Atmospheric Dispersion Modeling of the February 2014 Waste Isolation Pilot Plant Release

Nasstrom, John¹  Piggott, Tom¹  Simpson, Matthew¹  Lobaugh, Megan¹  Tai, Lydia¹  Pobanz, Brenda¹  Yu, Kristen¹ 

[1] Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

关键词: WIPP;    SIMULATION;    DEPOSITION;    NEW MEXICO;    AIR;    CONCENTRATION RATIO;    RADIOACTIVITY;    ABUNDANCE;    RADIATION DOSES;    PARTICLES;    PLUMES;    TURBULENCE;    WIND;    RADIOACTIVE AEROSOLS;   

DOI  :  10.2172/1252613
RP-ID  :  LLNL-TR--666379
PID  :  OSTI ID: 1252613
Others  :  TRN: US1601362

美国|英语

来源: SciTech Connect

【 摘 要 】

This report presents the results of a simulation of the atmospheric dispersion and deposition of radioactivity released from the Waste Isolation Pilot Plant (WIPP) site in New Mexico in February 2014. These simulations were made by the National Atmospheric Release Advisory Center (NARAC) at Lawrence Livermore National Laboratory (LLNL), and supersede NARAC simulation results published in a previous WIPP report (WIPP, 2014). The results presented in this report use additional, more detailed data from WIPP on the specific radionuclides released, radioactivity release amounts and release times. Compared to the previous NARAC simulations, the new simulation results in this report are based on more detailed modeling of the winds, turbulence, and particle dry deposition. In addition, the initial plume rise from the exhaust vent was considered in the new simulations, but not in the previous NARAC simulations. The new model results show some small differences compared to previous results, but do not change the conclusions in the WIPP (2014) report. Presented are the data and assumptions used in these model simulations, as well as the model-predicted dose and deposition on and near the WIPP site. A comparison of predicted and measured radionuclide-specific air concentrations is also presented.