Registration Dossier

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)
Rationale for reliability incl. deficiencies:
other: study performed according to OECD and GLP guidelines
Cross-reference
Reason / purpose:
reference to same study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2000

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
Deviations:
no
GLP compliance:
yes (incl. certificate)

Test material

Reference
Name:
Unnamed
Type:
Constituent

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
sewage, domestic (adaptation not specified)
Duration of test (contact time):
ca. 28 d

Results and discussion

% Degradation
Parameter:
% degradation (O2 consumption)
Value:
ca. 20
Sampling time:
28 d
Details on results:
-

Any other information on results incl. tables

-

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Interpretation of results:
other: not readily biodegradable
Conclusions:
ISO PROPENYL METHYL ETHER was not readily biodegradable under the conditions in the closed bottle test presently performed.
Executive summary:

The relative biodegradation values calculated from the O2 measurements performed during the test period of 28 days revealed significant degradation of ISO PROPENYL METHYL ETHER at both concentrations, i.e. 21 and 20% for the low and high concentration respectively. However, biodegradation of at least 60% was not reached within 10 days of biodegradation exceeding 10%. In conclusion, ISO PROPENYL METHYL ETHER was not readily biodegradable under the conditions in the closed bottle test presently performed.