1. Fed. Regist.1971,36,8186–8187.
2. Clean Air Act. Public Law 101-549, 1990.
3. Fed. Regist.1994, 59(23), 5164–5166.
4. Review of National Ambient Air Quality Standards for Ozone;U.S. Environmental Protection Agency, Ozone NAAQS Development Project Plan 1993. Office of Air Planning and Standards, Ambient Standards Branch: Research Triangle Park, NC, 1993.
5. Air Quality Criteria for Ozone and other Photochemical Oxidants;U.S. Environmental Protection Agency. The Environmental Criteria and Assessment Office: Research Triangle Park, NC, 1986; EPA/600/P-93/0046F.