A Level I simulation is of the equi

A Level I simulation is of 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 (e.g. no wet deposition, or sedimentation). The medium receiving the emission is unimportant because the chemical is assumed to become instantaneously distributed to an equilibrium condition.

Physical-chemical properties are used to quantify a chemical's behaviour in an evaluative environment. Three types of chemicals are treated in this model: chemicals that partition into all media (Type 1), involatile chemicals (Type 2), and chemicals with zero, or near-zero, solubility (Type 3). The Level I Model assumes a simple, evaluative, closed environment with user-defined volumes and densities for the following homogeneous environmental media (or compartments): air, water, soil, sediment, suspended sediment, fish and aerosols.

This model is useful for establishing the general features of a new or existing chemical's behaviour. A Level I calculation gives the general impression of the likely media into which a chemical will tend to partition and an indication of relative concentrations in each medium. The results of changes in chemical and environmental properties may be explored.

Features of the Level I Program:
Provides a database of chemicals and chemical properties.
Permits temporary additions/changes of chemicals and their properties to a simulation.
Permits permanent additions, changes and deletions of chemicals and their properties to the chemical database.
Supplies default values for all input fields which may be easily changed. These values are regarded as typical, as discussed in the text referred to earlier.
Provides context-sensitive Help.
Displays and prints the Level I model calculations, as performed by the program.
Allows the printing of simulation tables and the summary diagram.
Allows the program results to be saved as a comma separated value (csv) file.

This program was based on the following publication:

Mackay, D. 2001. "Multimedia Environmental Models: The Fugacity Approach - Second Edition", Lewis Publishers, Boca Raton, pp. 1-261.

Other related publications:

Mackay, D., Paterson, S., Kicsi, G., Di Guardo, A., Cowan, C.E. 1996. Assessing the Fate of New and Existing Chemicals: A Five Stage Process. Environ. Toxicol. Chem. 15: 1618-1626.

Mackay, D., Paterson, S., Di Guardo, A., Cowan, E.C. 1996. Evaluating the Environmental Fate of a Variety of Types of Chemicals Using the EQC Model. Environ. Toxicol. Chem. 15: 1627-1637.

Mackay, D., Paterson, S., Kicsi, G., Cowan, E.C., Di Guardo, A., Kane, D.M. 1996. Assessment of Chemical Fate in the Environment Using Evaluative, Regional and Local-Scale Models: Illustrative Application to Chlorobenzene and Linear Alkylbenzene Sulfonates. Environ. Toxicol. Chem. 15: 1638-1648.

The required input data are:
Chemical Properties:
chemical name
molecular mass
data temperature
Type 1 chemicals

- water solubility
- vapour pressure
- log Kow
- melting point
Type 2 and 3 chemicals

- partition coefficients
Environmental Properties:
volumes for all 7 media
densities for all 7 media
organic carbon content (soil, sediment & suspended sediment only)
fish lipid content (Type I chemicals only)
Emissions:
chemical amount
Model Output:
partition coefficients (Type 1)
Z values
fugacity of the system
concentrations and amounts for each compartment
a summary diagram
This program is only available in compiled form. A "readme.txt" file with more detailed technical information is included in the zipped file.

ผลลัพธ์ (อังกฤษ) 2:

