A Water Quality Index (WQI) is a means to summarize large amounts of water quality data into simple terms (e.g. good or fair) for reporting to management and the public in a consistent manner. Similar to the UV index and air quality index, it evaluates and ranks the quality of water bodies for various beneficial uses of water, such as habitat for aquatic life, agricultural irrigation and livestock water and drinking water supplies.
Water Quality Index Calculators
Canadian Water Quality Index (CWQI)
Site Specific Water Quality Index (SS-WQI)
Forestry Water Quality Index (FWQI)
Agri-food Water Quality Index (AFWQI)
Applications of WQI in Newfoundland and Labrador
Canadian Environmental Sustainability Indicators (CESI)
Reports, Publications and Presentations
Province of Newfoundland and Labrador
Water Quality Index Applied to the Exploits River Watershed
Application of the WQI to Assess the Effectiveness of Best Management Practices
National and Other Jurisdictions
Canadian Environmental Sustainability Indicators (CESI) National Reporting
NL WRMD has been contributing to the CESI National Freshwater Indicator since its inception in
2005. CESI’s Freshwater Quality Indicator
Application and Testing of the Water Quality Index in Atlantic Canada
A pilot study was completed by CCME as the first comprehensive attempt to apply the WQI to the
four Atlantic Provinces. This report used both provincial and federal data in the WQI to reflect the
state of information and knowledge of our water resources. Report Summary
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