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Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

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Administrative data

Endpoint:
biodegradation in water and sediment: simulation tests
Type of information:
other: Review
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: 2g. Review of collection of data.

Data source

Reference
Reference Type:
review article or handbook
Title:
Microbial degradation of xenobiotic chemicals
Author:
Colquohoun K O
Year:
1989
Bibliographic source:
Diss Abstr 49: 5499-500

Materials and methods

Test guideline
Qualifier:
no guideline followed
Deviations:
not applicable
Principles of method if other than guideline:
Review of degradation data from various biodegradation tests using different sources of water and sediment.
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Radiolabelling:
not specified

Study design

Oxygen conditions:
not specified
Inoculum or test system:
not specified
Duration of test (contact time):
>= 20 d

Results and discussion

% Degradationopen allclose all
% Degr.:
ca. 0
Parameter:
DOC removal
Sampling time:
20 d
Remarks on result:
other: coarse-filtered Lake Superior harbor water
% Degr.:
ca. 0
Parameter:
DOC removal
Sampling time:
20 d
Remarks on result:
other: ground water and river water
% Degr.:
>= 42 - < 100
Parameter:
DOC removal
Remarks on result:
other: Sampling time not indicated.
Transformation products:
not measured

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
N-methylaniline does not significantly biodegrade in natural waters and ground water, but is completely degraded in sewage treatment systems.