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Diss Factsheets

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:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Reference
Name:
Unnamed
Type:
Constituent

Study design

Inoculum or test system:
activated sludge, domestic (adaptation not specified)
Details on inoculum:
Activated sludge from the municipal wastewater treatment plant Breisgauer Bucht (Forchheim, Germany) was used as inoculum with a concentration corresponding to 30 mg dry solids per litre.
Duration of test (contact time):
28 d

Results and discussion

% Degradation
Key result
Parameter:
% degradation (O2 consumption)
Value:
ca. -12.7
Sampling time:
28 d

Applicant's summary and conclusion

Interpretation of results:
not readily biodegradable
Conclusions:
VSV16 is not ready biodegradable according to the OECD criteria.
Executive summary:

The degradation extent of the test item at the end of the test was -12.7% (mean of three replicates).

The criterion for ready biodegradation was not met (degradation ≥ 60% and fulfilment of 10-d-window) therefore the test item is not ready biodegradable according to the OECD criteria.