Abstract

The present study aimed at investigating the heavy metals concentrations in the soils around “Larga de Sus” abandoned mine, evaluating the potential ecological risk of heavy metal pollution and highlighting ethical aspects related to risk assessment, ecological restoration, and soil remediation. The results of the chemical analysis showed that the soil in the study area is highly polluted with heavy metals since the average concentrations of Pb, and Ni in soil exceed their corresponding threshold established by the Romanian legislation. The potential ecological risk index method developed by Hakanson was used to assess the potential risk of heavy-metal pollution. The results indicated that Pb and Ni showed severe and considerable potential ecological risk, while Cr had lightly ecological risk. In this case, remediation should be focused only on Pb or on all heavy metals even if they have lightly ecological risk? A scientific management technique cannot logically prescribe which choices should be selected. The interaction between human activity and the environment is complicated and difficult to quantify and risk management cannot and should not be based simply on risk assessment results. What is needed to make the right choice of the most appropriate alternative that fits our personality, culture, religion, and desires? The moral and ethical implications of ecological restoration and soil remediation have to be incorporated within the decision-making process in order to make optimum sustainable decisions and to achieve real environmental protection.