time:
28 d
Details on results:
Points of degradation plot (test substance):
0 % degradation after 2 d
0 % degradation after 4 d
3 % degradation after 6 d
13 % degradation after 8 d
22 % degradation after 9 d
30 % degradation after 10 d
40 % degradation after 13 d
47 % degradation after 17 d
51 % degradation after 22 d
53 % degradation after 28 d
54 % degradation after 29 d

BOD5 / COD results

Results with reference substance:
Points of degradation plot (reference substance):
23 % degradation after 2 d
45 % degradation after 4 d
61 % degradation after 6 d
68 % degradation after 8 d
71 % degradation after 9 d
73 % degradation after 10 d
75 % degradation after 13 d
78 % degradation after 17 d
81 % degradation after 22 d
84 % degradation after 28 d
85 % degradation after 29 d

Applicant's summary and conclusion

Interpretation of results:
other: not readily biodegradable