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  1. Polycyclic aromatic hydrocarbons : sources, fate and levels in air, water, soil, sediments, sludge and food in Ontario / prepared for Hazardous Contaminants Branch by Concord Scientific Corporation and Beak Consultants.
    By: Beak Consultants - Concord Scientific Corporation - Ontario.
    Publication info: [Toronto] :Environment Ontario,1992.
    Contributed by: Ontario Ministry of the Environment (archive.org)
    Subjects: Degradation  Environmental aspects  Ontario  Polycyclic aromatic hydrocarbons  
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