Comparative risk assessment of potentially contaminated sites: proposal, implementation and application of a regional methodology

A possible category within the soil and groundwater quality criteria for contaminated sites consists of the comparative (or relative) risk assessment. In the regulative and applicative Italian context of contaminated soil management, and with specific reference to the situation of potentially contaminated sites in Marche Region (Central Italy, Adriatic Sea side), this paper deals with the proposal of a possible simplified regional comparative risk assessment methodology, the definable \“CORIANREG-M” (\“Comparative Risk Analysis”, on \“Marche Regional” basis) or equivalently in Italian \“ACORIREG-M”. Following the description of the calculation structure and the computer worksheet implementation of the \“CORIANREG-M” methodology, the present paper summarises also the application of this methodology to no. 12 potentially contaminated sites, which are located in Marche Region and represent diversified situations of potential contamination.