1. General Model Information
Name: SoilFug - A Fugacity Model of Pesticide Runoff to Surface Water
Main medium: terrestrial, aquatic
Main subject: biogeochemistry, hydrology
Organization level: ecosystem
Type of model: compartment model
Keywords: pesticide, runoff, soil, surface water, fugacity approach
Environmental Modelling Centre
1600 West Bank Drive, Peterborough, Ontario, Canada, K9J 7B8
The SoilFug model assesses the potential for reaction,
degradation and leaching of a pesticide applied to a surface soil. The model
includes a database of chemicals and soil types, however, the user can easily
define new chemicals and soils. Output can be viewed as either tables or graphs.
This program was based on the following publications:
Di Guardo, A., Calamari et al. 1994,
Di Guardo, A.,Williams et al. 1994 and Barra et al. 1995.
For a simpler, DOS version, use the
II. Technical Information
Operating System(s): Windows 3.11 or higher
This program is only available in compiled form. To run this program you will need a computer running either MS Windows 3.1 or Windows 95. The zipped file is 986KB and is self-expanding to about 2.26 MB. A "setup.txt" file with more detailed technical information is included in the zipped file.
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Programming Language(s): BASIC, VISUAL BASIC
For the BASIC version see Available Models at the Environmetal Modelling Centre
III. Mathematical Information
The required input data are:
organic carbon partition coefficient, Koc, OR
the log octanol-water partition coefficient, log Kow
mineral-water partition coefficient
times, durations, and deposition depths of up to 20 rain events
individual time, dosage of, and area covered by up to ten pesticide applications
Soil Properties:basin area
volume fractions of air and water
mass fraction of organic carbon
Model output includes:
concentrations of pesticide in the soil and in the basin water
pesticide losses by each of runoff, degradation, and volatilization over the 20 rain events
D. Mackay 1991 "Multimedia Environmental Models; The Fugacity Approach" Lewis Publishers, CRC Press. pp 193-198. Di Guardo, A., Calamari, D., Zanin, G., Consalter, A., and Mackay, D. "A Fugacity Model of Pesticide Runoff to Surface Water: Development and Validation", Chemosphere, 23, 511-531, 1994.
Di Guardo, A.,Williams, R.J.,Mattiessen, P., Brooke, D.N., and Calamari, D. " Simulation of Pesticide Runoff at Rosemaund Farm (UK) Using the SoilFug Model", Environ. Sci. & Pollut. Res. 1, 151-160, 1994.
Barra, R., Vighi M., and Di Guardo, A. "Prediction of Surface Water Input of Chloridazon and Chlorpyrifos from an Agricultural Watershed in Chile", Chemosphere, 30, 485-500, 1995.
V. Further information in the World-Wide-Web
Available Models at the Environmetal Modelling Centre
Soil model with fugacity approach (Basic)
VI. Additional remarks
Last review of this document by:
Status of the document:
last modified by
Tobias Gabele Wed Aug 21 21:44:49 CEST 2002