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Title: Challenges of Air Monitoring Around a Legacy Waste Disposal Site in an Urban Location

 [1];  [1];  [1];  [1];  [1]
  1. Los Alamos National Laboratory
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
OSTI Identifier:
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DOE Contract Number:
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Resource Relation:
Conference: Health Physics Society Annual Meeting ; 2017-07-09 - 2017-07-13 ; Raleigh, North Carolina, United States
Country of Publication:
United States
Environmental Protection; Rad-NESHAP, Air monitoring, MDA-B, Materials Disposal Area B, Airnet

Citation Formats

Fuehne, David Patrick, Green, Andrew Allan, Mcnaughton, Michael, Ruedig, Elizabeth, and Whicker, Jeffrey Jay. Challenges of Air Monitoring Around a Legacy Waste Disposal Site in an Urban Location. United States: N. p., 2017. Web.
Fuehne, David Patrick, Green, Andrew Allan, Mcnaughton, Michael, Ruedig, Elizabeth, & Whicker, Jeffrey Jay. Challenges of Air Monitoring Around a Legacy Waste Disposal Site in an Urban Location. United States.
Fuehne, David Patrick, Green, Andrew Allan, Mcnaughton, Michael, Ruedig, Elizabeth, and Whicker, Jeffrey Jay. 2017. "Challenges of Air Monitoring Around a Legacy Waste Disposal Site in an Urban Location". United States. doi:.
title = {Challenges of Air Monitoring Around a Legacy Waste Disposal Site in an Urban Location},
author = {Fuehne, David Patrick and Green, Andrew Allan and Mcnaughton, Michael and Ruedig, Elizabeth and Whicker, Jeffrey Jay},
abstractNote = {},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2017,
month = 8

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  • Chemical reprocessing of spent nuclear fuels at the US Department of Energy (DOE) Hanford Site has generated large volumes of low-level radioactive liquid effluents. The majority of these effluents have been used strictly for cooling or other support functions and have been discharged to ditches and ponds. The 216-U-10 (U) Pond and 216-Z-19 (Z-19) Ditch are two such disposal facilities and were selected as representative examples of an integrated system of ditches, ponds, and overflow facilities collectively referred to as the U Pond disposal system. The U Pond system has been used since 1943 and has received a large varietymore » of radioisotopes from several sources. The long-term use of U Pond and the Z-19 Ditch has resulted in the localized accumulation of transuranic and fission-product inventories due to sorption and filtration of particulates onto the uppermost sediments. The various radionuclides have different distributions due to their individual discharge sources and behaviors in this type of a disposal system. Cesium-137 is the most widely distributed radionuclide and was used as an index radionuclide to define the maximum extent of contamination. Its 400 pCi/g isopleth indicates surface contamination of approximately 19 hectares at U Pond and the 216-U-11 Overflow Basin. This contamination is localized in the top ten centimeters (cm) of soil and decreases rapidly with depth. The Z-19 Ditch and its backfilled predecessors, the 216-Z-11 (Z-11) and 216-A-11 (Z-1) Ditches, received Plutonium-238/239/240 and Americium-241 discharges from the 234-5Z and 231-Z facilities and retained more than 90% of the plutonium inventory discharged to the U Pond system. Based upon the results of this study, the U Pond system has been found to be an effective waste management facility for disposing of large volumes of low-level liquid wastes.« less
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