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)
GLP compliance:
yes

Study design

Reference substance
Reference substance:
other: Sodium benzoate

Results and discussion

% Degradation
Value:
42
Sampling time:
28 d
Details on results:
Points of degradation plot (test substance):
2 % degradation after 2 d
4 % degradation after 3 d
5 % degradation after 4 d
6 % degradation after 6 d
8 % degradation after 8 d
14 % degradation after 10 d
25 % degradation after 13 d
31 % degradation after 15 d
35 % degradation after 17 d
38 % degradation after 21 d
42 % degradation after 28 d
43 % degradation after 29 d

BOD5 / COD results

Results with reference substance:
Points of degradation plot (reference substance):
20 % degradation after 2 d
40 % degradation after 3 d
53 % degradation after 4 d
64 % degradation after 6 d
71 % degradation after 8 d
76 % degradation after 10 d
81 % degradation after 13 d
83 % degradation after 15 d
84 % degradation after 17 d
86 % degradation after 21 d
87 % degradation after 28 d
88 % degradation after 29 d

Applicant's summary and conclusion

Interpretation of results:
other: not readily biodegradable