Registration Dossier

Administrative data

Endpoint:
field studies
Type of information:
experimental study
Adequacy of study:
other information
Study period:
1973 - 1975
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable, well documented publication which meets basic scientific principles

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
Persistence of propanil, DCA, and TCAB in soil and water under flooded rice culture
Author:
Deuel LE, Brown KW, Turner FC, Westfall DG, Price JD
Year:
1977
Bibliographic source:
J. Environ. Qual. 6, 127-132
Reference Type:
publication
Title:
Unnamed
Year:
2006

Materials and methods

Test guideline
Qualifier:
no guideline followed
GLP compliance:
no
Type of measurement:
degradation of propanil
Media:
field experiment, rice cultivation, water sediment

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): propanil (3,4-dichloropropionanilide)

Results and discussion

Any other information on results incl. tables

Propanil (N-(3,4-dichlorophenyl)-propanamide)

3,4-DCA is also a metabolite of the herbicide propanil. After the application of 6.8 kg propanil/ha (which is an excessive application, the authors state an amount of 3.4 kg/ha to be normal), 3,4-DCA was measured in the top soil layer after the field was flooded. Concentrations of 29 mg/kg after 3 days, 8 mg/kg after 7 and 6 mg/kg after 14 days were detected, after this times only traces of propanil were present.

Applicant's summary and conclusion