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A Method for Risk Assessment for Three Contaminated Sites in Northern Italy

✍ Scribed by Andrea Critto; Nadia Nadal; Claudio Carlon; Antonio Marcomini

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
96 KB
Volume
95
Category
Article
ISSN
0003-4592

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✦ Synopsis

Abstract

A stepwise human health risk assessment procedure carried out using American Society for Testing and Materials methodology was applied to three contaminated sites located in northern Italy: an uncontrolled landfill, an abandoned industrial site and an industrial waste contaminated land. Two different tiers of analysis were performed by means of the analytical model RBCA Tool Kit and the numerical model API‐DSS, respectively. The latter was applied according to both a deterministic and a probabilistic risk analysis. The comparison of the two approaches highlighted the great benefit provided by probabilistic analysis for the risk assessment based on site specific parameters and more complex models, in particular for groundwater exposure route. Finally, the risk‐based site specific target levels were compared to the generic regulatory threshold limits fixed by the Italian regulation. The comparison showed the regulatory limits generally too restrictive for non‐carcinogenic substances but less protective for carcinogenic chemicals, outlining the need of a site‐specific risk assessment especially for carcinogenic substances.

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