Geodrisk

To facilitate the assessment of ecological risks from sediments dredged in harbours, Ifremer and the inter-ministerial group Geode undertook the development of decision-making software called Geodrisk. It is based on the results of the chemical analyses recommended in the inter-ministerial order dated 14 June 2000. The Geodrisk tool enables the differentiation of dredged sediments, according to their contamination level and their potential and measured toxicity, thus providing decision-making assistance for managers. Beginning with a simplified method based on the regulatory recommendations, the user can customize his assessment, by taking a larger number of contaminants into account or increasing the number of toxicity tests. The CD-Rom contains the decision making software, the application guide, the approach proposed for risk analysis and documents in the appendices, including protocols for toxicity tests, regulations and appropriate guidelines.