Saint Lawrence River Basin Long-term Water Quality Monitoring Data

Le programme de Monitoring et surveillance de la qualité de l’eau douce dans le bassin versant du Saint-Laurent est mené par Environnement et Changement climatique Canada (ECCC) ainsi qu'à travers l'Entente entre le Canada et le Québec pour le monitoring de la qualité de l'eau et le Plan d'action Saint-Laurent afin d'évaluer l'état de la qualité de l'eau et les tendances à long terme, de détecter les problèmes émergents, d'établir les recommandations pour la qualité de l'eau et de suivre l'efficacité des mesures correctrices et des décisions réglementaires.

The Freshwater Quality Monitoring and Surveillance Program in the St. Lawrence River watershed is conducted by Environment and Climate Change Canada (ECCC) and through the Canada-Québec Water Quality Monitoring Agreement and the St. Lawrence Action Plan to assess the state of water quality and long-term trends, detect emerging problems, establish water quality guidelines, and track the effectiveness of remedial actions and regulatory decisions.

Citation

Environment and Climate Change Canada (ECCC) / Environnement et Changement climatique Canada (ECCC). 2023-09-25. "Saint Lawrence River Basin Long-term Water Quality Monitoring Data" (dataset). 3.0.0. DataStream. https://doi.org/10.25976/h39n-kn28.

Data Collection Information

Les stations de suivi de la qualité de l’eau sont établies dans des usines de filtration des eaux, dans une infrastructure spécialisée pour l’échantillonnage (système de pompage d’eau provenant de la rivière acheminant l’eau à l’infrastructure) et directement dans les tributaires du fleuve Saint-Laurent.

L’eau brute est échantillonnée dans des contenants préalablement conditionnés et sélectionnés selon les paramètres à analyser. La phase particulaire de l’eau est échantillonnée sur un filtre GF/F à l’aide d’une pompe en téflon et d’un porte-filtre en acier inoxydable, le tout préalablement nettoyés.

Les échantillons (phase aqueuse et particulaire) sont analysés pour une large gamme de composés incluant les paramètres physico-chimiques, les nutriments, les métaux et les composés organiques dans les laboratoires d’ECCC utilisant des méthodes accréditées par la Canadian Association for Laboratory Accreditation (CALA) ainsi que dans des laboratoires externes.

Le tableau des paramètres et des méthodes le plus récent peut être téléchargé ici : Données nationales de monitoring de la qualité de l'eau à long terme - Portail du gouvernement ouvert (canada.ca)

The water quality monitoring stations are established in water filtration plants, in a specialized infrastructure for sampling (water pumping system from the river bringing water to the infrastructure) and directly in the tributaries of the St. Lawrence River.

The raw water is sampled in containers previously conditioned and selected according to the parameters to be analyzed. The particulate phase of the water is sampled on a GF/F filter using a Teflon pump and a stainless steel filter holder, all cleaned beforehand.

Samples (aqueous and particulate phase) are analyzed for a wide range of substances including physico-chemical parameters, nutrients, metals and organic compounds in ECCC laboratories using methods accredited by the Canadian Association for Laboratory Accreditation (CALA) as well as in external laboratories.

The most recent table of parameters and methods can be downloaded here: National Long Term Water Quality Monitoring Data - Open Government Portal (canada.ca)

Translated with www.DeepL.com/Translator (free version)

Open Government Licence (OGL)

See disclaimer for details. https://open.canada.ca/en/open-government-licence-canada

Data Disclaimer

This dataset is made available under the Open Government License - Canada: https://open.canada.ca/en/open-government-licence-canada. Environment and Climate Change Canada employs every reasonable effort whenever feasible, to ensure the currency, accuracy and precision of the information provided. However, there are some limitations due to the sources of the data and the technology used in its processing and management. Furthermore, the material or any data derived using the data is subject to interpretation. Users are responsible for verifying that the supplied material is appropriate for the use or application for which they wish to employ it. The water quality and aquatic ecosystem data released may include provisional and/or validated data. Provisional data should be considered with greater caution as it has yet to be validated with quality control and quality assurance activities, which may result in significant change made to the data. Environment and Climate Change Canada makes no representation or warranty of any kind, either expressed or implied, as to the information presented, nor as to its fitness for any particular use. Environment and Climate Change Canada does not assume nor accept any liability arising from any use of the information and applications used to display or use the information. The data are not intended for any legal, or navigation purposes. The data may change from time to time as updated information is received. If any information seems to be incorrect, raises concerns, or for more information on this data, please communicate with the Environment and Climate Change Canada contact provided within the application. The material might contain links to third party sites. Environment and Climate Change Canada provides these links only as a service and convenience. Environment and Climate Change Canada takes no responsibility for the content at third party sites and in no way implies an endorsement or recommendation of the products, services or information found there. A third party site may have a privacy policy different from that of Environment and Climate Change Canada. Environment and Climate Change Canada does not assume nor accept any liability arising from any use of third party sourced content.

API Access

curl -G https://api.datastream.org/v1/odata/v4/Records --data-urlencode "\\$filter=DOI eq '10.25976/h39n-kn28'" -H "x-api-key: PRIVATE-API-KEY"

Changelog