ENVIRONMENTAL RISK ASSESSMENT AND PRIORITIZATION OF UNCONTROLLED LANDFILLS BY USING GIS TECHNOLOGY

In the last few years, the problems related to the mismanagement of exhausted landfills and/or uncontrolled urban and industrial waste refusals have assumed more and more importance, both for the environmental implications and for the connected technical-administrative responsibilities. This study was aimed at defining a criterion to assess the effective risk related to the presence of illegal landfills. The present article was carried out through the following steps: assessing the potential hazard of uncontrolled landfills; linking the obtained results, also by using GIS applications, with territorial vulnerability indexes (mainly referred to water and soil environmental matrixes and to the presence of population); elaborating an Integrated Risk Index (IRI) able to represent the uncontrolled landfill environmental risk level in relation to the area where it is located.

The aim of this paper is the definition of a criterion usefull to assess the risk related to the presence of illegal landfills on a specific hydrogeological formation. The defined risk levels can represent an instrument of discrimination and reclassification of illegal landfills. Through a cross analysis of hydrogeological aspects and physical characteristics of the site, the methodology can supply a criterion to assess intervention and reclamation priorities. This is a very important decisional instrument in order to optimize technical and economic resources.



Copyright: © IWWG International Waste Working Group
Source: Specialized Session F (Oktober 2007)
Pages: 9
Price inc. VAT: € 9,00
Autor: Prof. Salvatore Masi
Donatella Caniani
Ettore Trulli
Francesco Sdao
G. Perilli

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