1. General Model Information

Name: Exposure Estimation for potentially Ecotoxic Environmental CHEMicals

Acronym: E4CHEM


Main medium: terrestrial+air+aquatic
Main subject: biogeochemistry
Organization level: ecosystem
Type of model: compartment model, ordinary differential equations
Main application:
Keywords: fate, exposure degradation, chemical, volatilisation, leaching, deposition, transport diffusion

Contact:

Dr. R Brüggemann

Author(s):

Abstract:

The predominant aims of E4CHEM:
In combination with statistics and algebraic tools (lattice theory) but not included in E4CHEM, yet: Furthermore: Limitations:
Principle and structure of the E4CHEM-system
E4CHEM combines by a set of environmental medium related models. The intermedial transport and intramedium transfer processes which connect the models of E4CHEM are shown in the figure below.

Selection criteria for ranking chemicals Models of E4CHEM Input data
Release potential
Release rate from production, manufacturing, use, release path RLTEC Amount of production, use pattern
Distribution potential
Distribution tendency between different media EXTND, EXFUG Physico-chemical substance data, Compartment parameters
Exposure potential
Accumulation, Mobility, Persistence EXAIR, EXWAT, EXSOL, EXINT, EXATM, EXPLA Physico-chemical substance data, degradation constants, bioconcentration constants, environmental parameters

(Source: Brüggemann,R., U. Drescher-Kaden, B Münzer (1996) E4CHEM - A Simulation Program for the Fate of Chemicals in the Environment. GSF-Bericht 2/96 (ISSN 0721-1694).)


II. Technical Information

II.1 Executables:

Operating System(s): DOS (please contact the author)

II.2 Source-code:

Programming Language(s):

II.3 Manuals:



II.4 Data:



III. Mathematical Information


III.1 Mathematics


III.2 Quantities


III.2.1 Input

III.2.2 Output


IV. References

Brüggemann,R., U. Drescher-Kaden, B Münzer (1996) E4CHEM - A Simulation Program for the Fate of Chemicals in the Environment.
GSF-Bericht 2/96 (ISSN 0721-1694).

V. Further information in the World-Wide-Web


VI. Additional remarks


Last review of this document by: 29.05.96
Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:42 CEST 2002

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