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  1. Phytotoxicology Section investigation in the vicinity of Ethyl Corporation, Corunna, Ontario, August 23, 1989 : report / prepared by Phytotoxicology Section, Air Resources Branch, Ontario Ministry of the Environment.
    By: Ontario.
    Publication info: [Toronto] :The Section,1991.
    Contributed by: Ontario Ministry of the Environment (archive.org)
    Subjects: Air  Corunna  Effect of heavy metals on  Ethyl Corporation  Maple  Measurement  Ontario  Pollution  Vegetation surveys  
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