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  1. Exposure assessment of populations using environmental modeling, demographic analysis, and GIS.

    Article - En anglais

    Simulation of ground-water flow and fate of contaminants in the subsurface environment constitutes a major phase of most environmental assessment and site remediation studies.

    These simulation studies yield information on spatial and temporal distributions of contaminants in the subsurface media.

    An important use of this information is to conduct exposure assessment studies.

    Spatial and temporal distributions of both chemical concentrations and exposed populations render this integrated exposure analysis task rather difficult.

    Geographic Information Systems (GIS), on the other hand, provide a platform in which layered, spatially distributed databases can be manipulated with ease, thereby simplifying exposure analysis tasks significantly.

    In this paper, we describe procedures that combine the simulation models and demographic databases under a GIS platform to automate the exposure assessment phase of a typical health assessment study.

    Procedures developed herein significantly simplify the post-processing phase of the analysis, and render the overall task more « user friendly. » A site-specific application is included as a demonstration of the proposed process.

    Mots-clés Pascal : Pollution eau, Eau souterraine, Eau surface, Exposition, Modèle mathématique, Devenir polluant, Hydrocarbure chloré, Système information géographique, Ethylène(trichloro), Massachusetts, Etats Unis, Amérique du Nord, Amérique

    Mots-clés Pascal anglais : Water pollution, Ground water, Surface water, Exposure, Mathematical model, Pollutant behavior, Chlorocarbon, Geographic information system, Ethylene(trichloro), Massachusetts, United States, North America, America

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 95-0103976

    Code Inist : 001D16A04B. Création : 09/06/1995.