Sort By:
  1. Assessment report on sulphur dioxide for developing ambient air quality objectives : effects on vegetation.
    By: Alberta.
    Publication info: [Edmonton] :Alberta Environment,2004.
    Contributed by: University of Alberta Libraries (archive.org)
    Subjects: Air  Air quality  Air quality management  Alberta  Effect of pollution on  Environmental aspects  Plants  Pollution  Standards  Sulfur dioxide  
    View Book
  2. Clean air protection problems at national parks and wilderness areas : hearing before the Environment, Energy, and Natural Resources Subcommittee of the Committee on Government Operations, House of Representatives, One Hundred Third Congress, second session, April 29, 1994.
    By: United States.
    Publication info: Washington :For sale by the U.S. G.P.O., Supt. of Docs., Congressional Sales Office,1995.
    Contributed by: Boston Public Library (archive.org)
    Subjects: Air  Air quality management  Environmental monitoring  National parks and reserves  Physiological effect  Pollution  Prevention  United States  Wilderness areas  
    View Book