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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:
supporting study
Study period:
2004
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: accepted calculation method
Cross-referenceopen allclose all
Reason / purpose:
reference to same study
Reason / purpose:
reference to other study

Data source

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

Materials and methods

Model:
calculation according to Mackay, Level III
Release year:
2 004
Media:
other: dynamic distribution in air-sediment-soil-water

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material: 1,2-Dichloropropane

Study design

Test substance input data:
Input Parameters:
Molecular Mass (g/mol): 112.99
Temperature (°C): 20
Log Kow: 2.0
Vapor Pressure (Pa): 6620 (49.7 mmHg)
Henry's Law Constant: 0.00282 atm-m3/mole (Henry database)
Environmental properties:
Half-lives (hr) Based upon AOPWin and Biowin (ultimate)
Air: 581
Water : 900
Soil: 1800
Sediment: 8100

Level III Emissions: 1,000 kg/hr to air only.
According to U.S. EPA TRI Database, >99.9% of reported PDC emissions are to the atmosphere

Results and discussion

Percent distribution in media

Air (%):
98.8
Water (%):
0.98
Soil (%):
0.2
Sediment (%):
0
Other distribution results:
Advection in air accounts for 89.2% of removal rate and reaction in air accounts for 10.6% of removal rate.
Advection and reaction in water, sediment, and soil account for 0.2% of removal rate

Any other information on results incl. tables

none

Applicant's summary and conclusion

Conclusions:
Level I and III models predict that PDC will be predominately transported to the atmosphere, with little or no potential for deposition to soil and water. Advection is the predominant removal mechanism in the atmosphere.