For a complete list of CEMC models go to the main models page.
AirWater Model Calculates the air-water exchange characteristics of a chemical based on its physical chemical properties and total air and water concentrations.
ChemCAN A Level III model of 24 regions of Canada. It estimates average concentrations in air, fresh surface water, fish, sediments, soils, vegetation, and marine near-shore waters.
EQC The EQC, or EQuilibrium Criterion, model uses chemical-physical properties to quantify a chemical's behaviour in an evaluative environment. The environment is fixed to facilitate chemical-to-chemical comparison.
Fish Model A single organism bioaccumulation model treating the steady-state uptake and loss of an organic contaminant by a fish.
FoodWeb A mass balance model of contaminant flux through an aquatic foodweb.
Level I Calculates the equilibrium distribution of a fixed quantity of conserved (ie. non-reacting) chemical, in a closed environment at equilibrium, with no degrading reactions, no advective processes, and no intermedia transport processes.
Level II Describes a situation in which a chemical is continously discharged at a constant rate and achieves a steady-state and equilibrium condition at which the input and output rates are equal.
Level III Describes a the fate of a chemical continuously discharged at a constant rate and has achieved a steady state condition in which input and output rates are equal but equilibrium between media is not assumed.
Sediment Model Calculates the water-sediment exchange characteristics of a chemical based on its physical chemical properties and total water and sediment concentrations.
Soil Model Calculates chemical partitioning between the air, water, organic matter, and mineral matter phases in a single layer of soil as a function of physical chemical properties and provides a very simple assessment of the relative potential for reaction, degradation and leaching.
STP Estimates the fate of a chemical present in the influent to a conventional activated sludge plant as it becomes subject to evaporation, biodegradation, sorption to sludges and to loss in the final effluent.
TaPL3 An evaluative tool to be used in the detailed assessment of chemicals for persistence and potential for long-range transport in a mobile medium in a steady-state environment.
QWASI Describes the steady state behaviour of an organic chemical in a lake subject to chemical inputs by direct discharge, inflow in rivers, and deposition from the atmosphere.
EPI Suite (Estimation Program Interface)
A suite of physical/chemical property and environmental fate estimation models developed by the EPA’s Office of Pollution Prevention Toxics and Syracuse Research Corporation (SRC). Includes the following estimation models: KOWWINTM, AOPWINTM, HENRYWINTM, MPBPWINTM, BIOWINTM, PCKOCWINTM, WSKOWWINTM, BCFWINTM, HYDROWINTM, and STPWINTM, WVOLWINTM, and LEV3EPITM. EPI SuiteTM was previously called EPIWIN.
EUSES (European Union System for the Evaluation of Substances)
A decision-support instrument for rapid and efficient assessments of the general risks posed by substances to man and the environment. European Chemicals Bureau