Ecotoxicity model for Cd, Cr and As online

Updating and finalizing the ecotoxicity modeling for the LIFE NARMENA project marks an important milestone in advancing sustainable remediation measures in Flanders. Notably, the series of experiments assessing the chronic toxicity of chromium-spiked sediment to the amphipod Hyalella azteca have now been successfully completed. Conducted by Ecofide, this work responds to the LIFE NARMENA objective of refining ecological risk assessments for contaminated floodplains and watercourses. Arche Consulting contributed to the development of the ecotoxicity models, supporting the scientific underpinning of the risk assessment framework. The results and improved modeling framework help predict the impact of cadmium, chromium, and arsenic on key indicator species, including Daphnia magna (water flea) and Lemna minor (duckweed) alongside Hyalella azteca, while also exploring the effectiveness of nature-based remediation techniques such as bacteria-assisted phytoremediation and constructed wetlands. These innovative approaches, backed by robust scientific evidence, will ultimately strengthen soil and water policies, striving for better ecological quality in Flanders’ waterways.

The ecotoxicity model is here available.