Registration Dossier

Administrative data

Endpoint:
biodegradation in soil
Type of information:
experimental study
Adequacy of study:
key study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1991
Report Date:
2001

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other:
Test type:
laboratory

Test material

Reference
Name:
Unnamed
Type:
Constituent
Radiolabelling:
yes

Study design

Oxygen conditions:
aerobic
Soil classification:
USDA (US Department of Agriculture)
Soil propertiesopen allclose all
Soil no.:
#1
Soil type:
sand
% Clay:
2
% Silt:
8
% Sand:
90
% Org. C:
0.5
pH:
5.7
CEC:
15.87 meq/100 g soil d.w.
Soil no.:
#2
Soil type:
loamy sand
% Clay:
7.5
% Silt:
15.4
% Sand:
77.1
% Org. C:
2.17
pH:
5.7
CEC:
71.73 meq/100 g soil d.w.
Soil no.:
#3
Soil type:
sandy loam
% Clay:
7.4
% Silt:
26.5
% Sand:
66.2
% Org. C:
0.71
pH:
6.5
CEC:
24.13 meq/100 g soil d.w.
Duration of test (contact time)open allclose all
Soil No.:
#1
Duration:
28 h
Soil No.:
#2
Duration:
20 h
Soil No.:
#3
Duration:
40 h
Initial test substance concentration
Initial conc.:
ca. 128 g/ha d.w.
Based on:
test mat.

Results and discussion

% Degradationopen allclose all
Soil No.:
#1
% Degr.:
4.9
Parameter:
radiochem. meas.
Sampling time:
28 h
Soil No.:
#2
% Degr.:
3.52
Parameter:
radiochem. meas.
Sampling time:
20 h
Soil No.:
#3
% Degr.:
8.2
Parameter:
radiochem. meas.
Sampling time:
40 h

Applicant's summary and conclusion