00000cam 2200000zi 4500 9.957673 CaOODSP 20251215123353 m o d f cr cn||||||||| 251125t20252025mbcbd ob f000 0 eng d 9780660799070 CaOODSP eng rda CaOODSP n-cn-qu En78-4/2025E-PDF Lizotte, Martine, author. Deoxygenation and acidification in the St. Lawrence Estuary / prepared by Martine Lizotte and Marjolaine Blais. At head of title: Monitoring the state of the St. Lawrence River Winnipeg, Manitoba : Canada Water Agency, [2025] ©2025 1 online resource (5 unnumbered pages) : maps, graphs text txt rdacontent computer c rdamedia online resource cr rdacarrier Caption title. "Unclassified." Issued also in French under title: Désoxygénation et acidification dans l'estuaire du Saint-Laurent. Includes bibliographical references. "Oxygen levels in the deep waters of the St. Lawrence estuary have been monitored since the early 1970s. In 2022, they reached their lowest values ever recorded and remained close to these record lows in 2023 and 2024. Annual pH measurements carried out since 2014 reveal a trend towards acidification of the estuary's deep waters, characterized by a drop in pH, which reached a record low in 2023"--Highlights, page [1]. Water acidification Québec (Province) Saint Lawrence River Estuary. Hypoxia (Water) Québec (Province) Saint Lawrence River Estuary. Saint Lawrence River Estuary (Québec) Environmental conditions Observations. Canada Water Agency, issuing body. Désoxygénation et acidification dans l'estuaire du Saint-Laurent / (CaOODSP)9.957674 PDF 513 KB https://publications.gc.ca/collections/collection_2025/aec-cwa/En78-4-2025-eng.pdf HTML N/A https://www.canada.ca/en/canada-water-agency/freshwater-ecosystem-initiatives/st-lawrence-river/publications/deoxygenation-acidification-st-lawrence-estuary.html