Calculation of Groundwater Pathway Radiological Dose for the Hanford Site Composite Analysis Base Case

2020 ◽  
Author(s):  
Mahmudur Rahman ◽  
William Nichols
Keyword(s):  
Base Case ◽  
Composite Analysis ◽  
Hanford Site ◽  
Radiological Dose

scholarly journals Modelling and mitigating dose to firefighters from inhalation of radionuclides in wildland fire smoke

2015 ◽  
Vol 24 (5) ◽  
pp. 723 ◽  
Author(s):  
Brian J. Viner ◽  
Tim Jannik ◽  
Daniel Stone ◽  
Allan Hepworth ◽  
Luke Naeher ◽  
...  
Keyword(s):  
Environmental Conditions ◽  
Wildland Fire ◽  
Radioactive Material ◽  
Fuel Load ◽  
Base Case ◽  
Published Data ◽  
Case Scenario ◽  
Base Case Scenario ◽  
Fuel Loads ◽  
Radiological Dose

Firefighters responding to wildland fires where surface litter and vegetation contain radiological contamination will receive a radiological dose by inhaling resuspended radioactive material in the smoke. This may increase their lifetime risk of contracting certain types of cancer. Using published data, we modelled hypothetical radionuclide emissions, dispersion and dose for 70th and 97th percentile environmental conditions and for average and high fuel loads at the Savannah River Site. We predicted downwind concentration and potential dose to firefighters for radionuclides of interest (137Cs, 238Pu, 90Sr and 210Po). Predicted concentrations exceeded dose guidelines in the base case scenario emissions of 1.0 × 107 Bq ha–1 for 238Pu at 70th percentile environmental conditions and average fuel load levels for both 4- and 14-h shifts. Under 97th percentile environmental conditions and high fuel loads, dose guidelines were exceeded for several reported cases for 90Sr, 238Pu and 210Po. The potential for exceeding dose guidelines was mitigated by including plume rise (>2 m s–1) or moving a small distance from the fire owing to large concentration gradients near the edge of the fire. This approach can quickly estimate potential dose from airborne radionuclides in wildland fire and assist decision-making to reduce firefighter exposure.

scholarly journals Addendum to Composite Analysis for Low-Level Waste Disposal in the 200 Area Plateau of the Hanford Site

2001 ◽  
Author(s):  
Marcel P. Bergeron ◽  
Eugene J. Freeman ◽  
Signe K. Wurstner ◽  
Charles T. Kincaid ◽  
Mike M. Coony ◽  
...  
Keyword(s):  
Waste Disposal ◽  
Composite Analysis ◽  
Hanford Site ◽  
Low Level

Composite Analysis for Low-Level Waste Disposal in the 200 Area Plateau of the Hanford Site, Southeast Washington

2008 ◽  
pp. 104-104-14 ◽  
Author(s):  
CT Kincaid ◽  
MP Bergeron ◽  
CR Cole ◽  
MD Freshley ◽  
VG Johnson ◽  
...  
Keyword(s):  
Waste Disposal ◽  
Composite Analysis ◽  
Hanford Site ◽  
Low Level

scholarly journals Hanford Site Annual Report Radiological Dose Calculation Upgrade Evaluation

2010 ◽  
Author(s):  
Sandra F. Snyder
Keyword(s):  
Annual Report ◽  
Dose Calculation ◽  
Hanford Site ◽  
Radiological Dose

Summary Analysis: Hanford Site Composite Analysis Update

2017 ◽  
Author(s):  
W. E. Nichols ◽  
L. L. Lehman
Keyword(s):  
Composite Analysis ◽  
Hanford Site
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