00000nam 2200000za 4500 9.826512 CaOODSP 20221107144613 cr ||||||||||| 170127s2016 qucabd ob f000 0 eng d 978-0-660-06668-4 CaOODSP eng eng fre n-cn-qu En84-142/2016E-PDF Recommendations for the management of suspended solids (SS) during dredging activities [electronic resource] / Ministère du développement durable, de l’environnement et de la lutte contre les changements climatiques and Environment and Climate Change Canada. [Gatineau, QC] : Environment and Climate Change Canada, c2016. xii, 66 p. : ill. (mostly in col.), col. maps Issued also in French under title: Recommandations pour la gestion des matières en suspension (MES) lors des activités de dragage. Cover title. At head of title: Plan d'action Saint-Laurent 2011-2026. "December 2016." Includes bibliographical references (p. 53-62). 1. Problems associated with suspended solids -- 2. Ambient SS concentrations in the St. Lawrence -- 3. SS associated with dredging operations -- 4. SS management targets specific to dredging and their application -- 5. Mitigation measures -- 6. Physicochemical characterization -- 7. Toxicological characterization -- app. A. Ambient SS concentrations (mg/L) observed from 2003 to 2008 in the various sectors of the St. Lawrence -- app. B. Ambient SS concentrations (mg/L) observed from 2003 to 2008 in the fluvial section -- app. C. Ambient SS concentrations (mg/L) observed from 2003 to 2008 in the fluvial estuary -- app. D. Type I, II, and III Screens. “The St. Lawrence River is a complex ecosystem whose properties change from its headwaters to its outlet. Opened in 1959, the St. Lawrence Seaway allows ocean-going vessels to travel from the Atlantic Ocean to the Great Lakes, a distance of more than 3200 km. To ensure safe navigation conditions, roughly 450 000 m3 of sediment are dredged annually in the St. Lawrence. One of the major concerns associated with dredging is the temporary increase in suspended solid (SS) concentrations, which can pose a threat to aquatic life. The surface water quality criteria adopted by the MDDELCC help protect aquatic life from the harmful effects of suspended solids. These quality criteria are used, in particular, to limit SS concentrations in wastewater effluents discharged into the environment. SS management criteria specific to dredging activities have now been identified, taking into account ambient SS concentrations observed in the St. Lawrence and SS concentrations measured in dredging situations"--Abstract, p. vi. Includes abstract in French. Co-published by: Ministère du développement durable, de l’environnement et de la lutte contre les changements climatiques (Québec). gccst Waterways gccst Maintenance gccst Environmental protection St. Lawrence Action Plan 2011-2026 (Canada) Québec (Province). Ministère du développement durable, de l'environnement et de la lutte contre les changements climatiques. Canada. Environment and Climate Change Canada. Recommandations pour la gestion des matières en suspension (MES) lors des activités de dragage (CaOODSP)9.826515 PDF 1.83 MB https://publications.gc.ca/collections/collection_2017/eccc/En84-142-2016-eng.pdf