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:
calculated 2013-04-03
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: accepted calculation method

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2013
Report Date:
2013

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:
2 013
Media:
air - biota - sediment(s) - soil - water

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
Constituent
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
tridecanedioic acid as used in studies on input data

Study design

Test substance input data:
Molecular weight: 244.33 g/mol
log Kow: 3.30
Vapour pressure: 0.000000095 Pa
Water solubility: 0.01015 g/l
Melting point: 113.6 °C
Environmental properties:
Air: 6 000 000 000 m³, 1.206 kg/m³
Water: 7 000 000 m³, 1000 kg/m³
Soil: 45 000 m³, 1500 kg/m³, 2 % OC
Sediment: 21 000 m³, 1300 kg/m³, 5 % OC
Susp. sediment: 35 m³, 1500 kg/m³, 16.7 % OC
Fish: 7 m³, 1000 kg/m³, 5 % fat
Aerosol: 0.12 m³, 1500 kg/m³

Temperature: 20 °C

Results and discussion

Percent distribution in media

Air (%):
0
Water (%):
75.406
Soil (%):
12.182
Sediment (%):
12.317
Susp. sediment (%):
0.079
Biota (%):
0.008
Aerosol (%):
0.009

Applicant's summary and conclusion

Conclusions:
According to a Mackay Level I model calculation, the main target compartment for tridecanedioic acid will be the hydrosphere (75.4 %) followed by sediment (12.3 %) and soil (12.2 %). It is expected that dissociation in the water phase will further increase its share significantly at the expense of the other compartments.
Executive summary:

According to a Mackay Level I model calculation, the main target compartment for tridecanedioic acid will be the hydrosphere (75.4 %) followed by sediment (12.3 %) and soil (12.2 %). It is expected that dissociation in the water phase will further increase its share significantly at the expense of the other compartments.