Long-term freshwater quality monitoring data for sites in the Lower Mackenzie River Basin for the past 15 years or longer for nutrients, metals, major ions, and other physical-chemical variables are included in this dataset. Monitoring is conducted by Environment and Climate Change Canada (ECCC) and in collaboration with Parks Canada to assess water quality status and long-term trends, detect emerging issues, establish water quality guidelines and track the effectiveness of remedial measures and regulatory decisions. Most recent data can be downloaded from the following link: http://data.ec.gc.ca/data/substances/monitor/national-long-term-water-quality-monitoring-data/lower-mackenzie-river-basin-long-term-water-quality-monitoring-data-canada-s-north/

Les données de surveillance à long terme de la qualité de l'eau douce pour les sites du bassin inférieur du fleuve Mackenzie au cours des 15 dernières années ou plus pour les nutriments, les métaux, les ions majeurs et d'autres variables physico-chimiques sont incluses dans cet ensemble de données. La surveillance est effectuée par Environnement et Changement climatique Canada (ECCC) et en collaboration avec Parcs Canada pour évaluer l'état de la qualité de l'eau et les tendances à long terme, détecter les problèmes émergents, établir des recommandations pour la qualité de l'eau et suivre l'efficacité des mesures correctives et des décisions réglementaires. Les données les plus récentes peuvent être téléchargées à partir du lien suivant : http://data.ec.gc.ca/data/substances/monitor/national-long-term-water-quality-monitoring-data/lower-mackenzie-river-basin-long-term-water-quality-monitoring-data-canada-s-north/

This dataset was produced as part of an investigation into the sources of mercury (Hg) in streams of the lower Mackenzie River Basin (MRB), carried out between 2018 and 2020 by scientists from Uppsala University, the Swedish University of Agricultural Sciences, Stockholm University, and Trent University in Peterborough, Ontario. Sampling in 2018 was carried out between 8-30 June at 19 sites between latitudes 59° and 68° N. Between 14 June 2019 and 3 March 2020, additional samples were collected by community partners at 2-3 month intervals from 4 rivers. Only basic water properties and dissolved Hg levels are reported here. Additional parameters, including stable isotopes of Hg, C, O and H, as well as radiocarbon, are reported and archived elsewhere.

The Department of Environment and Climate Change (ECC) is responsible for monitoring transboundary waters to ensure that upstream provinces and territories are not causing downstream effects in the Northwest Territories (NWT). The Transboundary suspended sediment and water quality sampling sites were established to characterize the water quality in the major transboundary rivers flowing into the NWT. The transboundary rivers monitored under this program are the Slave, Hay, Liard and Peel Rivers.The comprehensive program has developed a solid baseline for the aquatic ecosystem of these rivers against which future changes can be measured.

This dataset contains continuous water temperature measurements from salmon-bearing watersheds in Musgamagw Dzawada'enuxw territory (Broughton Archipelago region of British Columbia). The data were collected as part of a collaborative monitoring program between Ecofish Research Ltd. (ERL), Salmon Coast Society (SCS), and the Musgamagw Dzawada'enuxw Fisheries Group Society (MDFGS). Monitoring stations were established in eleven rivers (Mackenzie River, Embley Creek, Kingcome River, Lahlah River, Ahta (Hada) River, Satsalla River, Clearwater River, Atlatzi River, Wahpeeto Creek, Wakeman River and Atwaykellesse River) in the territory to assess the cumulative effects of forest harvesting and climate change on salmon populations in these watersheds. Water temperature was measured at 15-minute intervals using ONSET Hobo TidbiT v2 sensors starting summer 2023, as part of a broader hydrometric and water quality monitoring network consisting of eleven stations across the region.

The Tlicho Community Government of Behchoko is required to conduct sampling under the Surveillance Network Program under its Water Licence W2014L3-0002.