LLNL NESHAPs 2000 Annual Report

Gallegos, G M ; Harrach, R J ; Berger, R L ; Bertoldo, N A ; Tate, P J ; Peterson, S R

Lawrence Livermore National Laboratory

关键词: Lawrence Livermore National Laboratory;    Monitoring;    Us Epa;    Air;    Compliance;   

DOI  :  10.2172/15013291
RP-ID  :  UCRL-ID-113867-01
RP-ID  :  W-7405-ENG-48
RP-ID  :  15013291

美国|英语

来源: UNT Digital Library

【 摘 要 】

NESHAPs limits the emission of radionuclides to the ambient air from DOE facilities to levels resulting in an annual effective dose equivalent (EDE) of 10 mrem (100 {micro}Sv) to any member of the public. The EDEs for the Lawrence Livermore National Laboratory (LLNL) site-wide maximally exposed members of the public from 2000 operations are summarized here. {sm_bullet} Livermore site: 0.038 mrem (0.38 {micro}Sv) (45% from point-source emissions, 55% from diffuse-source emissions). The point-source emissions include gaseous tritium modeled as tritiated water vapor as directed by EPA Region IX, and the resulting dose is used for compliance purposes. {sm_bullet} Site 300: 0.019 mrem (0.19 {micro}Sv) (79% from point-source emissions, 21% from diffuse-source emissions). The EDEs were calculated using the EPA-approved CAP88-PC air dispersion/dose-assessment model, except for doses for four diffuse sources, which were calculated from measured concentrations and dose coefficients. Site specific meteorological data, stack flow data, and emissions estimates based on radionuclide usage inventory data or continuous stack monitoring data were the specific input to CAP88-PC for each modeled source.