Registration Dossier

Administrative data

Endpoint:
phototransformation in soil
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: MIGRATED DATASET; Study meets generally accepted scientific principles

Data source

Referenceopen allclose all

Title:
No information
Author:
Allmaier GM and Schmid ER (1986). Effects of light on the organophosphorus fungicide ditalimfos and two degradation products examined in rainwater and on soil surface in a long-term study. Bodenkultur 37 (2), 177-186.
Reference Type:
secondary source
Title:
Phthalimide - CAS No: 85-41-6
Author:
OECD SIDS
Year:
2005
Bibliographic source:
SIDS Initial Assessment Report for 20th SIAM, UNEP Publications

Materials and methods

Principles of method if other than guideline:
Method: other (measured): radiation apparatus as described by Allmaier and Schmid (1985)
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
IUCLID4 Test substance: other TS: Ditalimfos, > 99.5 % purity, purchased from Dow Chemical Company

Study design

Light source:
other: 5 daylight-lamps of different thermoluminescence
Light spectrum: wavelength in nm:
> 290

Results and discussion

Transformation products:
yes

Any other information on results incl. tables

MIGRATED DATASET;
The same main degradation products were found regardless of the light conditions: 0,0-diethyl-phosphoro-amidothioate (main product) and phthalimide.
Ditalimfos t1/2 = 428 h (illuminated soil)
Ditalimfos t1/2 = 442 h (nonilluminated soil)
Phthalimide reach the maximum after 12 days.
Phthalimide could not be detected after 48 days in both soils. Ditalimfos was not detectable in both test systems after 96 days

Applicant's summary and conclusion