Managing Uncertainty in Risk-Based Corrective Action Design: Global Sensitivity Analysis of Contaminant Fate and Exposure Models Used in the Dose Assessment |
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| Authors: | S Avagliano L Parrella |
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| Institution: | (1) Italian National Agency for New Technology, Energy and Environment Technical Scientific Division for the Development of Environmental Technologies and Protection Strategies, ENEA, Via Vecchio Macello, Portici, NA, 80055, Italy;(2) Division of Environmental Technologies and Protection Strategies, ENEA Portici Research Center, Via Vecchio Macello, 80055 Portici, Napoli, Italy |
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| Abstract: | A variance-based global sensitivity analysis (GSA) was applied to the dose assessment model used in the risk-based corrective
action methodology of environmental risk analysis to identify key sources of variability and uncertainty and quantify the
relative contribution of these sources to the variance of estimated dose. GSA was performed applying extended Fourier amplitude
sensitivity test technique. The soil-to-air contaminant transport pathway within an inhalation exposure scenario was addressed.
Three persistent semi-volatile carcinogenic chemicals, including polychlorinated biphenyls, benzo(a)pyrene, and 2,3,7,8-tetrachlorodibenzo-p-dioxin, were chosen as contaminants of concern. |
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| Keywords: | Risk-based corrective action Inhalation dose model Global sensitivity analysis |
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