Registration Dossier

Administrative data

Endpoint:
distribution modelling
Type of information:
read-across based on grouping of substances (category approach)
Adequacy of study:
supporting study
Study period:
prior to or in 2002
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Data were obtained by generally accepted modeling
Justification for type of information:
Read across is based on the category approach. Please refer to attached category document.
Cross-reference
Reason / purpose:
reference to same study

Data source

Reference
Reference Type:
other: Model results
Title:
Unnamed
Year:
2002

Materials and methods

Model:
calculation according to Mackay, Level III
Calculation programme:
EPIWIN Level III Fugacity Model
Release year:
2 002
Media:
air - biota - sediment(s) - soil - water

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
not specified
Details on test material:
EPIWIN Level III Fugacity Model used to predict distribution based on physical chemical properties. No test material used.

Study design

Test substance input data:
Inputs to the EPIWIN model for Level III Fugacity, Henry and PcKoc programs were molecular structure, measured data for melting point (-6.2°C), boiling point (327°C), vapor pressure (4.65E-005 mm Hg) and water solubility (1E+006 mg/l). Emissions inputs of 1000 kg/hr were assumed for air, water, and soil, 0 kg/hr for sediment.
Environmental properties:
No additional information available.

Results and discussion

Percent distribution in media

Air (%):
0
Water (%):
45.3
Soil (%):
54.6
Sediment (%):
0.075
Other distribution results:
The following half-lives were calculated based on Biowin (ultimate) and Aopwin: T ½ air = 5.1 hr, water = 360 hr, soil = 360 hr, and sediment = 1.44E+003 hr. The Biowin ultimate value was 3.064 weeks. The Aopwin estimated half life was = 2.548 Hrs. EPIWIN Henry Program (v3.10) was used to calculate a Henry’s Law Constant of 4.91E-013 atm-m3/mole. The EPIWIN Pckoc program (v1.66) estimated a soil sediment partition constant Koc = 10.

Any other information on results incl. tables

No additional information available.

Applicant's summary and conclusion

Conclusions:
Based on Fugacity Model Level III calculations, 55% is expected to be found in soil and 45% in water.
Executive summary:

The distribution of tetraethylene glycol in the environment was examined using Fugacity Model Level III. Based on Fugacity Model Level III calculations, 55% is expected to be found in soil and 45% in water.