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Diss Factsheets

Environmental fate & pathways

Distribution modelling

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Administrative data

Endpoint:
distribution modelling
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Study period:
Not applicable
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The reliability rating is 2 because the data are calculated.

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
Evaluating the environmental fate of a variety of types of chemicals using the EQC model
Author:
Mackay D, DiGuardo A, Paterson S and Cowan C
Year:
1996
Bibliographic source:
Environ. Toxicol. Chem. 15: 1627-1637
Reference Type:
other: Mathematical model
Title:
EQC Model ver. 1.01
Author:
Mackay D, DiGuardo A, Paterson S and Cowan C
Year:
1997
Bibliographic source:
Available from the Environmental Centre, Trent University, Canada.
Reference Type:
publication
Title:
Multimedia environmental models: The fugacity approach
Author:
Mackay D
Year:
2001
Bibliographic source:
Second edition, pp. 1-261, Lewis Publisher, Boca Raton, Fl, USA

Materials and methods

Model:
calculation according to Mackay, Level I
Calculation programme:
Level I simulation using the Mackay Multimedia Environmental Model, version 3.0, released 2004, available at the Canadian Environmental Modelling Centre, Trent University, Canada.
Release year:
1 997
Media:
air - biota - sediment(s) - soil - water

Test material

Constituent 1
Reference substance name:
Diundecyl phthalate, branched and linear
EC Number:
287-401-6
EC Name:
Diundecyl phthalate, branched and linear
Cas Number:
85507-79-5
IUPAC Name:
diundecyl phthalate
Constituent 2
Reference substance name:
1,2-benzenedicarboxylic acid, di-C10-12-branched alkyl esters, C11-rich
IUPAC Name:
1,2-benzenedicarboxylic acid, di-C10-12-branched alkyl esters, C11-rich

Study design

Test substance input data:
Parameter Value w/ Units

Molecular Weight = 475
Temperature = 25°C
Log Kow = 10.3
Water Solubility = 0.00000441 g/m3
Vapor Pressure = 0.000000497 Pa
Melting Point = -45°C

Results and discussion

Percent distribution in media

Air (%):
0
Water (%):
0
Soil (%):
97.7
Sediment (%):
2.2
Susp. sediment (%):
0.1
Biota (%):
0

Applicant's summary and conclusion

Conclusions:
The Mackay Level I equilibrium model estimates that di-isoundecyl phthalate ester will partition largely to the soil compartment (approximately 98%), followed by the sediment (approximately 2%) compartment.
Executive summary:

The Mackay Level I equilibrium model estimates that di-isoundecyl phthalate ester will partition largely to the soil compartment (approximately 98%), followed by the sediment (approximately 2%) compartment.