Registration Dossier

Administrative data

Endpoint:
distribution modelling
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study well documented, includes study protocol; meets generally accepted scientific principles, acceptable for assessment.

Data source

Referenceopen allclose all

Reference Type:
study report
Title:
Unnamed
Reference Type:
other company data
Title:
Unnamed

Materials and methods

Model:
other: other (measurement)
Media:
water - sediment

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Dequest 2001 Lot No 9/1/79 Pilot Plant Run, radiolabelled
(supplier not stated) and unlabelled. Dequest 2001 = dry
(presumably anhydrous) substance

Results and discussion

Any other information on results incl. tables

K(sediment-water) (Day 8): values are expressed in
litres/kilogram.
0.05 ppm: 1200 (soft water), 1600 (hard water)
0.10 ppm: 1500 (soft water), 1500 (hard water)
 1.0 ppm: 1100 (soft water), 1400 (hard water)
 5.0 ppm:  340 (soft water), 1000 (hard water)

The 5.0 ppm test concentration may not have reached
equilibrium over the test period due to saturation of some
of
the sediment adsorption sites. Therefore, a mean value
applicable to soft water is 1270 l/kg, and to hard water,
1500 l/kg.

The adsorption coefficient Koc has been obtained from the
mean of the above data and a value of Koc = 11740, log Koc =
4.07 applies; this is not part of the report.

Data for adsorption of ATMP to a variety of non-standard
substrates are available and reviewed (Annex III to the SIARs).

Applicant's summary and conclusion