An edition of EPA's proposed revisions to the particulate matter air quality standards (2009)

EPA's proposed revisions to the particulate matter air quality standards

hearing before the Subcommittee on Clean Air, Climate Change, and Nuclear Safety of the Committee on Environment and Public Works, United States Senate, One Hundred Ninth Congress, second session, July 13, 2006.

By United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Clean Air, Climate Change, and Nuclear Safety.