Analysis of Radioactive Releases During Proposed Demolition Activities for the 224-U and 224-UA Buildings

Napier, Bruce A. ; Rishel, Jeremy P. ; Droppo, James G.

关键词: AIR;    CONTAMINATION;    DEMOLITION;    SIMULATION;    SOILS;    STABILITY;    VELOCITY Demolition;    Uranium;    air exposure;    soil exposue;    air dispersion;    modeling;   

DOI  :  10.2172/1000643
RP-ID  :  PNNL-18332
PID  :  OSTI ID: 1000643
Others  :  Other: 830403000
Others  :  TRN: US1100226

学科分类：环境科学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

Atmospheric dispersion modeling has been conducted in support of the demolition of the 224-U and 224-UA buildings using estimated release rates to provide information on the location and levels of radioactive contamination that may be expected. The facilities surrounding the UO3 plant have the potential to affect dispersion patterns through various meteorological phenomena, including building wake effects. Hourly meteorological data collected over a 5-year period were used to examine the effects of wind speed, direction, and stability on projected concentrations of contaminants in air and deposited on nearby surfaces. The modeling results indicate that the radiological exposures from the planned demolition efforts will be below the designated limits for air and soil exposures.