Ontario's water quality objective development process

dc.contributor.authorAquatic Criteria Development Committee, Water Resources Branch, Ontario Ministry of the Environment
dc.coverage.spatialOntario
dc.date.accessioned2019-03-14T17:50:41Z
dc.date.available2019-03-14T17:50:41Z
dc.date.copyright1992
dc.date.createdMar-92
dc.degree.departmentArchive of Agri-Environmental Programs in Ontarioen
dc.descriptionOntario Ministry of the Environment
dc.descriptionOther O.M.E. Environmental Reports
dc.description.abstractAs part of its program to ensure that the surface waters of Ontario are satisfactory for aquatic life and recreation, the Ontario Ministry of the Environment develops Provincial Water Quality Objectives (PWQOs) and Guidelines (PWQGs). This report details the procedures used to develop PWQOs and PWQGs. PWQOs are developed from the best available knowledge on the effects of substances on aquatic life. Data are required for acute and chronic toxicity, bioaccumulation and mutagenicity. Also considered is available information on environmental fate, physical-chemical properties, taste and odour in water and tainting of fish tissues. If adequate information is unavailable for setting a PWQO, a PWQG is developed using uncertainty factors which depend on the quantity and quality of the toxicological data.
dc.formatpdf
dc.identifier.urihttp://hdl.handle.net/10214/15785
dc.language.isoen
dc.publisherOntario Ministry of the Environment
dc.rightsQueen's Printer for Ontario, Crown Copyright, Non-Commercial Use Permitted
dc.rights.holderQueen's Printer for Ontario
dc.rights.urihttps://www.ontario.ca/page/copyright-information-c-queens-printer-ontario
dc.subjectwater quality
dc.subjectProvincial Water Quality Objectives
dc.subjectProvincial Water Quality Objectives Guidelines
dc.subjecttoxicity
dc.subjectbioaccumulation
dc.subjectmutagenicity
dc.titleOntario's water quality objective development process
dc.typeReport

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