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Subjects: Algicides

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Ultrastructural changes as indicators of the effectiveness of a Hyamine Quaternary compound as an algacide in controlling growth of the filamentous alga, Cladophora (chlorophyta) /report prepared for Limnology Section, Water Resources Branch, Ontario Ministry of the Environment ; report prepared by S.L. Wong & J.F. Wainwright [1992]
Ontario. Ministry of the Environment
https://archive.org/details/ultrastructuralc00wonguoft
Ultraviolet disinfection technical bulletin [2010]
Ontario. Ministry of the Environment. Safe Drinking Water Branch
https://archive.org/details/ultravioletdisin00snsn21845
Ultraviolet disinfection of domestic sewage and stormwater : a literature evaluation / [1978]
Ontario. Ministry of the Environment. Safe Drinking Water Branch
https://archive.org/details/ultravioletdisin00tone
Understanding the organization and program/activity structures / [1984]
Ontario. Ministry of the Environment. Safe Drinking Water Branch
https://archive.org/details/understandingorg00onta
Understanding the organization and program/activity structures [1983]
Ontario. Ministry of the Environment. Safe Drinking Water Branch
https://archive.org/details/understandingorg83onta
Fact sheet : understanding risk assessments [2007]
Ontario. Ministry of the Environment
https://archive.org/details/understandingri00snsn21523
Union (Essex County) DWSP Water Supply System Report for 1991 [2007]
Ontario. Ministry of Environment and Energy. Environmental Monitoring and Reporting Branch
https://archive.org/details/unionessexcounty00ontauoft
Union water supply system : annual report 1988. [1990]
Ontario. Ministry of Environment and Energy. Environmental Monitoring and Reporting Branch
https://archive.org/details/unionwatersupply00onta
Union water supply system : annual report 1987. [1988]
Ontario. Ministry of Environment and Energy. Environmental Monitoring and Reporting Branch
https://archive.org/details/unionwatersupply87onta
Unslaked lime : it's direct use in phosphorus removal processes / [1980]
Ontario. Ministry of Environment and Energy. Environmental Monitoring and Reporting Branch
https://archive.org/details/unslakedlimeitsd00onta
Update and New Proposals Toxics Reduction Act, 2009 - January 2011 Consultations
Ontario. Ministry of the Environment
https://archive.org/details/updateandnewpro00snsn21522
Meeting the challenge of climate change : 1996 update on initiatives in Ontario to reduce greenhouse gas emissions
Ontario. Ministry of Environment and Energy
https://archive.org/details/updateclimatechange00ontauoft
Update report : an environmental evaluation of the Lower Welland River / [1993]
Ontario. Ministry of Environment and Energy
https://archive.org/details/updatereportenvi00pope