Canadian Lake Erie Nutrient Load Estimates

Water quality monitoring data collected in priority tributaries to provide nutrient concentration data to estimate nutrient loads to the waters of the Great Lakes. Data is collected to advance the science to understand and address the complex problem of recurrent toxic and nuisance algae in the Great Lakes. The majority of the data is focused on Lake Erie, the smallest, shallowest of the Great Lakes, and most susceptible to nearshore water quality issues. Water quality monitoring is conducted to establish current nutrient loadings from selected Canadian tributaries; to enhance the knowledge of the factors that affect tributary and nearshore water quality, ecosystem health, and algae growth; to establish binational lake ecosystem objectives, phosphorus objectives, and phosphorous load reduction targets, and to support the development of a binational nearshore assessment and management framework.

This data includes the most recent Canadian nutrient loading estimates to Lake Erie. Estimates are calculated using Environment and Climate Change Canada's Erie Loading Tool - a Windows based desktop application that is based on the "Dolan approach" for estimating loads described in Maccoux et al. (2016).

https://www.sciencedirect.com/science/article/pii/S0380133016301460

Data and Resources

Additional Info

Field Value
Last Updated April 17, 2026, 20:28 (UTC)
Created April 17, 2026, 20:28 (UTC)
contact_email enviroinfo@ec.gc.ca
contact_person {"en": "Government of Canada; Environment and Climate Change Canada, 1-800-668-6767, ec.enviroinfo.ec@canada.ca", "fr": "Gouvernement du Canada; Environnement et Changement climatique Canada, 1-800-668-6767, ec.enviroinfo.ec@canada.ca"}
criticality_level []
data_dictionary []
geographic_scope ["0"]
open_canada_collection primary
open_canada_date_published 2018-09-03 04:00:00
open_canada_keywords {"en": ["Water quality", "Water quality", "Great Lakes", "Trends", "Status", "Nutrients", "Loads", "Ecosystem", "Transboundary", "Monitoring", "Surveillance", "Environment", "Lake Erie"], "fr": ["Qualité de l'eau", "La qualité de l'eau", "Grands Lacs", "Tendances", "Statut", "Nutriments", "Pesticides", "écosystème", "Transfrontalier", "Monitoring", "Surveillance", "Environnement", "Lac Érié"]}
open_canada_subject ["nature_and_environment"]
sensitivity_level unrestricted
title_fr Données sur les charges nutritives du lac Érié
update_frequency as_needed