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Environmental fate & pathways

Biodegradation in water: screening tests

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Reference
Endpoint:
biodegradation in water: ready biodegradability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1995-01-17 - 1995-02-15
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
GLP compliance:
yes
Oxygen conditions:
aerobic
Inoculum or test system:
activated sludge, domestic (adaptation not specified)
Duration of test (contact time):
29 d
Initial conc.:
>= 34 - <= 34.6 mg/L
Based on:
test mat.
Parameter followed for biodegradation estimation:
CO2 evolution
Key result
Parameter:
% degradation (CO2 evolution)
Value:
0
Sampling time:
29 d
Validity criteria fulfilled:
yes
Interpretation of results:
not readily biodegradable
Conclusions:
The test substance did not inhibite the biodegradation of the reference substance. The substance is not biodegradable in this test.

Description of key information

The test substance did not inhibite the biodegradation of the reference substance. The substance is not biodegradable in this test.

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed
Type of water:
freshwater

Additional information