Registration Dossier

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:
2005
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Accepted calculation method

Data source

Materials and methods

Model:
calculation according to Mackay, Level I
Calculation programme:
Self-made, equivalent to Level I V. 2.11 with standard settings
Release year:
2 005
Media:
air - biota - sediment(s) - soil - water

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
2,2,4(or 2,4,4)-Trimethyladipic acid

Study design

Test substance input data:
Molecular weight:      188.23 g/mol
log Kow:                 1.38
Vapour pressure:         0.001 Pa
Water solubility:       99.0 g/l
Melting point:          35.0 °C
Environmental properties:
Air:         6 000 000 000 m3, 1.206 g/l
Water:           7 000 000 m3, 1.0 g/ml
Soil:               45 000 m3, 1.5 g/ml,  2.0 % OC
Sediment:           21 000 m3, 1.3 g/ml,  5.0 % OC
Susp. Sediment:         35 m3, 1.5 g/ml, 16.7 % OC
Fish:                    7 m3, 1.0 g/ml,  5.0 % fat
Aerosol:              0.12 m3, 1.5 g/ml
Temperature:           20 °C

Results and discussion

Percent distribution in media

Air (%):
0
Water (%):
99.61
Soil (%):
0.19
Sediment (%):
0.19
Susp. sediment (%):
0
Biota (%):
0
Aerosol (%):
0

Any other information on results incl. tables

Air:               0.0001 %
Water:            99.6148 %
Soil:              0.1908 %
Sediment:          0.1929 %
Susp. Sediment:    0.0012 %
Fish:              0.0001 %
Aerosol:           0.00001 %

Applicant's summary and conclusion

Conclusions:
According to a Mackay Level I model calculation, the main target compartment for 2,2,4(or 2,4,4)-trimethyladipic acid will be the hydrosphere (99.6 %), followed by sediment (0.2 %) and soil (0.2 %).
Executive summary:

According to a Mackay Level I model calculation, the main target compartment for 2,2,4(or 2,4,4)-trimethyladipic acid will be the hydrosphere (99.6 %), followed by sediment (0.2 %) and soil (0.2 %).