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Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

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Administrative data

Endpoint:
biodegradation in water: sediment simulation testing
Type of information:
experimental study
Adequacy of study:
key study

Data source

Referenceopen allclose all

Reference Type:
study report
Title:
Unnamed
Year:
2009
Report Date:
2009
Reference Type:
study report
Title:
Unnamed
Year:
2014
Report Date:
2014

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 308 (Aerobic and Anaerobic Transformation in Aquatic Sediment Systems)

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Radiolabelling:
yes

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
natural water / sediment
Duration of test (contact time):
> 0 - <= 100 d
Initial test substance concentration
Initial conc.:
0.07 mg/L
Based on:
test mat.

Results and discussion

Mean total recoveryopen allclose all
Compartment:
other:
% Recovery:
0.3
Compartment:
other:
% Recovery:
103
% Degradationopen allclose all
% Degr.:
ca. 5
Parameter:
radiochem. meas.
Sampling time:
1 d
Remarks on result:
other:
% Degr.:
ca. 10.6
Parameter:
radiochem. meas.
Sampling time:
28 d
Remarks on result:
other:
% Degr.:
ca. 16.7
Parameter:
radiochem. meas.
Sampling time:
100 d
Remarks on result:
other:
% Degr.:
ca. 9.8
Parameter:
radiochem. meas.
Sampling time:
1 d
Remarks on result:
other:
% Degr.:
ca. 10.1
Parameter:
radiochem. meas.
Sampling time:
28 d
Remarks on result:
other:
% Degr.:
ca. 17.3
Parameter:
radiochem. meas.
Sampling time:
100 d
Remarks on result:
other:
Half-life of parent compound / 50% disappearance time (DT50)open allclose all
Compartment:
sediment
DT50:
ca. 472 d
Type:
(pseudo-)first order (= half-life)
Remarks on result:
other:
Compartment:
sediment
DT50:
ca. 592 d
Type:
(pseudo-)first order (= half-life)
Remarks on result:
other:

Applicant's summary and conclusion

Validity criteria fulfilled:
yes