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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
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Qualifier:
according to guideline
Guideline:
OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
GLP compliance:
not specified
Oxygen conditions:
aerobic
Inoculum or test system:
activated sludge, non-adapted
Duration of test (contact time):
14 d
Initial conc.:
100 mg/L
Based on:
test mat.
Reference substance:
aniline
Key result
Parameter:
% degradation (O2 consumption)
Value:
92
Sampling time:
14 d
Interpretation of results:
readily biodegradable
Executive summary:

In a ready test conducted according to the OECD TG 301C, phthalimide was incubated at an initial test concentration of 100 mg/l. 92 % of the phthalimide were mineralized during 14 days (MITI, 1998).

Description of key information

A degradation of 92% was observed within 14 days.

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable
Type of water:
freshwater

Additional information