Physicochemical and bacteriological temporal trends in surface water

This dataset presents the physicochemical and bacteriological evolution of water in rivers in southern Quebec and the St. Lawrence River. The 10-year (2015-2024) temporal trends on the rivers and in the river present the evolution of the ambient concentrations of physicochemical and bacteriological parameters, while the 20-year (2004-2023) time trends on the rivers present the evolution of loads and concentrations adjusted for the flows of physicochemical and bacteriological parameters.

*Note that the temporal trends in total phosphorus have been invalidated due to an underestimation of concentrations caused by analytical biases that affect the majority of the data targeted for calculations. Therefore, they are not broadcast.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

Simple

Date ( RI_367 )
2026-05-13
Date ( RI_366 )
2026-05-13
RI_418
  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 - Direction principale de la qualité des milieux aquatiques ( )
https://www.donneesquebec.ca
Status
planned; planifié RI_597
Maintenance and update frequency
annually; annuel RI_539
Keywords ( RI_528 )
  • Atlas of water
  • Ammonia nitrogen
  • Total nitrogen
  • Bacteriology
  • Charge
  • Chlorophyll α
  • Fecal coliform
  • Concentration
  • EGRET
  • River
  • Suspended material
  • Nitrate
  • Nitrite
  • Total phosphorus
  • Physicochemistry
  • Water quality
  • Rivière
  • Saint-Laurent
  • Trend
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Government information
Use limitation
Creative Commons 4.0 Attribution (CC-BY) licence – Quebec (https://www.donneesquebec.ca/fr/licence/)
Access constraints
license; licence RI_606
Use constraints
license; licence RI_606
Spatial representation type
vector; vecteur RI_635
Metadata language
eng; CAN
Metadata language
fra; CAN
Topic category
  • Geoscientific information
Begin date
2004-01-01
End date
2024-12-31
N
S
E
W
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Reference system identifier
EPSG / EPSG:102100 / unknown
Distribution format
  • CSV ( unknown )

  • ESRI REST ( unknown )

  • FGDB/GDB ( unknown )

  • GEOJSON ( unknown )

  • GPKG ( unknown )

  • HTML ( unknown )

  • PDF ( unknown )

RI_418
  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 - Direction principale de la qualité des milieux aquatiques ( )
https://www.donneesquebec.ca
OnLine resource
Physicochemical and bacteriological temporal trends in surface water ( HTTPS )

Dataset;CSV;fra

OnLine resource
Physicochemical and bacteriological temporal trends in surface water - Historical series ( HTTPS )

Dataset;CSV;fra

OnLine resource
Physicochemical and bacteriological temporal trends in surface water ( HTTPS )

Web Service;ESRI REST;fra

OnLine resource
Physicochemical and bacteriological temporal trends in surface water ( HTTPS )

Dataset;FGDB/GDB;fra

OnLine resource
Physicochemical and bacteriological temporal trends in surface water - Historical series ( HTTPS )

Dataset;FGDB/GDB;fra

OnLine resource
Physicochemical and bacteriological temporal trends in surface water ( HTTPS )

Dataset;GEOJSON;fra

OnLine resource
Physicochemical and bacteriological temporal trends in surface water - Historical series ( HTTPS )

Dataset;GEOJSON;fra

OnLine resource
Physicochemical and bacteriological temporal trends in surface water ( HTTPS )

Dataset;GPKG;fra

OnLine resource
Physicochemical and bacteriological temporal trends in surface water - Historical series ( HTTPS )

Dataset;GPKG;fra

OnLine resource
Atlas of water ( HTTPS )

Dataset;HTML;fra

OnLine resource
Original metadata (https://www.donneesquebec.ca) ( HTTPS )

Dataset;HTML;fra

OnLine resource
Metadata - 10-year trends in rivers and the St. Lawrence River ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Metadata - 20-year trends in rivers ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Metadata - Drainage areas for trend monitoring stations ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Method for estimating temporal trends in water quality in rivers ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Guide for analyzing trends in river water quality using the EGRET software package ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Metadata - Physicochemical and bacteriological temporal trends in surface water - Historical series ( HTTPS )

Supporting Document;PDF;fra

File identifier
76c29a38-21a4-4df9-88a5-2a1e0e7574cb XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2026-08-04
Metadata standard name
North American Profile of ISO 19115:2003 - Geographic information - Metadata
Metadata standard version
HNAP ISO:19115 - 2003
RI_418
  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 - Direction principale de la qualité des milieux aquatiques ( )
https://www.donneesquebec.ca
 
 

Overviews

overview

Spatial extent

N
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W
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Keywords


Provided by

Associated resources

Not available