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  1. Phytotoxicology survey report : UCAR Carbon Canada Incorporated, Welland, 1992 & 1993 / prepared by: William I. Gizyn.
    By: Gizyn, W. I. - Ontario.
    Publication info: [Toronto] :Standards Development Branch, Phytotoxicology Section, Ontario Ministry of Environment and Energy,1994.
    Contributed by: Ontario Ministry of the Environment (archive.org)
    Subjects: Environmental aspects  Ontario  Phytotoxins  Polycyclic aromatic hydrocarbons  Toxicity testing  UCAR Carbon Canada Incorporated  Welland  
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