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Modul'ERS : a modular computational tool for human health risk assessment

By Roseline Bonnard and Julien Caudeville

Abstract

In France, risk assessment studies have to be conducted before the implementation or the enlargement of some new facilities and before the reuse of some contaminated sites. These studies have to be performed in accordance to four principles : precautionary, specificity, proportionality, transparence. Until now, no devoted software has been developed in France to assess future exposure and risks for such studies. Because of that, many problems have been reported in exposure assessment studies leading to inconsistency between risk assessment studies and a lack of confidence in results provided. INERIS develops and diffuses modeling tools in the framework of one's missions for the Ministry in charge of the Environment. A modeling and simulation platform (MODUL'ERS) based on the equations presented in this handbook has also been developed. Our main objectives during its conception were to provide a tool (1) suited to different site conditions and tier studies, (2) transparent for any stakeholders and helpful to perform uncertainties analysis. MODUL'ERS consists in a library of preset module enabling the users to build models in accordance with the site conceptual model (that is to say the pathways from the source to the receptor), by downloading modules and connecting them, to create an exposure matrix. Many options are also available to create a customized application. To improve transparency of studies all the equations, parameters can be viewed by the users, as well all the intermediate calculations performed. Especially, hyperlinks enable to browse among variables and their equations. Some reports will be also published to make more transparent the assignment of values to input parameters, by describing the values collected and the choices made (best-estimate, ranges, probabilistic distributions).Coupling with the GIS-based platform PLAINE, MODUL'ERS is able to map environmental inequalities

Topics: A-EXPOSURE MODELS, A-RISK ASSESSMENT, C-MULTIMEDIA, C-SOIL, A-ENVIRONMENTAL POLICY, [SDV.EE.SANT]Life Sciences [q-bio]/Ecology, environment/Health
Publisher: HAL CCSD
Year: 2014
OAI identifier: oai:HAL:ineris-01852854v1
Provided by: HAL-INERIS
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