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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Ontario. Air Resources Branch. - Ontario. Ministry of the Environment. - SENES Consultants Limited.
    Publication info: [Toronto, Ont.], Queens Printer for Ontario, c1992
    Holding Institution: Ontario Ministry of the Environment
    Subjects: Acid rain  Air  Environmental aspects  Nitrogen oxides  Ontario  Pollution  Sulfur dioxide  
  2. By: WBK & Associates Inc. - Alberta. Alberta Environment.
    Publication info: Edmonton Alberta Environment 2006
    Holding Institution: University of Alberta Library
    Subjects: Acid deposition  Air  Alberta  Environmental monitoring  Measurement  Monitoring  Nitrogen oxides  Pollution  Sulfur oxides  
  3. By: WBK & Associates Inc. - Alberta. Alberta Environment.
    Publication info: Edmonton Alberta Environment 2005
    Holding Institution: University of Alberta Library
    Subjects: Acid deposition  Air  Alberta  Environmental monitoring  Measurement  Monitoring  Nitrogen oxides  Pollution  Sulfur oxides  
  4. By: Zheng, Danrui. - Alberta. Air Issues and Monitoring Branch. - Alberta. Environmental Regulatory Service. Chemicals Assessment and Management Division. - Clean Air Strategic Alliance.
    Publication info: Edmonton, Alberta Environmental Protection, Environmental Regulatory Service, Chemicals Assessment and Management Division, Air Issues and Monitoring Branch, 1997
    Holding Institution: University of Alberta Library
    Subjects: Acid deposition  Acid rain  Alberta  Environmental aspects  Nitrogen oxides  Sulfur dioxide