Registration Dossier

Environmental fate & pathways

Biodegradation in water: screening tests

Administrative data

Endpoint:
biodegradation in water: ready biodegradability
Type of information:
read-across based on grouping of substances (category approach)
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Justification for type of information:
Saturated perfluorocarbons form a class that exhibits very similar propertioes.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2005

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 310 (Ready Biodegradability - CO2 in Sealed Vessels (Headspace Test)
Deviations:
no
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
activated sludge, domestic (adaptation not specified)
Duration of test (contact time):
ca. 28 d
Initial test substance concentration
Initial conc.:
100 other: ml/l
Parameter followed for biodegradation estimation
Parameter followed for biodegradation estimation:
inorg. C analysis

Results and discussion

% Degradation
Parameter:
% degradation (inorg. C analysis)
Value:
-1
Sampling time:
28 d

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Interpretation of results:
not inherently biodegradable
Conclusions:
Material does not biodegrade.
Executive summary:

Material does not biodegrade.