1. General Model Information

Name: CemoS/Level1 - steady state distribution of chemical

Acronym: CEMOS_LEVEL1


Main medium: terrestial
Main subject: (eco)toxicology, biogeochemistry
Organization level: Ecosphere
Type of model: compartment model
Main application:
Keywords: partitioning, steady state, exposure,fugacity, hazardous chemicals

Contact:

Dr. Stefan Trapp
University of Osnabrueck
Institute of Environmental Systems Research
Artilleriestr 34
49069 Osnabrueck, Germany
Phone: +49-541-9692574
Fax : +49-541-969-2599
email:

Author(s):

Guido Baumgartner
Bernhard Reiter
Sven Scheil
Stefan Schwartz
Jan-Oliver Wagner
Dr. Stefan Trapp
Prof. Michael Matthies Email:cemos@skylla.mathematik.uni-osnabrueck.de

Abstract:

contents of the model
The model is part of the model package CemoS, a program system for exposure concentration estimates of environmentally hazardous chemicals. CemoS/Level1 is implemented after the fugacity concept by {\em Mackay}, but instead of fugacities partition coefficients are used. The model calculates the steady state distribution of a chemical in the compartments 'water', 'air', 'soil', 'sediment', 'suspension', 'fish' and 'plant', assuming immediate equilibrium. All compartments are regarded as homogeneously intermixed.
principles of the model
Partition coefficients between all media and one reference medium, e.g. water, are calculated. From this and from the volumina of the compartments, chemical concentrations and chemical mass in the compartments are calculated.

Author of Abstract: UFIS - Environmental Research Information System


II. Technical Information

II.1 Executables:

Operating System(s): MS-DOS Type of computer: PC Disc space: 1MB List of files: CEMOS.EXE: main program; CEMOS.OVR; STDSUB.DAB: substance data; EGAVGA.BGI: graphic file; CEMOS.HLP: help file; CEMOS.RES: string file;

II.2 Source-code:

Programming Language(s): Borland Pascal 7.0

II.3 Manuals:

Manual: Trapp, St. ; Matthies, M.: Dynamik von Schadstoffen - Umweltmodellierung mit Cemos, Springer, Berlin (1996). ISBN 3-540-59312-8. Complete model documentation: Trapp, St. ; Matthies, M.: Dynamik von Schadstoffen - Umweltmodellierung mit Cemos, Springer, Berlin (1996). ISBN 3-540-59312-8.

II.4 Data:



III. Mathematical Information


III.1 Mathematics

This is a list of model equations sorted by their characteristics with hypertext links for more details.

III.2 Quantities

This is a list of model quantities sorted by their characteristics with hypertext links for more details.

III.2.1 Input

III.2.2 Output


IV. References

Projektgruppe Exposmod. 1995. CemoS Handbuch.(in german)

Isnard, P., Lamber, S., 1988. Estimating Bioconcentration Factors from Octanol-Water Partition Coefficients and Aqueous Solubility. Chemosphere 17(1): 21-34.

Karickhoff, S.W., 1981. Semi-Empirical Estimation of Sorption of Hydrophobic Pollutants on Natural Sediments and Soils. Chemosphere 10, Pergamon, Oxford, UK. pp. 833-846.

Mackay, D., 1980.The Fugacity approach. Multimedia Environmental Models. Lewis Pub., Michigan. pp. 83 ff.

Trapp, S.; McFarlane, C.; Matthies, M. 1994. Model for Uptake of Xenobiotics into Plants: Validation with Bromacil Experiments. Environmental Toxicology and Chemistry 13, 3: 413-422.



V. Further information in the World-Wide-Web



VI. Additional remarks

Additional information
Last review of this document by: T. Gabele: Tue Oct 7 1997
Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:40 CEST 2002

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