TY - BOOK CN - EP 4.8: CY - Research Triangle Park, N.C. : DA - [1998] ID - 222815 KW - Ozone. KW - Atmospheric ozone. N1 - "June 1998." N1 - Shipping list no.: 99-0897-M. N1 - "EPA-454/R-98-001." PB - U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, Emissions, Monitoring and Analysis Division, PP - Research Triangle Park, N.C. : PY - [1998] T1 - Guideline for selecting and modifying the ozone monitoring season based on an 8-hour ozone standard TI - Guideline for selecting and modifying the ozone monitoring season based on an 8-hour ozone standard ER -