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Information identified as archived is provided for reference, research or recordkeeping purposes. It is not subject to the Government of Canada Web Standards and has not been altered or updated since it was archived. Please "contact us" to request a format other than those available.

Please find below links to supporting information published through the Canadian Environmental Sustainability Indicators initiative:

Canadian Environmental Sustainability Indicators:  Freshwater Quality Indicator – Data Sources & Methods presents details on the data sources and methods underlying the freshwater quality indicator as it was reported in Canadian Environmental Sustainability Indicators. The national freshwater quality indicator provides an overall measure of the suitability of water bodies to support aquatic life in selected monitoring sites in Canada.

Canadian Environmental Sustainability Indicators presents environmental indicators for water quality, air quality, and greenhouse gas emissions. The indicators are intended to assist those in government responsible for developing policy and measuring performance, while also helping individual Canadians who want to know more about the trends in their environment.