A Level I simulation is of 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 (eg no wet deposition. , or sedimentation). Emission is the Medium receiving the unimportant because the Chemical is assumed to Become Instantaneously Distributed to an equilibrium condition. Physical-Chemical properties are used to quantify a Chemical's behavior in an evaluative Environment. Three types of chemicals are treated in this model: chemicals that partition into all media (Type 1), involatile chemicals (Type 2), and chemicals with zero, or near-zero, solubility (Type 3). The Level I Model Assumes a Simple, evaluative, Closed Environment with user-defined Volumes and densities for the following homogeneous Environmental Media (or compartments): Air, Water, soil, Sediment, suspended Sediment, Fish and aerosols. This Model is useful for. establishing the general features of a new or existing chemical's behaviour. A Level I calculation gives the general impression of the likely media into which a chemical will tend to partition and an indication of relative concentrations in each medium. The results of changes in Chemical and Environmental properties May be explored. Features of the Level I Program: Provides a Database of chemicals and Chemical properties. Permits temporary Additions / changes of chemicals and their properties to a Simulation. Permits Permanent Additions, changes and Deletions. of chemicals and their properties to the Chemical Database. Supplies default values ​​for all input Fields which May be easily changed. These values ​​are regarded as Typical, as discussed in the text referred to earlier. Provides context-sensitive Help. Displays and Prints the Level I Model calculations, as performed by the Program. Allows the Printing of Simulation tables and the Summary diagram. Allows the. Program results as a Comma Separated Value to be Saved (CSV) file. This Program was based on the following Publication: Mackay, D. 2001. "Multimedia Environmental Models: The Fugacity Approach - Second Edition", Lewis Publishers, Boca Raton, PP. . 1-261. Other related Publications: Mackay, D., Paterson, S., Kicsi, G., Di Guardo, A., Cowan, CE 1996. Assessing the Fate of New and Existing Chemicals: A Five Stage Process. Environ. Toxicol. Chem. 15: from 1,618 to 1626. Mackay, D., Paterson, S., Di Guardo, A., Cowan, EC 1996. Evaluating the Environmental Fate of a Variety of Types of Chemicals Using the EQC Model. Environ. Toxicol. Chem. 15: from 1,627 to 1,637. Mackay, D., Paterson, S., Kicsi, G., Cowan, EC, Di Guardo, A., Kane, DM 1996. Assessment of Chemical Fate in the Environment Using Evaluative, Regional and Local-. Scale Models: Illustrative Application to Chlorobenzene and Linear Alkylbenzene Sulfonates. Environ. Toxicol. Chem. 15: 1638 to 1,648. The Data input required are: Chemical Properties: Chemical name molecular mass Temperature Data Type 1 chemicals - Water solubility - vapor pressure - log Kow - melting Point Type 2 and 3 chemicals - Partition coefficients Environmental Properties: Volumes for all. 7 Media densities for all 7 Media Organic carbon content (soil, Sediment & suspended Sediment only) Fish lipid content (Type I chemicals only) Emissions: Chemical amount Model Output: Partition coefficients (Type 1) Z values ​​Fugacity of the System concentrations and amounts. each compartment for a Summary diagram This Program is only available in compiled form. A "readme.txt" file with more detailed technical information is included in the zipped file.

ผลลัพธ์ (อังกฤษ) 3:

A Level I simulation is of the equilibrium distribution of a fixed quantity of conserved (ie. Non-reacting), chemical in. A closed environment at equilibrium with no, degrading reactions no processes, advective, no and intermedia transport processes. (e.g. No, wet deposition or sedimentation).The medium receiving the emission is unimportant because the chemical is assumed to become instantaneously distributed. To an equilibrium condition.

Physical-chemical properties are used to quantify a chemical 's behaviour in an evaluative. Environment. Three types of chemicals are treated in this model: chemicals that partition into all media (Type 1), involatile. Chemicals (Type 2),And chemicals with zero or near-zero, solubility (Type, 3). The Level I Model assumes a simple evaluative closed environment,,, With user-defined volumes and densities for the following homogeneous environmental media (or compartments): air water,,, ,,, soil sediment suspended sediment fish and aerosols.

.This model is useful for establishing the general features of a new or existing chemical 's behaviour. A Level I calculation. Gives the general impression of the likely media into which a chemical will tend to partition and an indication of relative. Concentrations in each medium. The results of changes in chemical and environmental properties may be explored.

Features. Of the Level I Program:
.Provides a database of chemicals and chemical properties.
Permits temporary additions / changes of chemicals and their properties. To a simulation.
Permits permanent additions changes and, deletions of chemicals and their properties to the chemical, database.
Supplies default values for all input fields which may be easily changed. These values are regarded, as typicalAs discussed in the text referred to earlier.
Provides context-sensitive Help.
Displays and prints the Level I model. Calculations as performed, by the program.
Allows the printing of simulation tables and the summary diagram.
Allows the. Program results to be saved as a comma separated value (CSV) file.

This program was based on the following publication:

Mackay,, D. 2001."Multimedia Environmental Models: The Fugacity Approach - Second Edition", Lewis Publishers, Boca Raton, PP. 1-261.

Other. Related publications:

Mackay D. Paterson S,,,,,, Kicsi G. Di Guardo A. Cowan C.E,,,. 1996. Assessing the Fate of New and. Existing Chemicals: A Five Stage Process. Environ. Toxicol. Chem. 15: 1618-1626.

Mackay D. Paterson S,,,,,, A, Di Guardo. Cowan, the E.C. 1996.