title: Using a Spreadsheet to Compute the Maximum Wind Sector 99.5th Percentile X/Q Value in Accordance with DOE-STD-3009-2014.
abstract: The U.S. Department of Energy Standard 3009-2014 requires one of two methods to determine the simple Gaussian relative concentration (X/Q) of pollutant at plume centerline downwind to a receptor for a 2-h exposure duration from a ground-level release (i.e., less than 10 m height) which are (1) the 99.5th percentile X/Q for the directionally-dependent method and (2) the 95th percentile X/Q for the directionally-independent method. This paper describes how to determine the simple Gaussian 99.5th percentile X/Q for the directionally-dependent method using an electronic spreadsheet. Refer to a previous paper to determine the simple Gaussian 95th percentile X/Q for the directionally-independent method using an electronic spreadsheet (Vickers 2015). The method described herein is simple, quick, accurate, and transparent because all of the data, calculations, and results are visible for validation and verification.
authors.affiliation: *U.S. Department of Energy NNSA Production Office (NPO), NPO-10 Jack Case Center, MS 8009, PO Box 2050, Oak Ridge, TN 37831.
authors.forename: Linda
authors.initials: L
authors.lastname: Vickers
mesh_terms: D000396:Air Pollutants, Radioactive / Q000032:analysis*; D003198:Computer Simulation; D003627:Data Interpretation, Statistical; D006801:Humans; D008685:Meteorological Concepts; D011834:Radiation Monitoring / Q000379:methods* / Q000706:statistics & numerical data; D011835:Radiation Protection / Q000592:standards*
chemical_list: D000396:Air Pollutants, Radioactive