Monitoring the quality of river and river water

The theme on physicochemical monitoring of rivers and rivers presents data from all stations in networks monitoring water quality in rivers in Quebec and the St. Lawrence River.

The purpose of networks for monitoring general water quality is to characterize, using current physicochemical and bacteriological parameters, the quality of water in spatial terms and to monitor the evolution of this quality over time. For the regular monitoring of the general quality of river and river water, the parameters measured are: total phosphorus, total nitrogen, nitrites and nitrates, ammonia nitrogen, chlorophyll a, pheopigments, faecal coliforms, faecal coliforms, turbidity, suspended matter, pH, conductivity, dissolved organic carbon and temperature. This data is used to calculate the Bacteriological and Physicochemical Water Quality Index (IQBP), a water quality classification index.

The data set on physicochemical monitoring of rivers and rivers also includes the drainage areas of some of the stations. The attribute table provides a compilation of land use by category for the last year available at the time the data was generated. Follow-up is carried out annually.This third party metadata element was translated using an automated translation tool (Amazon Translate).

Données et ressources

Info additionnelle

Champ	Valeur
Dernière modification	avril 17, 2026, 20:53 (TU)
Créé le	avril 17, 2026, 20:53 (TU)
contact_email	infocoursdeau@environnement.gouv.qc.ca
contact_person	{"en": "Government and Municipalities of Québec; Government and Municipalities of Québec; Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs", "fr": "Gouvernement et municipalités du Québec; Gouvernement et municipalités du Québec; Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs"}
criticality_level	[]
data_dictionary	EPSG:102100,EPSG,unknown
geographic_scope	[]
open_canada_collection	fgp
open_canada_date_published	2019-03-14 00:00:00
open_canada_keywords	{"en-t-fr": ["Drainage area", "Ammonia nitrogen", "Total nitrogen", "Chlorophyll a", "Fecal coliforms", "Physicochemical data", "IQBP", "Bacteriological and Physicochemical Quality Index", "Suspended material", "Nitrites and nitrates", "Total phosphorus", "Water quality", "River network", "Rivières network", "Government information"], "fr": ["Aire de drainage", "Azote ammoniacal", "Azote total", "Chlorophylle a", "Coliformes fécaux", "Données physicochimiques", "IQBP", "Indice de Qualité Bactériologique et Physicochimique", "Matière en suspension", "Nitrites et nitrates", "Phosphore total", "Qualité de l eau", "Réseau-fleuve", "Réseau-rivières", "Information gouvernementale"]}
open_canada_subject	["form_descriptors", "nature_and_environment", "science_and_technology"]
sensitivity_level	unrestricted
title_fr	Suivi de la qualité de l'eau du fleuve et des rivières
update_frequency	P1Y