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By: Gizyn, W. I. - Ontario. Ministry of the Environment. Phytotoxicology Section.Edition:Publication info: [Toronto], Standards Development Branch, Phytotoxicology Section, Ontario Ministry of Environment and Energy, 1994Volume:Series:Holding Institution: Ontario Ministry of the EnvironmentSubjects: Environmental aspects Ontario Phytotoxins Polycyclic aromatic hydrocarbons Toxicity testing UCAR Carbon Canada Incorporated WellandBHL Collections: