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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Clement, R. E. - Ontario. Ministry of the Environment. - Canada. Environment Canada.
    Publication info: [Toronto, Ont.], Environment Ontario, 1992
    Holding Institution: Ontario Ministry of the Environment
    Subjects: Air  Analysis  Congresses  Dibenzodioxin  Dibenzofurans  Pollution  Sampling