About SESOIL
About SESOIL
SEasonal
compartment model for long-term pollutant fate and transport in the unsaturated
SOIL
zone
SESOIL is commonly used by the EPA as a screening
tool in performing exposure assessments and for analyzing and prioritizing
chemical exposures at contaminated sites. SESOIL has also been applied in risk
assessments for estimating the potential impacts of surface spills on underlying
aquifers.
Model Details
- Multi-layer profile (maximum of four layers)
- Heterogeneous soil properties (for transport
parameters only)
- Depth variable and time variable initial
concentrations
- Time-variant flow boundary conditions
(atmospheric boundary condition)
- Automatic generation of up to 100 years of
weather data
- Built-in database of soil parameters and
chemical properties
Simulated Processes
- Hydrologic cycle of the unsaturated soil zone
- Pollutant fate processes including
volatilization, adsorption, cation exchange, biodegradation, hydrolysis and
complexation
- Pollutant concentrations and masses in water,
soil and air phases
- Pollutant migration to groundwater
- Pollutant volatilization at the ground surface
- Pollutant transport in washload due to surface
runoff and erosion at the ground surface
Simulation Results
SESOIL creates an output file containing monthly
results for each layer and sub-layer of the model including:
- Hydrologic cycle components
- Pollutant mass distribution adsorbed on the
soil
- Pollutant concentration distribution in soil
moisture
- Pollutant concentration distribution in soil
vapor
Click here for details on using SESOIL in the UnSat
Suite
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