Registration Dossier

Administrative data

Endpoint:
distribution modelling
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Accepted calculation method

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2004
Report Date:
2004

Materials and methods

Model:
calculation according to Mackay, Level I
Calculation programme:
Fugacity-Based Environmental Equilibrium Partitioning Model; Environmetal Modelling Centre; Trent University Peterborough, Ontario, Canada. Version 2.11 (1999).
Release year:
1 999
Media:
other: air - biota - sediment(s) - soil - water - aerosol

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
relate to the pure substance

Results and discussion

Percent distribution in media

Air (%):
0.001
Water (%):
99.91
Soil (%):
0.04
Sediment (%):
0.04
Susp. sediment (%):
0.001
Biota (%):
0.001
Aerosol (%):
0.001

Any other information on results incl. tables

 In the model phthalic acid is treated as a type 1 chemical, i.e. the chemical
 partitions into all environmental media.
 Estimation is carried at an environmental temperature of 25 °C.
RS-Freetext:
Based on the model calculations (Mackay level I, v 2.11) the target compartment of the environmental distribution of phthalic acid is the hydrosphere.
Water: 99.91 %
Air: <0.001 %
Sediment: 0.043 %
Soil: 0.042 %
Susp. Sed.: <0.001 %
Aerosol: <0.001 %
Aquatic Biota: <0.001 %

Applicant's summary and conclusion

Executive summary:

The distribution of phthalic acid in a "unit world" was calculated according to the Mackay fugacity model level I (Bayer Industry Services, 2004) based on the physico-chemical properties. The main target compartment for phthalic acid is water with 99.91 %, followed by soil and sediment with 0.042 and 0.043%, respectively.