1. I. Public Law 88-206 as amended by Public Law 91-604 84 Stat. 1676 (42 U.S.C. 1857 etseq.).
2. National Primary and Secondary Ambient Air Quality Standards;Title;Fed. Register,1971
3. Aerometric and Emissions Reporting Svstem (internal report U.S. Environmental Protection Agency OAQPS Research Triangle Park N.C. February 1975).
4. A ir Quality and Emissions Trends Annual Report (U.S. Environmental Protection Agency, Research Triangle Park, N.C;The National A ir Monitoring Program;Publication EPA-,1973
5. Monitoring and Air Quality Trends Report 1972 (U.S. Environmental Protection Agency Research Triangle Park N.C. Publication EPA-450/1-73-004 December 1973).