Registration Dossier

Diss Factsheets

Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

Administrative data

Endpoint:
biodegradation in water: simulation testing on ultimate degradation in surface water
Type of information:
experimental study
Adequacy of study:
supporting study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report date:
2010

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 309 (Aerobic Mineralisation in Surface Water - Simulation Biodegradation Test)

Test material

Constituent 1
Test material form:
liquid
Radiolabelling:
yes

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
natural water: freshwater
Duration of test (contact time):
27 d
Initial test substance concentrationopen allclose all
Initial conc.:
10 µg/L
Based on:
test mat.
Initial conc.:
100 µg/L
Based on:
test mat.

Results and discussion

Mean total recoveryopen allclose all
Compartment:
other:
% Recovery:
58.1
Remarks on result:
other:
Compartment:
natural water: freshwater
% Recovery:
65.8
Remarks on result:
other:
Compartment:
other:
% Recovery:
88.6
Remarks on result:
other:
Compartment:
natural water: freshwater
% Recovery:
76.3
Remarks on result:
other:
Half-life of parent compound / 50% disappearance time (DT50)open allclose all
Compartment:
natural water: freshwater
DT50:
14 d
Temp.:
20 °C
Key result
Compartment:
natural water: freshwater
DT50:
29.7 d
Temp.:
12 °C

Applicant's summary and conclusion