Keywords: absolute risk analysis, case-study, computer worksheets, contaminated sites, human exposure pathways, scenarios, scientific international reference procedure, sanitary risk assessment, health risks, Italy, health protection, environmental pollution, soil screening
A possible sanitary risk analysis approach for contaminated sites: fundamentals, computer worksheet implementation, preliminary application
Within the increasing (legislative and applicative) attention to absolute risk analysis for contaminated sites at Italian level, as a University research study and exercise, the definable 'ARA-CoSSSLs' absolute risk analysis approach for human health protection ('Absolute Risk Analysis for Contaminated Sites', on 'Soil Screening Levels' basis) has been derived (as an initial, simplified version) and directly implemented on a series of interactive computer worksheets. The basic conditions of the 'ARA-CoSSSLs' approach derivation are: the predominant, relevant reference to a fundamental international scientific protocol, also considering its temporal evolution (the US EPA 'SSLs' procedure); a modular, open and easily extensible computer calculation structure (which is expressly arranged with correlated 'Modules', eventually theoretical 'Sub-modules' and finally different, individual 'Worksheets'). This paper deals with the fundamentals, the characteristic aspects and the specific calculation structure and implementation of the 'ARA-CoSSSLs' approach. Additionally, a first, preliminary Italian case study application of the 'ARA-CoSSSLs' approach is synthetically presented.